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Патент USA US2410366

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Oct. 29, 1946.
H‘, J, SAUER
2,410,366
LAMP
Filed Api‘il 1'7‚ 1944
INVENTOR
HEä>IR [l SAUER
ATTORNEY
Patentecl Oct. 29, 1946
mm
UNHTED STÄT'ES PATENT OFFICE
Henry J’. Sauer, Fair?eld, Conn., assignor t0 'l‘he
Kilborn-Sauer Company, Fair?eld, Conn., ‘a
corporation cf Connecticut
Appäication April_1'2, 1944, Serial N0. 531,342
6' Claims.
1
'I‘he present invention relates 130 an improve
ment in lamps, especially for automobile use. At
present, a, 1a1’ge majority of automobile lamps
employ a so-called “Sea1ed Beam” type 0f light
ing unit wherein the i‘e?ector and lens constitute
( C1. 240-415)
2
sponding parts throughout the several ?gures of
the drawing.
-
>
Referring 130 the drawing, and. more particu
larly to Figs. 1 to 4 thereof, the 1arnp accorcling
‘so the illustrated exemplary embodiment of the
invention shown therein, cornprises a, ca‚sing I0,
preferably formed of sheet metal provided at
a sealed container for the lamp ?lament. In
mounting such unit in 24 casing‘ provision must
be made for supporting it Within the casing and
1’ts fonward open sid.e with a circumferential
removabl-y retaining it in place, and for this
rim part H, integrally connected to the body
purpose the usual ]amp casing consists 0f a. body 10 0-f the casing by an inwardly projecting abut
having mea‚ns Within it for engaging the real‘
ment flange E2, of U-shape in cross-section, and
Ward surface of the peripheral ?ange of the unit
provided am its forward edge with an inturned
anti a deta‚chable ?anged rim engaged upon the
retaining ?ange I3. At its bottom point the
forward. open side of the body to engage over
rim part H is provided. With a relatively wide
the forward side Qf the flange of the unit to 15 split I4, extending from its front surface to a
retain it in place.
point spaced slightly forwardly of the abutment
It is an object of the present invention to
?ange I2 where it meets the medial point 0f a
provide a lamp casing, especially adapted for
circumferential cut I5 extending upwardly ab
receiving a. “Sealed Beam” type of lighting unit,
each sich; of the rim part to points spaced‚ ‘a
vvherein the supporting and retaining means for 20 shox*t distance belovv the central diametric plane
the unit constitute an integral or inseparable
of the lamp, this cut being parallel 170 a.nd spaced
part of the body of the casing, thus providing
slightly in front of zähe abutment ?ange l2.
a structure. which is relatively economical 130
Thus the portion of the rim part de?ned by the
manufacture and which greatly facilitates the
cut ä5 constitutes a ?exibly movable par1; which
assembl'y of the lighting unit and its removal 25 may be moved outwardly er inwardly With re
a‚nd replacement when necessary.
spect 130 its normal concentriu relation to the
Another object is ‘so pI'OVide a casing structure
rim part.
.
ad'apted to tightly retain the lighting. unitthrough
Rigidly secured to the outer peripheral sur
adjustablg pressure applied thereon, so that. rela
face of the opposed portions of 1;he rim at each
tive l‘ooseness between the unit. and the casing is 30 side of the split ‘H3 is a pair of tubular brackets
effectually eli'minated.
I6, secured by rivets H s„nd engaged by a tight
With- the above and other objects in view,
ening screw I8 having its head bearing upon the
em‘bodiments of the invention are shown in the
end cf one 0f the brackets a‚nd engaged with a,
accompanying drawing, and these embodiments
nut I 9 bearing upon the end of the other bracket.
Will be hereinafter more. fully described. With
By tightening of this screw the ?exibly movable
reference thereto, and the invention will be ?nally
part of the rim may Ibe drawn inwa‚rdly‚ ‘ehe
pointed out in- the clairns.
width
of the split being suf?cient ‘so permit this
In the drawing:
action to a, substantial degree.
Fig. 1 is a front elevation 0f an automobile
.
Upon the inner surface of the casing, rear
lamp, according to one exemplary ernbodiment 40 wardly of the abutment ?ange I2, there is pro
of the invention.
vided a pair cf. spaced retaining lugs 2€)‚ secured
Fig. 2 is a side elevatic>n‚ partially in vertical
by rivets 2l and adapted to recei-ve the position
section.
ing 1ug provided unon the lamp unit, as will
Fig. 3 is a, front elevation- of the lamp casing
presently more ful1y appear.
with the lamp unit removed.
45
'I'he “Sea1ed Beam” 1amp unit consists of a
Fig. 4 i's a horizontal sectional view,. taken
re?ector part 22 and a» 1ens part
sea1ed to
along the line 4-4 of Fig. 3.
