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Патент USA US2105575

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Ja?. 18, 1938.
o, N, WISWELL,
2,105,575
CAN OPENER AND DISPENSING DEVICE
0
jib-$.01 .
Filed July 14, 1934
2 Sheets-Sheet J."
Jan- 18, 1938.
o. N. WISWELL
2,105,575
CAN OPENER AND DZISPENSING DEVICE
Filed July 14, 1934
A
2 Sheets-Sheet 2
'
Patented Jan. 18, 1938
2,105,575
UNITED STATES PATENT OFFICE
2,105,575
CAN OPENER AND DISPENSING DEVICE
Ozro N. Wiswell, Los Angeles, Calif., assignor to
Swingspout Measure Company, Los Angeles,
alif., a corporation of California
'
Application July 14, 1934, Serial'No. 735,260
12 Claims. (Cl. 221-23)
This invention relates to a device for dispensing
canned ?uids and relates more particularly to a
device for opening sealed containers or cans and
for pouring or dispensing the contents therefrom.
It is a general object of this invention to provide
a simple, practical and improved device for open
ing cans and for facilitating the pouring or drain
ing of the contents from the cans.
Lubricating oils, etc., are being marketed in
10 sealed cans to prevent them from being adulter
ated or substituted for by inferior products.
Various forms of can opening devices have been
introduced for opening the cans of lubricating
oils and for facilitating the dispensing of their
contents. The can opening devices of this char
acter now in use perforate or form openings in
either the upper or lower ends of the cans and
leave the other parts of the cans whole and un
mutilated. Unscrupulous dealers
and others
have removed the mutilated ends of cans opened
by such devices and after re?lling the cans with
cheap or inferior products have replaced the can
ends and again marketed the re?lled cans, repre
senting that they contained the products de
scribed by the original labels.
An object of this invention is to provide a
device for opening cans that cuts openings in both
and end wall and- a side wall of a can to posi
tively render the can un?t for re?lling or re-use.
Another object of the invention is to provide a
device that cuts a large unobstructed pouring
opening in an end of a can upon being pressed or
forced on the can, then forms an effective spout
for pouring the contents from the can,- and that
33 operates to automatically cut a long mutilating
slit or opening in the side wall of the can upon
being disengaged from the can.
Another object of theiinvention is to provide a
can opening and dispensing device of the char
40 acter mentioned including a tubular spout shaped
and formed to constitute a convenient handle
for facilitating the handling and operating of the
device, said spout being adapted to being in
serted in the oil ?lling pipe of an engine, or the
- 5 like, to support the device and can thereon as the
contents of the can are being drained, into the
crank case of the engine. The spout of the de
vice of this invention is'longitudinally curved to
comfortably ?t the hand and is provided with
finger engaging ribs to resemble what is com~
monly known as a pistol grip.
Another object of the invention is to provide a
can opening device of the character mentioned
that includes a simple and particularly effective
55 cutter for cutting the pouring or dispensing
opening in the can, said cutter being ?rmly
braced and held rigid with respect to the. spout
and guide and being attached to the spout so
that it may be easily removed for replacement.
Another object of the invention is to provide Ol
a device of the character mentioned embodying
a novel and improved means for punching or
forming an opening in an end of a can for ad
mitting atmospheric pressure to facilitate or ac
celerate the pouring of the contents from the can. 10
It is another object of the invention to provide
a can opener and dispensing device of the char
acter mentioned that tightly seals with the wall
of the can around the opening formed by the
principal cutter to prevent the leakage of the 15
?uid and prevent soiling of the can and device
during the dispensing or pouring operation.
Another object of the invention is to provide
a device of the character mentioned thatembodies
a novel mutilating cutter that is inoperative dur
ing the forcing of the principal cutter through
the end wall of the can to form the pouring open~
ing, that aids in dependably retaining the device
on the can when the can is inverted to dispense its
contents and that automatically cuts a long slit
or opening in the side wall of the can when the
device is removed from the emptied can.
A further object of the invention is to provide
an improved can opener and ?uid dispensing de
vice that is simple and inexpensive and that com
prises a simple integral .body member constitut
ing a spout, a handle and a guide for guiding the
cutter into the can wall.
