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Патент USA US2408394

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Oct. l, 1946.
2,40839 I
J. A. GlTs ET Al.
FLASHLIGHT
Filed Jan. ,'30, 1944
2 Sheets-Shest l
JNVENTOR.
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Oct. 1, 1946.
J. A. G11-s ETAL
2,408,393
FLASHLIGHT
Filed Jan. 2o, l1944
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2 Sheets-Sheet 2
Patented Oct. 1, 1946
2,408,393
-UNITED STATES PATENT OFFICE
2,408,393
FLASHLIGHT i
Joseph A. Gits and Jules I’. Gits, Chicago, Ill.
Application January 2o, 194i, serial No. Sissi;
20 Claims. A(Cl. 20G-60)
1
`This invention relates to flashlights and more
particularly to waterproof flashlights, an object
being to provide such a device that shall have all
the necessary features of construction and oper
ation to enable its convenient and satisfactory
use under all ordinary conditions and under the
most severe conditions as well, such as in heavy
other rivet or conductor contact by an inward
substantially radial pressure or butt contact
movement _instead of a longitudinal sliding ccn
tact movement.
i
_
_
_
These switch contacts are preferably seated in
rains, iording streams, submergence, the neces
va shallow exterior recess or groove in the shell _be
sity'of signaling by dashing or by a continuous
neath the housing of the switch mechanism of
suilicient depth to accommodate the radial move
beam, sometimes immediately upon emerging
>from the water.
2
rivet or extension. The free .end_of the spring is
thus adapted to be brought into contact with the
Such use, of course, involves
ment of the springcontact in opening the circuit.
a Switch, and practical requirements necessitate
A thin flexible gasket, sheet or layer of suitable
that it be located on the side or" the eiongated
waterproof material is placed over the recess and
shell or casing, be comparatively flat or thin with
no greatly protruding parts such as operating 15 the contacts and is sealed to the casing at its
edges, preferably as hereinafter described. , _ _
levers or the like, be conveniently operable for
The switch housing and operating partspref
intermittent or continuous beam operatic-n or for
erably- of a more or less _iiat construction_.__are
no operation at all, and the parts to remain in
placed over the said gasket, the peripheral iiange
their selected positions of operation until p-osi
tively moved therefrom whereby to avoid acci 20 of the housing conforming tothe surface contour
of the casing about the recess andbeing suitably
dental or inadvertent displacement.
secured to the casing as by rivets through the cas
In such devices, the current conductors may
ing walls and gasket. This eiïectively clamps and
be arranged inside the shell or casing where they
seals the gasket around _its edges to the `casing
are protected but the switch contacts connected
therewith must be'brought out to the exterior " " about the recess or groove and prevents the en
trance oi moisture to the recess with its switch
for engagement by the movable switch contacts in
order to make and break the circuit therethrough
contacts.
without ` the operating movable parts passing
through the shell. But the switch housing over
lying and enclosing said contacts and switching
such as a push-button for the intermittent or
A further object of the invention, therefore, is
to provide a device of the class described which,
while conforming to the standard requirements
as to form, size, space and operation, shall not
permit dampness within the switch housing to
reach the switch contacts.
'
`
i In carrying out the invention, provision is made
for separating the switch proper between the eX
posed ends of the conductor contacts and the
operating mechanism therefor. The switch con
tacts are preferably operated by a transverse or
radial movement as distinguished from a longi
tudinal movement, having reference to the elon
gated shell or casing of the device, as by a suit
able spring metal Contact strip fixed at one end
__
_
cludes a radially or transversely acting pressure
whereby said contact may be operated by _the
ñasli‘operationof the switch, the connections of
therefore may admit more or less dampness or
moisture to the interior ofthe same.
_
member placed over the position of the spring
contact within the groove inside of the gasket,
parts has operating devices passing therethrough,
a three-position thumb-piece, or ‘other parts,
which are not Water-tight with the housing and
_
The switch-operating mechanism thus enclosed
within the housing outside the flexible gasket in
"at
pressure o_f said member directly through _the
gasket Without rubbing along the surface of the
same as would be the case >with a longitudinally
slidable or rubbing contact operating device in
the housing, and without being attached thereto.
Thus the life of ther gasket is preserved, a better
and more positive action of the switch contacts
is, obtained, and no'sacriñce is made of the com
pact flat top housing and longitudinal operat
ing mechanism therein, as will be described.
Thus various additional objects of the inven
tion are present and all will-appear from the de
tailed description and- claims to follow, in con
nection with the accompanying drawingswhich
represent an embodiment ofthe invention, and in
whi'ch-
'
`
’
'
i
Fig. l is a side View of a ñashlight embodying
the present invention;
'
Fig. 2 is a longitudinal section of the same,
to one of the conductor rivets or exterior exten
taken on the line 2_2 oi" Figi;
'
sions with its free end standing over and normally
3 is a similar section, taken at right angles
out of contact with the other exterior conductor 55 to Fig.
that of Fig. 2;
' ‘
'
`
I
2,408,393
3
them are provided, may be suíiicient to secure
a watertight seal at both ends of the casing for
certain uses of the ñashlight. When gaskets I2'
and I1' are used, it will be impossible for mois
ture or water to reach the interior of the ñash
light under any condition of use because they as
sure a watertight relation at all times.