Fißr. 5 is- a side elevatiom partially in vertical
section, of a 1amp casing a‚ccording ‘so a modi?ed
gether 150 constitute a sea1ed container f0r 1;he
1amp ?lament, a peripheral ?ange 241 bei-ng pro
Vided bebween the re?ect-or and lens parts hav
form of the inventi0n, the lighting uni? being 50
ing ab it's rearward sic1e an annular shouldered
r'emoved.
recess
25 for ?tting engagemen-t against the
Fig. 6 is a, fragmentary sectional view showing
the ca.sing of the invention with a 1ens and re
?ector cf separable type engaged therein.
Similar reference characters indicate corre
abutment means within 1:he lamp casing, and
at its forward side an annular shouldered recess
25 for retaining engagement therewith cf the
Inwardly of the recess 25
55 usua1 retaining rim.
3
there is provided a. positioning lug 2'I, for the
purp0se cf insuring the proper positioning of the
unit in the casing and to prevent it from rela
tive turning therein. The re?ect0r portion is
provided centrally with the ?lament ‘Support 23 to
which the conductor wires 29 are connected in the
usual manner.
4
?ange 35 of the 1ens being engaged and retained
by the retaining ?ange I3.
I have illustrated and described preferred and
satisfacbory embodiments of the invention, laut
it Will be obvious that changes may be made
therein, within the spirit and sC0pe thereof as de
?ned in I3he appended claims.
'
Having thus described by invention, what is
According t0 the invention the inside diame’ßer
elaimed
a.nd desired I:o be secured by Letters Pat
of the rim portion II is somewhat 1arger than
the diameter of the ?ange 24 015 the lamp unit, 10 ent1. i‘s:
In a lamp, a casing comprising a body part
so that in installing the lamp unit it may be
and a circumferen’cial rim part; permanent-‚ly can
readily inserted into engagement; within the rim
‚nected together, inwardly projecting abutment
portion II, either in the concentric relation 0f
meang permanently connected to said casing ab
the ?exibly movable rim part, as shown in Fig.
3, er with the ?exibly movable rim part forced 15 a point within seid casing between said body
part and said rim part, a retaining ?ange at the
outwardly to a s1ight degree. II‘. is pointecl ouI:
forward edge of said rim part, said rim part in
in this connection I:hat the interna1 diameter of
cluding a ?exibly movable portion extending
the retaining ?ange I3 cf the rim portion, in its
partially about its cireumference de?ned by a
concentric relation, as shown in Fig. 3, may be
circumferential cut between said abutment
20
equa1 I70 01‘ slightly 1ess than the diameter of the
means and said retaining ?ange, there being a
?ange 24 of I;he lighting unit. _Upon engage
transverse split extending forwardly from ‘said
ment of the lighting unit within the easing, in
seating engagemeni; With the abutment ?ange I2,
cireumferential cut through said retaining ?ange,
and fastening means eonneeted between the op
the fastening screw I8 is tightened, causing the
luwer ?exibly movable sp1it portion of the rim 25 posed edg€s of said transverse split adapted to
contract said ?exible rim portion with respect
a1ong the cut I5 to be drawn inwardly am‘: of its
to
its normal open relation relatively 120 said rim
normal concentric relation and into I:ight en
part and whereby a lens inserted Within said rim
gagement With the lower side of the ?ange 24,
porti0n in 0pp0sed relation 1:0 said abutment
ab ‘Ehe same I:ime pressing the upper side of the
?a‚nge ?rmly into engagement with the': upper 30 means is retaineä therein through contraction cf
said ?exibly movable rim portion.
.
side of the rim II. The lower portion of the rim
2. In a 1amp‚ a casing comprising a body part
at each side of the sp1it I4 is raised slight1y a?ccve
and a circumferential ‘rim part permanently con
the peripheral outline 0f the casing rearwardly
nected together, a circumferential inwardly pro
‘of the cut I5, as shown c1ear1y in Fig. 2, ’ßhe
?ange of I;he 1amp unit being ab the same time 35 jecting a‚butment ?ange permanently eonnected
to said casing ab a point within said casing be
slid upwardly upon the abutment ?ange I2. In
tween said body part and said rim part‚ a reIsain
this manner the lamp unit is ?rm1y secured
ing ?ange a1; the forward edge of seid rim part,
within I:he casing, the tightening of the fasten—
said rim part including a ?exibly movable por-‚
ing screw I8 causing the rim to be drawn in to
the point where 112 securely clamps abou1; the 40 tion extending partially about its cimumference
de?ned by a circumferential cut betweeu said
?ange 0f the unit. II: Will be understood that the
abutment ?ange and said retaining ?ange, there
diameter of the rim and its retaining ?ange rel
' being a transverse sp1it extending forwardly from
ative 120 the diameter cf the. 1amp uhit may be
a point intermediate the ends cf said circumfer
varied I:o bring about any desired variation in .
entia1
cut through seid retaining ?ange, anal fas
the degree of expansion anal contraction of the
tening means connected between the op‘posed
?exib1y movable rim portion ‘so permit the in
edges of said transverse split adapted 150 contract
sertion and retaining of 13he 1amp unit.