Other objects and features of the invention will
be better and fully understood from the following
detailed description of typical preferred forms of
the invention, throughout which description ref
erence may be had to the accompanying draw
ings, in which:
Fig. 1 is a side elevation of the device of this
invention illustrating the punch cutting an air
vent in the upper end of the can.
Fig. 2 is an
enlarged longitudinal detailed sectional view of
the device after having been forced downwardly
on the can to actuate the principal cutter
through the upper wall of the can. Fig. 3 is a
transverse detailed sectional view taken as indi
cated by line 3-3 on Fig. 1. Fig. 4 is a frag
mentary elevation view of the inner side or the
device taken substantially as indicated by line 50
4-4 of Fig. 1. Fig. 5 is a fragmentary longi
tudinal sectional view of the lower portion of the
device showing the mutilating cutter in oper
ation during the removal of the device from the
can. Fig. 6 is a longitudinal detailed sectional
2,105,575
2
4 view of the device illustrating another type of
can multilating cutter. Fig. 7 is a transverse
detailed sectional view taken as indicated by line
'I-—‘I on Fig. 6. Fig. 8 is a view similiar to Fig. 6
illustrating still another form of mutilating
cutter, and Fig. 9 is a transverse detailed sectional
view taken as indicated by line 9—9 on Fig. '8.
The form of the present invention illustrated in
Figs. 1 to 5, inclusive, of the drawings, includes
10 generally, a body I0 comprising a spout and han
dle A, and a guide B, a main or principal cutter
II on the body In for forming a pouring opening
in a'can C,‘ a means or cutter I2 on the guide B
for mutilating the side wall W of the can and
15 means I3 for making an air inlet opening in the
end E of the can.
The body I0 carries the two cutters.“ and I2
and therefore constitutes a cutter support or cut
ter supporting member. In the form of the in
20 vention being described the body I0 carries the
means I3 and comprises two main parts, namely
the handle and spout A and the guide B for guid
ing the principal cutter II. The support or
body III may be an integral casting of aluminum
25 or other suitable material. The spout and han
dle A of the body is an elongate tubular part hav
ing a longitudinal opening Ill. The central lon~
gitudinal axis of the spout A is inclined upwardly
and outwardly considering the device in the posi
30 tion illustrated in Fig. 2 of the drawings. The
_ spout A is proportioned to be readily inserted in
the oil ?lling pipe or receiver of the crank case
of an engine.
It is an important feature of the invention that
35 the spout A is shaped and designed to constitute
an effective and convenient handle. The com
bined handle and spout A is preferably longitudi
nally curved and generally cylindrical in its cross
section.
The inner side or surface of the spout A
40 that faces upwardly to some extent, due to the
inclination and curvature of the spout, is prefer
ably roughened or grooved so that the palm of the
hand which engages this surface has less tend
ency to slip. In the particular construction illus
45 trated in the drawings transverse or circumferen
tially extending notches I5 are provided in the
upper surface of the spout A.
The grooves vor
. notches IS in addition to bene?ting the opera
ator’s grip of the spout prevents slipping or tilt
ing of the spout A when it is inserted in the oil
?lling pipe or tube of an engine for the purpose
of draining the oil from the can C. The outer
surface of the spout A which faces downwar y
and outwardly is engaged by the four ?n.»
‘
the
user’s
hand
and
is
provided
with
three
s
55
transverse
I6 are longitudinally
or circumferential
spaced and
ribs
areIS.
related
The to be
parallel while the lower end of the guide is pref»
erably curved asillustrated in the drawings.
The principal cutter II is adapted to be forced
or driven through the end wall E of the can C to
cut a large unobstructed opening through which
the contents of the can may be drained when the
can is tipped or inverted. The cutter II is at
tached to the support or body II] to have its shank
extend into the opening I4 of the spout A and to
have its active portion exposed at the inner side
of the guide B. The principal cutter II is sub
stantially U-shaped in transverse cross section
having spaced substantially parallel side parts I8
and a curved transverse part I9 joining or con
necting the side parts I8. The outer or lower end
of the cutter II is pointed to readily enter or
perforate the can wall E. The longitudinal edges
20 of the side part I8 are inclined and converge
toward a point ZI on the lower end of the trans
verse part I9. The inclination of the edges 20 is
increased adjacent the point 2I and the part I9
is inclined inwardly or away from the guide B
adjacent the point 2| as clearly illustrated in
Figs. 2 and 5 of the drawings. In accordance
with the invention the edges 20 are ?at and sub 25
stantially normal to the adjacent side surfaces
of the parts I8 and I9 so that their outer corners
have an effective shearing action when the cutter
is forced into the can wall E. Further, the flat
normal edges 20 ?atly bear against the tab or 30
flap F cut by the cutter II to positively roll the
?ap back and leave the opening formed by the
cutter entirely unobstructed.