The reflector I4 is preferably somewhat arcu
ate in shape and the light socket I5 is preferably
provided with an open fend ‘through which the
central'terminal of the 4lamp 1S may project. A
transverse bridge 2l across. the shell IS may be
molded integrally within the shell at the junc
ture of the cylindrical portion and the right
Fig. 4 is a bottom view of the exterior switching
mechanism;
Fig. 5 is a longitudinal section on a larger scale
through the switch and casing wall and showing
the parts in the “01T” position of the switch;
Fig. 6 is a similar view showing the switch parts
in the intermediate position for intermittent or
ñashing operation of the light;
Fig. '7 is a similar viewshowing the parts in the
third position :for the ~continuous .or beam oper
ation of the light;
Fig. 8 i's a cross-section through the switch and
casing on the line 8-8 of Fig. 5; and
Fig. 9 is an exploded view of the switch parts
angular head II. From the central terminal of
lthe lamp I6 the circuit is continued through
.the bridge 2l by a curved spring contact mem
in perspective.
The flashlight shown comprises _preferably an
elongated shell or casing Il), circular in cross
section, having at the front end-a right-angular
head I I, which is threaded to receive an >internally
ber 22 engaging at its free end the said terminal
of the .lamp bulb and being secured at'y its other
end
to the adjacent face of bridge 2i by means
20
threaded cap I2, adapted to carry a lens I3 >and
Iof a rivet 23 which _passes vthrough .the .bridge
an assemblycomprising a reflector I4, a light
andthe .inner head `.of which .forms .a terminal
socketv I5. and alight bulb I6. Shell or 'casing
for engaging thefront terminal of the forward
ZIll ~is preferably elongated 'toreceive 'one :or more
batteryB, as «shown in Figs..2 .and„3.
batteries B, B', or'the equivalentarranged there
~
-
.The lamp .and socket arrangementmay be-of
in in .stacked relation, so that .the .terminals 25
any .approved type solong as the lamp when in
thereof are at or near the opposite ends ofthe
final position has Vits other .terminal .connected
shell yor casing.
with the -metallic reñector, which, .as will be de
The .shell or casing I0 is preferably of insula
scribed, is arranged to beconnectedthrough suit
tion, such as thermoplastic. material, which may
be molded `at .-low cost, particularly if .molded 30 able conductors, including vthe .operating switch,
.with the -rear `terminal of the rear .battery >B'..
under pressureby injection. This material, ad
.The arrangementshown, however, ispreferred, in
ditionally, .is somewhat yieldab'le-.and resilient
which the socket AI5 is an .externally threaded
whereby .to withstand fracture, - chipping .or .dent
tubular sleeve lof insulating `>material whichy if
jing when the device .is .dropped or .otherwise
desired, may be lthe Same as >that >of the shell.
roughlyhandled.. Further, .its yieldability and
This threads -into the ymetallic extension 24 vof
the .reflector I4. This extension y2li «may .be lin,
resiliency may be controlled'by ,the «use .of vsuit
able 'p'lasticizers to enable the material -to with
tegralwith the reflector .I4 or formed as a sepa
stand wide variations in .temperature as well as
.rate part and :interlocked therewith as »indicated
rough handling. 'The cap I2 maybe -of the
same material. .The lens iI3 .may be made of 40 at 25, but in any »event a metallic shoulder 26
'is formed so that the -flange 21 of the bulb I6,
transparent 'thermoplastic material .having . .the
forming the other terminal .of thebulb I6, may
same .index of refraction as glass, .whereby to
be clamped against 'the shoulder or .flange 25
reduce .liability of breakage .of .lens in case of
when the socket I5_ .is threaded into position,
dropping or other accident.
The rearend .of vthis .shell or .casing .l0 is ,ex 45, as Shown in Fig. 3, whereby the >electric circuit of
.thelamp tothe reñector is completed.
ternally threaded to receive an internally'threaded
.closure cap I1 preferably .of the samematerial
as the shell, said cap‘having a chamber receiv
ing a metal .strip .with its .endsbent rearwardly
.tojform va removable .U-.shaped bracket I8, ,pro
vided with .a spring .grip I9. 4riveted .centrally
thereto :to carry an vextra lamp `bulb .20, if Vde
sired.A
.The >interengaging threads at the ends .oi-the
Vshell ïlß and on thecaps 'I2 vand »I1 tend-to form
The rear‘battery terminal 28, comprising the.
end Vplate 'of `battery B', will firmly press-against
spirally vcoiled .spring -29 to `compress `itand fhold
-it against seat Si) .formingan internal shoulderin
cap ~.I‘I. This will `bring the outer convolution
»of the spring- into ñrm «electrical engagement
with lan `annular metal insert, .collar -or -sleeve
SI Aat the rear end of the cylinder. HL'When :the
.55 .
a watertight Aseal when -the caps are threaded
in position. An adequate number of threads,
together with the tendency of the thermoplastic
material to have. a tight gripping action between
end cap I‘I -is tightened.