said ?exible rim portion with respect 110 its nor
In Fig. 5, there is shown a modi?ed form cf the
mal open re1ation relatively tt> said rim part and
invenjzion in which a rim partion I Ia is separately
whereby a 1ens inserted WiI:hin said rim portion in
formed from the casing HP, the rim portion be
opposed relation to said. abutment ?ange is re
ing provided rearwardly of I7he abutment ?ange
tained therein through contraction of said ?ex
I2“ With an inwardly o?set 1ip 33 ?tted within
ib1y movab1e rim portion.
the forward end of I:he casing III and inseparably
3. In a 1amp, a casing comprising a body part
secured thereto by rivets 3 I , or by other suitable
and. a circumferential rim part‚ a circumferential
mean__s such as ‘5130I3 welding. A pair of retaininwardly projecting abutmen’r, ?ange integrally
ing lugs 208 is 1anced fr0m I;he 1ip 30 and bent
connecting said body part and said rim part, a
inwardly therefrom to‚provide positioning and
retza‚ining ?ange ab the forward edge of said rim
retaining means f0r the lug 21 of the lamp unit.
part, said rim part including a ?exibly movable
'I‘his form of the invention permits ‘ehe casing 150
be formea from a di?erent material than the rirn‚ 60 portion extending partially about its circumfer
ence de?ned by a circumferential cut between
forjnstance the casing may be of plastic or of
said abutment ?ange and said retaining ?ange,
paintea metal, while the rim is 0f chromeqalated
there being a transverse split extending for
mtatal. Its cooperation With the lamp un‘it is the
wardly from saic'l circumferential cut through
same as in the ?rst embodiment.
In Fig. 6 there is shown the manner in which 65 said retaining ?ange, and means adapted 130 C011
tract said ?exible rim portion with respect to its
the separable type of re?ector 32 and 1ens 33
normal open relation relatively to said rim part
may be adapted for cooperation with the casing
and whereby a lens inserted within said rim por
of the invention. The re?ector is pI‘OI/ided with
tion
in opposed relation to said abutment ?ange
an outwardly projecting rim ?ange 34 ?tted
against the rim ?ange 35 cf the lens, the two 70 is retained therein through contraction of said
rim ?anges being engaged within the rim portion
II of the casing in the same manner as the en
gagement 01? the ?ange 24 of the “Sea1ed Beam”
type of lamp unit, the ?ange 34 of I;he re?ector
seating against the abutment ?ange I2 and the
?exibly movable rim portion.
4. In a lamp, a easing comprising a body part,
having a forward open end, a circumferential rim
part inserted in said open end and secured thereto
and including an inwardiy disposed circumfeten
2,410,366
5
tial inwardly projecting abutment ?ange and a
retaining ?ange at its forward edge, said rim part
including a. flexibly movable portion extending
partially about its circumference de?ned by a
circumferential cut between said abutment flange
and said retaining ?ange‚ there being a trans
verse split extending forwardly from said circum
ferentia‚l cut through said retaining ?ange, and
means adapted to contract said ?exible rim por
tion with respect 110 its normal open relation rel
atively to said rim part and whereby a, lens in
serted within said rim portion in opposed rela
tion 110 said abutment ?ange is retained therein
through contraction of said ?exibly mova.ble rim
portion.
5. In a 1amp, the combination with a 1amp unit
including a lens and a, re?ector having a periph
era1 ?ange, of a casing comprising a body Part
and a, circumferential rim part permanently com
‘
6
relatively to said rim part and. whereby the ?ange
of said. lamp unit inserted within said rim portion
in opposed relatiou to said abutment ?ange is
retained therein through contraction of said ?ex
ibly movable rim portion.
6. In a, lamp, the combinatiou with a lamp unit
including a, lens and a re?ector having a pe
ripheral ?ange, a casing comprising a body Part
anal a circumferential rim part permanently con
10 nected together, a, circumferential inwardly pro
jecting abutment ?ange permanently connected
130 said casing a1; a, point within said casing be
tween said body part anal said rim part, a re
taining flange at the forwa‚rd edge of said rim
15 part, said rim part including a ?exibly movable
portion extending partially about its circumfer
ence de?ned by a circumferential cut between
said abutment ?a.nge and said retaining ?ange,
there being a. transverse split extending for
nected together, inwardly projecting abutment 20 wardly from a‚-point intermediate the ends of
means permanently connected to said casing at
said circumferential cut through_said retaining
a point Within said casing between said body part
flange,
and fastening means connected between
and said rim part, a, retaining ?ange a.t the for
the opposed edges of said transverse split adapted
ward edge of said. rim part, said rim part in
to contract said ?exible rim portion with respect
cluding a ?exibly mova‚ble portion extending par
25 to its normal open relation relatively to sa.id rim
tial1y about its circumference de?ned by a, cir
part and whereby the ?ange of said lamp unit
cumferential cut between said abutment means
inserted within sa.id rim portion in opposed re
and said retaining ?ange, there being a trans
lation 1:0 said abutment ?ange is retained therein
verse split extending forwardly from said cir
through contraction of said ?exibly movable rim
cumferential cut through said retaining ?ange‚
portion.
and means adapted. to contra‚ct sa.id ?exible rim 30
HENRY J. SAUER.
portiom with respect to its normal open relation
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