The cutter II is preferably inclined so that its
transverse part I9 is‘ inclined downwardly and
outwardly toward the inner side I‘! of the guide B.
This inclination of the cutter II causes the side
wall W and the bead X of the can to be pinched
or gripped between the cutter part I9 and the
guide B. - The gripping engagement of the cutter 40
II and the guide B with the wall of the can aids
in detachably holding the device on the can when
the can is handled and inverted during the drain
ing of its contents. The point 2I of the cutter I I
may be bevelled or sharpened at its inner side
and is spaced from the guide B to enter the can
wall E adjacent the bead X upon the device being
pressed downwardly on the can. The guide B
engages the exterior of the can to position the
point 2! of the cutter, and as the cutter moves 50
downwardly the guide engages the can wall W to
‘aide the cutter and to cause the cutter to form
unobstructed opening in the end of the
side parts I 8 of the cutter project upwardly 55
li'l’O the spout opening I4 and bear against sub
si’ "nadir flat parallel faces 22 at the mouth of
the opening. This engagement of the cutter parts
ill with the faces 22 prevents lateral movement
or rocking of the cutter relative to the body Ill. 60
The transverse part I9 of the cutter seats against
the wall of the opening I 4 and is slightly curved
to follow the longitudinal curvature of the open
received between the ?ngers of the hand insuring
a firm positive grip on the spout.
The guide B of the body It is provided to en
60
gage the side wall W of the can C to guide the
principal cutter II to form an opening
the
end E that extends inwardly from the peripheral
bead X of the can. The guide B is an elongate ing. The side parts I8 are cut away or cut back
at 23 to allow the curved portion of the part I9 65
65 part projecting or continuing downwardly from [to enter the opening I4 for a considerable dis
the outer lower end portion of the spout A. In
the preferred form of the invention illustrated in tance. A bolt or screw 24 is arranged through
the drawings the guide B is somewhat wider than openings in the spout A and the cutter part I9
the spout A. The inner side I‘! of the guide B is and a nut 25 is threaded on the bolt to attach the
70
cutter II to the body ID.
70 concave to properly slidably engage the cylindri
A lip 26 is provided on the body III to project
cal side wall W of the typical can C. It is to be
understood that the guide B may be shaped to downwardly between the spaced side parts I8 of
adapt the device for opening cans of various sizes the cutter II. The outer side of the lip 26 is
and con?gurations. The opposite vertical edges inclined, being flush with the edges 20. The lip
26 enters the opening formed by the cutter II 75
' of the guide B may be straight and substantially
75
2,105,575
and bears and seals against the ?ap F in the
manner illustrated in Fig. 2 of the drawings. The
side parts l8 of the cutter are ?ared outwardly
adjacent their upper ends to receive the lip 26
and their ?ared portions provide inclined shoul
ders 21. The shoulders 21 bear or wedge against
the side walls of the opening formed in the can
Wall E by the cutter to provide a ?uid tight seal
about the cutter and to aid in retaining the cutter
10 in the opening. The upper side of the lip 26 forms
a rest for theiuser’s thumb when he operates the
device. Shoulders 28 are provided on the side
parts l8 to bear against the edge of the body at
the base of the lip 26. The shoulders 28 receive
3
of teeth 35, and joins the point or the outer end
of the uppermost tooth.