-.
The circuit is. brought from the ends of the‘shell
to the location. of the operating switching‘mech
anism by two metal contact strips 32 and 33
which are located between'two integrally formed
spacer ribs 34 -on the Vinside surface îof the
its vown surfaces, provides a seal that prevents
shell, 'said ribs being of suhicient yheight »to pre
water or moisture from creeping past the thread
vent the batteries coming into contact with the
ed engagement into the Vinteriorcr” the «'shell;
conductor strips, to prevent short circuits ‘orxleak
Howevengaskets I2’ -are provided on opposite
age of ‘currentin the event the insulationcf the
sides .of -the rim :of reñector AIII `:and a «gasket
.
I1' isiprovidedbetweenfafshoulder I9' von casing 165 batteries -breaks down.
The forward strip 321mg a ri‘ght-angular'ex
v"land cap rI'I. .Captl'l may :have `~a 'iV-shaped
tension ‘or Contact end 35 pressing resilieritly
rib 'I8' about its rim :adapted vto bite into "gasket
-against the adjacent outer -surface of the `reflec
-I'I’ when cap ‘I1 Tis lthreaded 'tightly into vits
position engaging shoulder In'. These Agaskets
I 2' and I1' are furnished/when Tit is Vdesirable _
to assure a watertight relation Vbetween casing
Il] and both Vcaps I2‘and I1.. .'A's'stated, the‘tend
ency of thermoplastic material-to :provide-atig'ht
gripping 4action when Van ladequate lnumber of
threads and the proper size relation between '
tor Illxwhich permits the'reñec'tor assembly'to
be ‘readily removed vand inserted withoutrspecial
attention being-givenfto the contact 35m’ the use
of tools to disconnecto? connect the same. ' This
spring 35 completes rthe electric -circuit from the
reflector to the 'conductor 32. The lower `'spacer
rib @34, nas seen 'in'Fig v3, that is, Vonthe Aopposite
5
2,408,393
side of the conductor 32 from the reflector as
sembly, may have an integrally formed flange 36
extending under and upwardly inside the con
ductor strip 32 whereby to form a shelf-like sup
porting means for this forward end of the con
ductor strip in order to keep the right-angularly
extending linger or end 35 of conductor 32 prop
erly supported whereby suitably to engage the
reflector to complete the circuit therethrough.
in Figs. 4 and 9, and the shell or casing I0 of the
device has molded thereon a seat for the periph
eral edge flange thereof, as indicated. An outer
marginal raised rib or bead 44 on the shell l0
surrounds the' said seat and flange of the hous
ing and a similar raised rib or bead 45 is at the
inner periphery of the seat for the flange of the
switch housing 43.
The neoprene or similar sheet or gasket 42 is
The rear conductor strip 33 at the rear end of 10
of
the same outline form as the switch housing
the shell is secured thereto by a rivet 3l' which
43, as seen in Fig. 9, but is a little larger, so that
also holds the inserted sleeve 3| in place as well
when placed in position over the switch contacts
as the conductor in good electrical contact there
and recess, and the switch housing is pressed
with, the formed head of the rivet being pressed
down to seat at or below the threaded surface to 15 down thereon as indicated, the gasket is com~
pressed between the said beads or ribs 44 and 45
avoid interference with the threading of end cap
and to the seat by the flange of the switch hous
| 1 in place or its removal.
ing. This seals the joint all around against the
The inner ends of conductors 32 and 33 are
entrance of moisture. The switch housing 43 is
disposed opposite an elongated recess or groove
38 formed in the exterior of the shell or casing 20 firmly riveted to the shell or casing of the device,
preferably by three rivets, two at the forward
I 0. This recess is long enough to overlap the
end and one at the rear, as indicated by the holes
adjacent ends of the conductors 32 and 33, wide
43e in Fig. 9, passing through the said flange, the
enough (Fig. 8) to accommodate the switch
gasket
having similar holes 42a, and the elon
spring contact to be described, and deep enough
gated casing or shell ID, said rivets being of the
to receive the said spring contact and permit its
leak-proof type mentioned. Thus the switch con
free end proper operation transversely to open
tacts
within the groove or recess in the shell or
and close the circuit, as shown and hereafter de
casing I0 and the conductor rivets and connec
scribed.
tions therein are entirely protected from the
The rear end of forward conductor strip 32 is
presence of moisture.
secured in place by a rivet 39 seated in the for
The free end of spring contact 4| within the
ward end of recess or external groove 38, and
serves as one of the terminals or contacts of the
recess or groove moves in a radial or transverse
switch for opening and closing the circuit of the
device. The forward end of conductor 33 is like
wise secured in place by rivet 40 which is seated
erated by simple pressure through the gasket.
at the rear end of the groove or recess 38 and
serves to secure the contact spring 4| in the bot
tom of the recess and to provide a current-con
ductive path thereto. This spring extends to the
forward end ofthe recess over the contact rivet
39. It is normally biased to stand away from or
over the said contact rivet, but upon a transverse
inward pressure being applied to its free end it
closes contact with said rivet to complete the cir
cuit of the device.