After the contents have been drained from
the can C and it is desired to disengage the de
vice from the can the device is pulled or moved
upwardly to free it from the can. During the
initial portion of this upward movement of the
device relative to the can C the teeth 35 cooperate
with the can wall W to cause the cutter I2 to
pivot in a direction to force or project the abrupt 10
end of the" edge 36 through the wall W. A stop 31
is provided’on the cutter l2 to engage the outer
surface of the guide B to limit pivoting of the
cutter |2 in a position where the edge 36 projects
15 the downward thrusts transmitted from the body
to the cutter II when the device is forced or
downwardly and inwardly and extends through
15
the wall W of the can; This position of the cut
pressed downwardly on the can C to force the cut
ter || through the wall E.
ter I2 is illustrated in Fig. 4 of the drawings.
Suitable openings 29 are'provided in the side
walls of the cutter || adjacent the shoulders
21 to permit the ?uid or oil to drain out from
around the cutter when‘ the can is inverted to
drain its contents through the spout A. With the
cutter H in its fully actuated position the open
during the detachment of the device from the can. 20
In practice it may be preferred to sharpen the
edge 36 on one side only so that the can wall W
is bent inwardly at one side of the cutter l2 and
bent outwardly at the other side of the cutter l2,
while thecutter forms the mutilating slit S. This
formation of the cutting edge 36 makes the cut
ter l2 particularly easy to operate.- The teeth
25 lugs 29 are adjacent the inner side of the can
wall E and allow the free drainage of ?uid from
around the cutter.
An air~ vent or opening 9 is
provided in the lip 26 to communicate with the
passage l4 of the spout. The opening 9 is posi
30
tioned to be immediately outside of the can wall
E when the cutter is in its fully operated posi
tion and admits air to the passage | 4 and the in
terior of the can to facilitate the pouring of the
contents of the can. Depressions or recesses 30
35 are provided in the body It] around the shank of
the cutter where it enters the opening l4 to re
ceive and trap any liquid that may leak from
around the cutter during the pouring of the con
tents from the can C. In assembling the cutter
H on the body |0 its shank is forced or pressed
in the opening l4 so that the curved part I 9 is
sprung into position in the opening l4. The bolt
24 and nut 25 holds the cutter against displace
45
ment. The lip‘26 tightly bears outwardly against
35 present or bear inwardly against the can wallv
W when the device is in its operative position on
the can to assist in holding the device against 30
displacement from the can. The cutter |2 does
not perforate or cut through the wall W when
the device is pressed on the can to form the prin
cipal pouring opening and automatically cuts
35
The means l3 for making an air inlet opening
'
'
to punch a comparative
ly small hole in the upper end wall E of the can
before the cutter H is forced or driven through
the end of the can.
The means l3 includes a
longitudinally extending enlargement or rib 40
on the outer side of the guide B. A longitudinal
opening 4| is provided in the rib 40 and is in
the side parts | 8 to seal therewith and to brace ‘ clined upwardly and inwardly relative to the
and reinforce the cutter.
The cutter l2 for mutilating or cutting the side
wall W of the can is‘ provided on the guide B of
guide B.
A cutter or punch 42 is ?xed in the
opening 4| and projects‘downwardly from the
lower end of the rib 40. The end or point 43
the; support or body | 0 and operates to cut a long of the punch 42 is preferably-bevelled. In ac
sliti S in the wall W when the device is pulled or cordance with the invention the projecting
removed from the can C. The lower end of the pointed or bevelled end of the punch 42 is spaced 50
guide B is provided with an outwardly projecting outwardly from the guide B to provide a space
lug 3|. A longitudinal saw-cut or slot 32 extends between the guide and punch to receive the bead
X of the can. To form or punch an opening in
55 into the lower end of the guide B and passes
through the lug 3|. The cutter I2 is varranged the end E of the can to admit atmospheric pres- h
in the slot 32 and is pivotally supported by a pin ‘sure to the can, the device is arranged in the
33 carried in openings in the lug 3|. The means position illustrated in Fig. 1 of the drawings so
or cutter I2 is provided with'a laterally project
that the point 43 of the punch 42 engages the can
wall E immediately within the bead X. The com
60 ing stop 34 to engage the ?at lower end of the
lug 3| to stop the cutter in a position where it bination handle and spout A is then struck or 60
does not cut through the wall W when the device pressed downwardly to force the punch 42 through
is forced downwardly on the can.v The edge of ' the Wall E.
the cutter |2 leading upwardly from the stop 34
When it is desired to open the can C for the
65 is provided with spaced teeth 35. The teeth 35 - purpose of draining or discharging its contents
project through the slot 32 to engage the can the punch 42 may be driven through the upper
wall W as the device is moved downwardly on the end E of the can in the manner just described
can to urge the cutter l2 to pivot thereby holding to admit atmospheric pressure to the interior
the stop 34 against the lower end of the lug 3|. of the can. When the device is provided with the
70 The teeth 35 are arranged in a curved series opening 9 it may not be necessary to cut an open
which is eccentric having a center of curvature ing in the can wall E to admit atmospheric pres TD
spaced from the pivotal center of the cutter | 2. sure to facilitate the easy pouring of the contents'
A sharpened edge 36' extends outwardly from the from the can. It is to be understood that the
upper end of the series of teeth 35. The edge 36 punch 42 and opening 9 mayige employed in any
50
75 extends at substantially right angles to the series
of the forms of the inventidriaiand may be op
tio'nally substituted one for the-i‘other where de- 75
2,105,575
4
sired. After the disengagement of the punch 42
from the can the device is positioned at a point
substantially diametrically opposite the opening
formed by the punch and the inner side i‘! of the
guide is placed against the can wall W to position
the point 2| of the principal cutter above 'or in
engagement with the can wall E adjacent the bead
the device. The cutter II is attached to the
body I0 so that it may be readily replaced if de
sired or found necessary. The cutter II is ?rmly
and rigidly attached to the body and is effective
ly braced but is adapted to bend or ?ex su?iciently
X. The device is then driven or pressed down
wardly to force the cutter ll through the wall E
to form the ?uid discharging opening. The spout
A in being in the form of a pistol grip handle as
described above is adapted to be engaged and
readily pressed downwardly by the operator to
force the cutter ll through the end of the can.
15 The point 2| of the cutter ll enters the can wall
E adjacent the bead X and as the downward
movement of the cutter progresses the diverging
and inclined edges 26 enlarge the opening. The
outer corners of the edges 26 operate to shear
ago through the can wall E while the edges ?atly bear
against the flap ‘F causing it to be rolled back.
This leaves a clean unobstructed opening in the
wall E communicating with the interior of the
U-shaped cutter I l.
Upon the completion of the downward move
ment of the cutter I l the lip 26 and the shoulders
21 enter and wedge in the opening tightly sealing
about the cutter H and resisting disengagement
of the device from the can.
- g:
Further, the can
wall W is tightly held between the inclined cutter
II and the guide B and is engaged by the teeth
35 of the cutter l2 to aid in preventing accidental
disconnection of the device from the can. As the
guide B moves downwardly at the exterior of the
can' the teeth 35 slidably engage the wall W with
out forming a slit therein and hold the cutter l2
in the position where the stop 34 bears against
the ?at end of the plug 31. To drain or pour the
contents from the can C the can is raised and
tipped or inverted so that its contents pour from
40
the spout A. The spout A is formed and pro
portioned to be readily inserted in the oil ?lling
opening of the crank case of an engine and the
ribs l6 and notches l5 operate to prevent tilting
or slipping of the spout when the spout is sup
porting the device and the can on the pipe. The
liquid in the can C is free to quickly drain out
through the spout opening M. The openings 29
permit the free and complete drainage of fluid
from around the outer side of the cutter. The
recess 30 receives and traps any slight leakage
that may occur around the cutter and prevents
the soiling of the exteriors of the can and spout
A. After the can has been emptied the device
may be easily disengaged or detached from the
can. During the removal or detachment of the
device from the can the teeth 35 engage the
wall W and cause the cutter l2 to swing to a
position where the pointed portion of the cutter
enters thewall W and the cutting edge 36 faces
upwardly. The cutting edge 36 operates to form
a long slit S in the can wall W. The device can
not be removed or disengaged from the can C
without cutting the mutilating slit S in the side
' wall W which positively prevents the re-use of
the can. In actual operation the bead X may
pass the cutter I2 without being out. This is de
sirable as it may be difficult to cut through the
bead.