These rivets, and in fact all the rivets passing
through the shell, are of the type and kind that
permit their heads to be formed without provid
ing connections that allow water and moisture to
seep into or otherwise gain access to the interior
of the shell I0. The yieldable or pliable nature of
the thermooplastic material of the shell and the
forming operation of the heads cause them to be
ñrmly pressed against and bite into the mate
rial, and, in the case of conductors 32 and 33, to
be pulled tightly against the inner Wall of this
thermoplastic material and form thereby a per
fect seal at each rivet.
In order that water or moisture may not get
into the recess 38 and to the rivets and switch
contacts therein, a suitable thin, flexible or elas
tic layer, sheet or gasket 42 of rubber or rubber
direction to open and close the circuit and is op
Thus there is no undue wear on the inside of the
gasket from such movement, as might be the case
with sliding switch contacts or the like.
Likewise the switch-operating pressure on the
outside of the gasket is radial or transverse, so
that no undue wear thereon due to a sliding en
gagement takes place in operating the switch.
This is accomplished by a longitudinally station
ary pressure member or spring 46, seen in per
spective in Fig. 9, and which is secured at its
rear end to shell or casing I!) by the rear` rivet
45 47 of the switch housing 43 which passes through
the housing flange, the gasket and the shell I0,
and in this instance also through the rear con
ductor strip 33 which serves as a washer or bear~
ing plate for the rivet on the inside of the shell,
50 thus securing all these parts ñxedly together and
in watertight relation so far as concerns the ad
mission of moisture to the inside of the shell |0.
This member 46 extends forwardly to the for
ward part of the raised part of housing 43, over
55 the outside of gasket 42, and with its free end
over the end of contact spring 4| on the inner
side of the gasket 42. The spring member 46 is
biased when in position so that its free end tends
normally to rise and not to apply pressure
60 through tl e gasket on the spring contact 4|,
although it may lie more or less close to the gas
ket 42. When an inward pressure is applied to
like waterproof material, preferably neoprene, is
the free end of this switch-operating spring 46,
laid over the recess and the switch contacts and
parts therein and is clamped and sealed at its Ll therefore, the pressure is carried through the gas
ket 42, which is elastic, iiexible or loose enough
edges in water-tight relation to the shell or cas
to permit the same, and the switch spring 4| is
ing I0 preferably by the peripheral edge flange of
thereby depressed and closes Contact with the
the housing 43 of the switch-operating parts, as
rivet contact 33, to close the lamp circuit of the
will be described.
device. When the pressure on the member 4S
This switch housing 43 has a central raised ñat
is released, it, together with the gasket and con
portion and a sloping edge portion terminating
in an outwardly extending peripheral flange
tact spring 4 |, will return to normal position and
the circuit is opened.
~
which is formed to conform to the surface of the
It is desirable, and for some uses imperative,
shell or casing to which it is attached. The
switch casing has a peripheral outline, as shown 75 that the switch have a permanent on or closed
position for continuous beam or ray operation of
.2,408,393
(Fig. 8) are formed in vertical ortransverse
alignment withïthe lugs 58 o-n the slidable mem
`affect tthe foperation; a Ypermanently open lor `off
ber-when in the olf position. Accordingly, lwhen
'.position. when the push-button is -likewise yinca
push-button 51 depresses ¿spring 50, 'in this loff
pable 1of;closing 'the circuit; and another or in
position of the parts, lugs §58 ,on-slide V50 strike
termediate position 'when the push-button may 5 bosses 5l. on the kshell through the gasket, _and
beA operated `in .the usual way to open `or close
cannot >be forced ,- down kfurther to operate the
the .switch for :flashing „or temporarily lighting
member 4_4,5 to close the switch contacts of »the
the lamp.
device.