The can opening and fluid dispensing device
of this invention is articularly easy and con
venient to use and pro 'des for the quick complete
dispensing of ?uids f om sealed containers or
cans. The spout A is sh ped and designed to con
stitute a convenient ha dle for the operation of
to allow the bead X of the can to pass between
its lower end part and the guide B. The cutter I2
is mounted in a simple effective manner and does
not materially complicate the construction. The
stops 34 and 31 which engage or bear against
external surfaces of the guide B do not necessi
tate special machining of either the cutter or the
guide.
_
Figs. 6 and 7 of the drawings illustrate a" form
of the invention involving a modi?ed type of‘
mutilating cutter Ila. The spout A, the guide
B, the cutter lla and the punch 42» may be sub
stantially identical with the corresponding ele
ments in the previously described embodiment of
the invention.
The cutter Illa instead of being -
pivoted as the cutter I2, is longitudinally shift
able on the guide B to retract as the cutter H8
is forced into the can and to advance to its oper
ative cutting position as the cutter He is with
[(1 LI
drawn from the can.
The cutter l2a includes a flat plate-like base '
66 and an active cutting part 6|. The base 66 of
the cutter I28L is movable longitudinally in a
recess 62 in the inner side of the guide B. The
longitudinal walls or sides of the recess 62 are
parallel and are slidably engaged by the opposite
edges of the base 60. In accordance with the in
vention thev inner wall 63 of the recess 62 is
inclined downwardly and toward the inner side
of the guide, considering the device positioned 35
as illustrated in Fig. 6 of the drawings. The
upper portion of the recess 62 is su?iciently deep
to receive the cutter l2a so that only the outer
portion or point of the cutting part 6| projects
from the inner surface of the guide B to en 40
gage the side of the Iran.
The cutting part 6| is blade-like, being pro
videdwith a downwardly and outwardly inclined
cutting edge 64 on its upper side. The cutting
edge 64 may be bevelled or inclined to one side 43
surface of the cutting part, as. illustrated in the
drawings. 'The lower edge 65 is inclined up
wardly and outwardly to join the cutting edge
64 at a point. A longitudinal slot 66 is provided
in the part l9a of the cutter'lla to receive the 50
cutting part 6|. The cutting part 6| is adapted
to move through the slot 66 with only slight
clearance.
.
In employing the form of the invention illus
trated in Figs. 6 and 7 of the drawings the cutter
He is driven or pushed through an end wall of
a can, being guided by the guide B to cut an
opening immediately adjacent the side wall of
the can. During the forcing of the cutter lla
through the end of the can the head at the 60
peripheral edge of the can and the side wall of
the can pass between the cutter I la and the guide
B. As the cutter Ha moves downwardly the in
clined lower edge 65 of the cutting part 6| en
gages the peripheral bead of the can and the 65
cutter l2it is thus held stationary during the next
phase of downward movement of the device. In
this manner the cutter 12a is received in the up
per portion of the recess 62 and the engagement
of the edge 65 with the can causes the cutter 70
l2a to be held outwardly against the inclined wall
63. With the cutter I28L in‘ this retracted posi
tion the cutting part 6| projects slightly from the
inner side of the guide B to engage the side wall
of the can.
This engagement does not cause
2,105,575
perforation of the can wall when the can is
opened by .the main cutter H8. After the con
tents have been drained from the can through
the spout A the device may be disengaged from
the can by engaging the spout and pulling the
cutter II“ and guide B from the can. During
this disengagement of the device from the con
5
of the can the lower edge ‘H of the cutter B
bends or ?exes the side wall of the can out
wardly but may not perforate the wall of the
can. Following the draining of the contents from
the can the cutter llb may be withdrawn from
the can to free the device for further use. Dur
ing this removal of the cutter llb from the can
tainer or can the contact of the point of the the side wall of the can is ?exed against the
cutting part 6| with the can holds the cutter l2a roller '15 by the cutter I2b and holds the roller
10 against the longitudinal movement so that the against upward movement. The upwardly mov
10
inclined wall 63 forces the cutter I2a inward
ing surface or wall 14 cooperates with the roller
ly. The cutting part 6| is thus driven inwardly 15 to force the roller inwardly. The lower end
through the wall of the can. The point portion wall of the recess 13 ultimately contacts the
of. the cutter I 2a enters the slot 66 and the part‘ roller to position the roller opposite the cutter
15 I 98 of the cutter Ha holds the wall of the can
12b. The roller 15 forces the can wall against
against ?exing so that the mutilating cutter ll!a the cutter l2b so that the cutter It’b pierces the 15
easily slits or cuts the can wall. The lower end can wall and enters the groove 76 of the roller.