In :order to accomplish this ina simple, in
In the next position of the thumb-piec-e--the
expensive and convenient manner without un 10 iiashing position-«the parts are lin the position
:dulyrenlarging or thickening the flat and shallow
`ofqFig. 6, where the slida'ble member 59 Yhas been
1svi/itch«housing-the vforward end of switch-oper
pushed -forward 'so Ithat .its >forward free end
ating. '.spring‘ßlt` is provided on the outside with
overlies the ñrst step-'48 on the, end of the switch
»two steps :.48 and 49, which are conveniently
member 45. Depression of the push
formed 'by bending up nvoappropriatelyformed 15 operating
button
now
causes the end of member 5i) to .en
V.side Vwings- from the spring itself,.as seen in Fig.
gage steps 4S on memberf45 :and to press it down
<9.’ .These >stepsware 'adapted to be appropriately
on the gasket and through ‘the _gasket to depress
engaged. by 'the .forward ‘broad end of the mem
and
-close spring lcontact 4 I. Thus in v.this posi
ber.: 50,.,:shown1in Fig. 9,-which suitably slidable
-tion
vof `the parts the push-button 51 vmay be
¿along 'the‘inside of the fiat vtop of the switch
vused to flash the >light Vin the ordinary man
.housing 1.43, as will‘be now described.
^
»
Inet'.
:The pentral raised lportion yof the housing 43
In :the third or permanently on position -of
.isprovided with ya pair of slits‘âl and an inter
thegparts, Vas seen in Fig. ‘1, thumb-piece 51 lhas
itheilightfat Vwhich time the ,push-button cannot
mediate ¿portion which is centrally corrugated,
Vto provide, in effect, two round transverse shoul
'ders yor .-ribsz52. Thumb-piece 53, shown sepa
rately in fFig. '9. 1is `provided Vwith side legs 54,
Ybeen'moved'forward.to-its fullon position. The
`free end of yslidable spring Y5e has been ¿pushed
«one -`on each side, passing respectively down
through the slots 5l in the top of the housing
operate through gasket 42 the vswitch spring 4I
Iandthrough theside notches :55, of the »slidable
ymemberç5€l `>on the inside-of Ithe housing. The
.endszof «these >legsare .bent inwardly on the under
side >of the member 59 in order to hold this'mem
fber againstfthe'runder‘side of the switch housing
and enableit rto be moved therealong by a cor
responding movement ofthe thumb-piece 53.
The three positions -of ‘this .thumb-'piece to
which the-slidable spring member 50 lis moved to
.obtain the off, flash and on positions »of oper
ation «of the device are deñnitely located by the
.angularior ‘il-shaped leaf spring 55 on the in
side of the thumb-piece, as shown, the »central
point or line of which rides over the ribs 52 as
the vthumb-piece is forcibly moved in either -di
.rection and causes said thumb-piece to'assume
over onto ithehigher step 49 of switch-actuating
member 45, and the latter has been depressed to
vto close «the circuit. This entire movementiof
the end of spring 4S lis brought about by push
ing V"the end of spring-59 between the raised step
49 on member Y4t and a lugor depression-62 on
the inside of the vhousing formed preferably by
35 indenting the rim of the raised part of the hous
ing, as indicated in Fig. 9. This lug or indenta- Y
tion »52 does .not interfere with the normal rise
of the free end -of spring46,since the two wings
constituting the said steps are able to straddle
40 the samerin the ,uppermost position of the mem
ber 46. The broad portion of the-end of >‘mem
»ber `50 bridges the two -wings forming the steps
when pushed forward yto -contact therewith.
jFrom the foregoing vdescription it 'will :be ob
gp. en served that the unique type of switch structure
disclosed :herein Contemplatesthe use of a hous
and come to rrestiin one of the three positions,
inghaving a flanged rim adapted to be clamped
as -shown lin Figs. 5, 6 and '1, unless forcibly
upon-a seatdefined-by ythe outer and inner beads
moved therefrom.
441and‘45,
the lflanged rrim 4being held between
-Afpush-‘button `Y51 îis mounted in the housing
'43, as shown, over the forward portion of slid 50 these beads with gasket 42 compressed between
the-rim and seat and the forward end of the
.able spring r50 which tends vto keep the button
in place, the 'ñangeof the vbutton normally seat
ing in -the raised ring of the housing.
In the off position of ’the'parts as shown 1in
Fig. 5, the‘thumb-piece 53 is in’its rear lposition.
-The forward end ofthe slidable member 59 lies
lrim-»pressing against the outer edge of the ‘gas
ket, which -may be turned `upwardly to .lie be
tween >the _forward end fof the j rim and the
vinside Vface of Vouter Vrib 44. Forming a seat
>of 'this character may be omitted `as a feature
of >the switch structure, when so desired, but
it novelly assists in the assembly-of the switch
Vof the 'switch-pressingmember 45. Ordinarily,
structure upon the side of casing Ill and assures
the depression ofthe push-'button in this posi
,tion of the parts would not be sufficient to cause 60 a water-tight Vfit when the -switch structure .is
riveted in place. The inside rib 45 will `of course,
the end of the member 5o to press down on the
have a -cutaway portion where rmember 46 ex
`member 46 enough to close thc-switchcontact ¿4l
.tendsforwardly fromrivet 41 as shown in Fig. 6.
in the 'recess under the gasket. But to -insure
Forming `a recess in ythe wall-of the barrel of a
against such a closure of the switch -by la forced
ñashlight enables using a switchstructure that
depression >of the `push-button, lugs 58 on the
hugs .closely Ato the barrel, and also disposing
lower ‘side of ‘the‘inember väilnear its outer edges
switch parts in compact relationin this structure.
are formed, preferably by striking them up from
This
compactness is further made possible by
the material of the member. These lugs 58 are
these switch parts and their arrangement, the
‘far 'enough apart to `straddle the reduced end 59
(Fig. 9) of member 45, and are in advance of 70 latter further providing positive operation and
occupying >but minimum space. In a device of
>shoulders 60 thereof, so thatthe member 4.6 Ais
the type described, which requires simplicity and
not depressed thereby. Then, on the shell >or
minimum cost of production, .novelty resides in
casing l0 adjacent the groove 38 ’for the `switch
using aspring -contactmember engaging one vof
spring 4l .and Vin advance of the shoulders 60
.the
contacts .serving
_battery 'terminals and
15
V(Fig.v 9) on member N¢liì,.slight1y raised bosses 6|
:in the rear of "the steps 48 and 49 on the Aend
2,408,393
l10
positioned over the others of these contacts so
that it may be pressed into circuit closing en
gagement therewith by a switch pressing mem
ber operable by a slidable spring member. The
switch pressing member is disposed between the
spring contact and the slidable spring member,
and it acts cojointly with the slidable spring
member tc eflect the closing of the circuit, either
overlying said recess and said contacts, a switch
housing over said recess and gasket and clamping
the gasket to the casing in watertight relation
around the recess, and switch contact operating
mechanisms connected with said switch housing
to operate said contacts through the flexible
ing a waterproof gasketed switch, without de
parting from accepted sizes and features of con
said conductors being located in close proximity
gasket.
5. In a device of the class described, a water
by a flashing or full on position, with a minimum
proof casing, conductors in said casing arranged
movement of the parts.
10 for electrical connection with opposite terminals
Thus a waterproof flashlight is provided hav
struction an `doperation and in which the gasket
and engaging parts operate by transverse pres
sure, whereby wear on the gasket is minimized
and the switch contacts are protected against
dampness.
Having thus described the invention and the
best manner now known for carrying same into
effect, what is claimed and desired to be secured
by Letters Patent is:
1. In a device of the class described, a water
proof casing, electric conductors therein arranged
for connection with opposite terminals of a source
of current supply housed in said casing and having
portions in close proximity with each other, and
switching means including contacts to make and
of a source of current supply, two of the ends of
to establish a circuit making and breaking rela
tion therebetween, the exterior wall of the casing
15.y having a shallow recess opposite said ends, nor
mally open switch contacts in said recess con
nected respectively through the bottom of the
recess with said ends, a Waterproof ñexible sheet
of material covering said recess and switch con
, tacts therein, a housing over said sheet and recess
and contacts having an edge flange clamping the
ñexible sheet as a gasket to the casing with a
watertight connection, and operating means
within the housing to operate said switch con
tacts in the recess by pressure through the flex
ible sheet to make and break the circuit through
said contacts and conductors.
6. In a device of the class described, a water
break the circuit between said portions said con
proof casing, conductors in said casing arranged
tacts being exposed externally of said casing, a 30 for electrical connection with opposite terminals
flexible waterproof layer overlying said contacts
of a source of current supply, two of the ends of
and in waterproof relation with said casing, and
said conductors being located in close proximity
operating mechanism on the exterior of the casing
to establish a circuit making and 'breaking rela
to operate said contacts by pressure through said
tion therebetween, the wall of the casing adja
flexible layer.
cent said ends being recessed on the exterior,
2. In a device of the class described, a water
rivets passing through said ends into the bottom
proof casing, conductors in said casing arranged
of the recess and securing the conductors to the
for electrical connection with opposite terminals
casing, a contact spring in the recess secured at
of a source of current supply, two of the ends of
one end by one of said rivets and overlying but
said conductors being located in close proximity 40 normally out of contact with the other of said
to establish a circuit making and breaking rela
rivets but adapted to be brought into contact
tion therebetween, contacts in electrical relation
therewith to close the circuit therethrough, a flex
with said conductor ends and exposed at the out
ible waterproof gasket sheet overlying said recess
side of said casing, a ñexible waterproof gasket
and contact spring and overlapping the edges of
overlying said contacts and in waterproof rela 45 the recess, a switch housing overlying said gasket
tion with said casing, and switch operating mech
and clamping the same at the edges to the casing
anism overlying said gasket to operate said con
with a watertight connection, and manually oper
tacts by pressure transmitted through the gas
ated mechanism in the housing and over the con
ket to make and break the circuit through the
tact spring with the gasket between to operate
contacts on the under side of the gasket.
50 said contact spring to make and break the circuit
through the said conductors.