wall of the recess 62 engages the base 60 of the As the upward movement of the device continues
cutter l2a to support the cutter in its operative the cutting edge 10 slits the side wall of the can
20 position.’ From the above description of the forming a comparatively long cut therein which
20
operation of the device illustrated in Figs. 6 and makes the can useless for re?lling. The periph
7 it will be seen that the cutter l2a forms a com
eral bead of the can which is rather di?icult to
paratively long cut or slit in the side wall of the cut may cooperate with the roller 15 and cutter
can as the device is disengaged from the can,
I2h to cause ?exing of the cutter IIb and upward
25 thus rendering the can useless for re?lling.
movement of the roller 15 to pass the cutter It‘b 25
The embodiment of the invention disclosed in without being cut or parted. After the head of
Figs. 8 and 9 of the drawings includes a mutilat
the can has passed the cutter I21’ the cutter IIb
ing cutter l2b projecting from the outer surface and guide B are easily disengaged from the can.
of the par-ti?!b of the cutter lib. The cutter l2b
Having described only typical preferred forms
30 is spaced some distance above the lower end of
and applications of my invention, I do not wish
the cutter Ill’ and its upper edge 10 is inclined to be limited or restricted to the speci?c forms
downwardly and away from the cutter lib. This and applications herein set forth, but wish to
edge ‘I0 is sharpened to constitute the cutting reserve to myself any modi?cations or variations
edge of the cutter 12b. The lower edge ‘H of the that may appear to those skilled in the art or
35 cutter i2b is inclined upwardly and outwardly to .
fall within the scope of the following claims.
35
join the edge 10 at a point. The cutter I211 is
Having described my invention, I claim:
rigidly attached to the cutter llb. In the par
1. A device for opening cans including a cutter,
ticular structure illustrated in the drawings the a guide in connection with the cutter to engage
cutter l2b has a stem 12 passing through an the side wall of a can and guide the cutter to
opening in the cutter lib and riveted over at the make an opening in an end wallof the can, and 40
inner side of the cutter llb. The riveted stem a pivoted cutter in connection with the guide for /
‘I2 operates to rigidly and dependably attach the cutting an opening irr'said side wall, said pivoted
cutter I21’ to the cutter lib
cutter having a part cooperating with the said
A_ longitudinally elongated recess 13 is provided side wall to hold the pivoted cutter inoperative
45 in the inner side of the guide B. The wall of during inward movement of the ?rst mentioned
45
the guide B may be thickened to provide ample cutter and to render the pivoted cutter operative
material about the recess 13. The point portion as the ?rst mentioned cutter is removed from the
of the cutter I21’ projects into the lower end can.
,
portion of the recess 13. The recess ‘I3 has
2. A device for opening cans including a cutter
50 straight parallel side walls and a downwardly adapted to be forced through a wall of a can
50
and inwardly inclined inner wall". A roller 15 to form an opening therein, a guide in connec
is arranged in the groove 13 to move or roll longi
tion with the cutter for engaging another wall
tudinally therein. The periphery of the roller ‘I5 of the can, and a pivoted cutter on the guide for
is substantially flush with the inner surface of cutting a slit in the second mentioned wall upon
55 the guideB when the roller is resting on the the removal of the guide and ?rst mentioned
lower wall of the recess 13. In this position the cutter from the can, the pivoted cutter including
roller 15 is directly opposite the cutter 12!’. A a part cooperable with the second mentioned wall
peripheral annular groove 16 is provided in the to hold the pivoted cutter inactive during inward
roller 15 to receive the point portion of the cutter movement of the ?rstmentioned cutterandto pivot
60 l2b with slight clearance. The groove 16 ‘may be the pivoted cutter to its active position during
60
V-shaped in cross section.
the removal of the ?rst mentioned cutter.