3. In a device of the class described, a water
proof casing, conductors in said casing arranged
for electrical connection with opposite terminals
of a source of current supply, two of the ends of
’7. In a device of the class described, a water
proof casing, conductors in said casing arranged
for electrical connection with opposite terminals
said conductors ‘being located in close proximity 55 of a source of current supply, two of the ends of
to establish a circuit making and breaking rela
said conductors ‘being located in close proximity
tion therebetween, contacts in electrical relation
to establish a circuit making and breaking rela
with said conductor ends exposed to the outside
tion therebetween, contacts in electrical relation
of said casing, a flexible waterproof gasket sheet
with said conductor ends exposed to the outside
overlying said contacts, a switch housing overlying 60 of said casing, a switch housing over said contacts
said gasket sheet and clamping it in watertight
having a peripheral flange, raised beads on the
relation at the edges to said casing, and contact
casing along the inner and outer edges of said
operating means associated with the switch hous
flange, a sheet of flexible waterproof material
ing to operate said contacts by pressure thereon
overlying said contacts and extending to said
exerted through the said ñexible gasket.
outer bead and clamped at the edge portion fo
4. In a device of the class described, a water
the casing between the said beads by the said
proof casing, conductors in said casing arranged
flange in watertight relation, and switch oper
for electrical connection with opposite terminals
ating means beneath the housing outside the
of a source of current supply, two of the ends of
said sheet to operate said contacts inside the sheet
said conductors being located in close proximity 70 to control the circuit therethrough,
to establishv a circuit making and breaking rela
8. In a device of the class described, a water
tion therebetween, the casing having a recess in
proof casing having conductors therein for elec
its outer face opposite said conductor ends, switch
trical connection with the opposite poles of' a
contacts in said recess in electrical connection
source of current supply, said conductors having
with said ends, a :flexible waterproof gasket sheet 75 portions in close proximity within the casing,
2,408,393
'Il
contacts connected with said portions exposed't'o
the exterior of the casing, a sheet ofñexible wa
terproof material overlying said exposed contacts,
a switch housing over said sheet having a clamp
ing flange conforming to the non-planular ccn
tour of the casing to clamp said sheet at its edge
in watertight relation to the casing, and switch
operating means in said housing to operate said
conta-cts through the sheet to make and break
10
the circuit through said conductors.
to effect' depression also of’ said slidable 'member
when ina position to engageA one of said' protru
sions, the other protrusion when engaged by'said
slidable member actuating said depressible »mem
ber to eilect a. constant circuit closing» relation
between said spring-contact memberA and said
other contact.
12. Switch` mechanism for a flashlight com
prising, in combination, two contacts, a spring
contact member secured to» one of said` contacts
andY extending to -a-posi't'ion" over the other -con
9. In a device of the class described, a wa
tact, a depressible member secured at one of its
terproof casing, conductors in said casing ar
ends to have itsy opposite end in av position to
ranged for electrical connection with opposite
press
against said spring contact member and to
terminals of a source of current supply, two of
the ends of said conductors .being located in close 15 move the latter memberv into» engagement w-ith
saidï other contact, a manually operable*- 'mem
proximity to establish a circuit making and break-V
ber
adapted to have one of three positions, means
ing relation therebetween, contacts in electrical
for preventing said manually operable member
relation with said conductor ends exposed to the
from actuating said depressiblemember when in
outside of said casing, a normally open» spring
contact to
close when depressed - the circuit 20l one off its positions and means to actuatev said
through» said exposed contacts, a switch housing
depressi-ble member to-eiîect either of two move
ments by the movement of saidl manually oper
able member to the other two of its saidV three
positions, said movements of said depressible
piece on the outside» thereof, a 'push-bitten» in
the housing` adjacent the thumb-piece, a metal 25 member effecting etiher momentary or constant
on «the casing over said contacts, a three-position
slide inside the housing ope-rated by a thumb
strip secured at one end to said- casingl and eX
engagement by said spring contact member with
tending under said push-button» and slide and
arranged at its- free end' when depressed to op
erate and close» said spring contact, ‘said slide
said other contact.
conductors in said casing arranged for electrical
connection with opposite terminals of? -a source
of- current supply, two endsl of' said conductors
being located in close proximity to establish a
circuit making and breaking relation therebe
tween, contact-s in electricalv relation with-said
conductor ends andV having portionsV extending
through the wall-of saidl casing, a spring contact 45
able member when- actuated from engaging said
depressible member, the other two points of en
13. Switch mechanism for a flashlight com
prising, in combination, a switch housing, av
spring contact member, a depressible member
serving in the» off position toprevent loperation of
and a slidable member; said slidable member be
said strip bythe push-button, in» another posi
ing arranged to engage" and depress said--depres
tion to permit its ope 1ation by the push-button
sible member into engagement with said spring
to intermittently open and'clo'se'the- circuit, and
contact member whereby` to move the latter: to
in a third position t'ofoper‘ate the-spring contact
to close the circuit> independently vof the push 35 circuit closing position, and a plurality of points
of engagement for said slidable member, one of
button.
said points vof engagement preventing said slid
10. Ina device of the class described, a casing,
member secured’ to one of said 'conductor con
gagement being at different-levels and disposed
upon said> depressibleI member, one of said two
points of engagement causing momentary en
gagement only of said spring contact in circuit
closing position when said slidable member isA in
a position 'and' actuated to engage said point of
engagement, the otherl of said two pointsv of en-l
gagementY causing a constant circuit closing vposi
tion of said spring contact when said slidable
tacts yand extending over the-other of said con
ductor contacts, a depressible member secured at
member is moved to a position to engage said
one Yof its ends' to vhave itsl opposite> end in a po
sition to press against said4 spring contact ‘mem 50 last point of engagement.