In operating the form of the invention illus
3. A device for opening cans including a cutter
trated in Figs. 8 and 9 of the drawings the cut
adapted to be forced through a wall of a can
ter llb is driven or forced through'an end of to form an opening therein, a guide in connection
the can and is guided by the guide 3 _to make with the cutter for engaging another wall of the 65
an opening immediately adjacent the bead of the can, and means for mutilating the can including
can. The peripheral bead of the can and the a cutter on the guide, and means for actuating
side wall of the can are received between the the last mentioned cutter through the said other
guide B and the cutter Ill’. The inclined lower wall to cut an opening therein during removal of
,70 edge ‘H of the cutter 121’ contacts the bead of the device from the can.
70
the can to flex it outwardly into engagement with
4. A device for opening cans including a cutter
the roller 15. The roller 15 is thus held up as adapted to be forced through a wall of a can to
the device is forced downwardly and is received .form an opening therein, a guide in‘connection
in the upper portion of the recess 13. During with the cutter for engaging another wall of the
75 the forcing of the cutter llb through the end can, and means for mutilating the can including
75
—»
2,105,575
6
stantially U-shaped cross section having a shank,
the cutter being arranged with its shank enter
pivoted cutter to engage the said other wall of ing the spout and its major portion in substan
the can to hold the pivoted cutter inoperative tially side by side relation to the guide, the shanlc
during the forming of said opening and operat ' of the cutter being curved to conform to the inte
able to cause projection of the pivoted cutter rior of the spout and a trap in the end of the
through said other wall upon removal of the spoutaround the cutter for trapping leakage from
a cutter pivoted on the guide, and teeth on the
device from the can.
>
5. A device for opening cans including a cutter
adapted to be forced through a wall of a can to
10 form an opening therein, a guide in connection
with the cutter for engaging another wall of the
around the cutter.
,
‘9. A can opener including, a body comprising a
tubular spout and a guide for engaging a side
wall of a can, a principal cutter on the interior
of the body adapted to be forced through an end
can, and means for inutilating the can including
a pivoted cutter on the guide to engage the said
other wall of the can, the pivoted cutter having a
wall of the can to cut an opening therein, and a
punch on the exterior of the body for making an
15 cutting edge, means holding the cutter against
10. A device for opening a can including two
movement during forming of said opening in a
position where the cutting edge does not act on
the can, andrmeans holding the pivoted cutter in
a position where its cutting edge makes an open
20 ing in said other wall during removal of'the de
vice from the can.
6. A device for opening cans including a body
comprising a tubular spout and a guide for engag
ing a can, a cutter of substantially U-shaped cross
25 section attached to the body with its shank en
tering the spout and its major portion in substan
tially side by side relation to the guide, and a lip
on the body bearing outwardly between the side
30.
15
parts, one a cutter adapted to be forced through
an end of the can to cut an opening therein, the
other a guide for cooperating with a wall of the can
to guide the cutter, and a cutter on one of said 20
parts shif/table to a retracted position upon forc
ing of the ?rst cutter into the can and shiftable
to a position to cut an opening in said wall of
the can upon removalof the device from the can.
11. A device for opening a can including alcutter
adapted to be forced through a wall of a can to
form an opening therein, a guide for engaging the
parts. of the cutter.
can to guide the cutter and having a recess, and
a cutter shiftable in the recess to cut an opening
in a side wall of the can when the ?rst named:
cutter is withdrawn, the last named cutter having
a part cooperable with the side wall to hold the
cross section attached to the body with its shank -
last named cutter inoperative during the inward
movement of the ?rst named cutter.
7. A device for opening cans including a body
comprisinga tubular spout and a guide for en
gaging a can, a cutter of substantially U-shaped
entering the spout and its major portion in sub-4
35 stantially side by side relation to the guide, the
side parts of the cutter having inclined edges,
and a lip on the end of ,the spout projecting be
tween the side parts and having a face substan
tially ?ush with said edges for engaging the wall
40
air inlet opening in said end wall.
of the can.
-
8. A device for opening cans including a body
comprising a longitudinally curved tubular spout
and a guide for engaging a can, a cutter of_ sub
12. A device for opening a can including a
cutter adapted to be forced through a wall of a
can to form an opening therein, a guide for en
gaging the can to guide the cutter, and a cutter .
on the ?rst named cutter for cutting an opening
in a side wall of the can when the device is dis
engaged from the can.
4
OZRO N. WISWELL.
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