14. Switch mechanism for a flashlight com
ber and to move the latter into engagement with
prising, in combi-nation, a switch housing, a
saidV other conductor contact, and a sliadable
spring contact member, a depressible member andA
member adapted~ tobemoved-to one of three- 4po
a slidable member, said lslidable member being
sitions, means »for preventing said slidable'mem
arranged to engage and> depress said: 'depressible
ber from »engaging «andactua-t-ing said- depressible
member into engagement with said spring 'con'
member into-a position effecting an engagement
tact member whereby to move the latter to cir
by said spring contact member with said other
cuit closing position, abutment means on said
Contact member, and meansl to cause said »sl-id
depressible member, saidY abutment means hav'
able member to effect either of- t-wo movements- of
said,` depressible member, e'fìecting either momen 60 ing two engagement levels for said slidable mem
ber., one -of said engagement levels requiring said
tary or distant engagement by said spring con
slidable member to bedepressed to engage the.
tact member with said other conductor contact.
same and depressV said depressible member into
il. -Switch mechanism for- a flashlight com
circuit closing position, and means on said switch
prising in combination, two contacts, a spring
housing to depress 'Said slidable member downV
Contact member in fixed electrical relation with
and upon the 'other engagement level when said
one of said contacts and extending to a position
slidabley member is moved toward said other en
over the other contact, a depressible member,
gagement level whereby said depressi'ble member
and a` slidable member, said meinbersbeing dis
is depressed to actuate~ said spring contact mem
posed one above the other, said slidable mem
ber having a plurality of positions and being mov 70 ber to circuit closing position.
15. Switch mechanism for a flashlight com
able to eiîect actuation of said depressible mem
prising, in combination, a spring contact member
ber wherebyV to move said spring contact mem
adapted to be secured at or near one end to the
ber into circuit closing position with said other
barrel of the flashlight, a manually slidable mem
contact, protrusions on said depressible member
engageable by said slidable member, and -me'ans 75 ber above said spring contact memberfor ef-v
2,408,393
I
13
fecting a depressing movement of said spring
contact member` to circuit closing position, and a
housing for enclosing said spring contact member
and said slidable member.
16. In a device of the class described, a casing,
spaced contacts carried by said casing, a spring
14
member for effecting a depressing movement of
said contact member to circuit closing position,
and a housing for enclosing said contact member
and said manually operable member.
19. Switch mechanism for a liashlight com
prising, in combination, a contact member adapt
contact member in iìxed relation with one of said
ed to be secured to the barrel of the flashlight,
contacts for closing an electrical circuit by being
a manually operable member above said contact
depressed into engagement with the other con
member for effecting a depressing movement of
tact, a well in said casing, said spring contact l0 said contact member to circuit closing position,
being disposed in said well, a switch housing hav
a flexible waterproof membrane disposed between
ing an outwardly extending iiange about its base,
said contact member and said manually operable
a seat upon said casing for receiving said flange,
member, and a housing for enclosing said mem
said seat being disposed about said well, a gasket
brane and both said members, said housing se
between said seat and said ñange, and a manually 15 Acuring said membrane to said barrel whereby to
movable member within said switch housing for
seal said contact member in water-tight relation
eiîecting operation of said spring contact.
between said membrane and said barrel.
17. In a device of the class described, a casing,
20. Switch mechanism for a iiashlight com
a Well in said casing, a switch structure adapted
prising, in combination, a contact member adapt
to be mounted upon said casing, the parts of 20 ed to be secured to the barrel of the flashlight,
said switch structure including a circuit closing
a manually operable member above said contact
member disposed in said well, a manually oper
member for effecting a depressing movement of
able member and a housing for the same, a ñange
said contact member to circuit closing position,
formed about the base of said housing, and spaced
a housing for enclosing said contact member and
upstanding beads on said casing about said well 25 said manually operable member, and a flexible
adapted to form a seat to receive said housing
waterproof membrane disposed within said hous
flange.
18. Switch mechanism for a flashlight com
prising, in combination, a, contact member adapt
ed to be secured to the barrel of the ñashlight, 30
a manually operable member above said contact
ing to seal said contact member in water-tight
relation.
JOSEPH A. GITS.
JULES P. GITS.
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