US1878956A

US1878956A - Can perforator

Info

Publication number: US1878956A
Application number: US474554A
Authority: US
Inventors: Manteufel August
Original assignee: ROYAL E SCHEIDLER
Current assignee: ROYAL E SCHEIDLER
Priority date: 1930-08-11
Filing date: 1930-08-11
Publication date: 1932-09-20
Anticipated expiration: 1949-09-20

Description

Sept. 20, 1932. MANTEUF'EL, 1,878,956

CAN PERFORATOR Filed Aug. 11'. 1950 2 Sheets-Sheet 1 I Ira ez i0n 71 627065505: dzgg as? Mia/1 few/e2, 45 m 5: I,

Sept. 20, 1932. A. MANTEUFIL. 1,373,955

CAN PERFORATOR F'iledAug. 11. 1950 2 Sheets-Sheet 2 W252: 695 a 5 I dzgwai wazziezzfs'.

3%,WTW 4, W

r as

a curing opening an tion with a can;

Patented Sept. 20,

UNITED STATES PATENT oar-roe AUGUST MANTEUFEL, OF -CHICAGO, ILLINOIS, ABSIGNOR, BY DIRECT AND KESNE A8- SIGNMENTS, OF ONE-THIRD TO AUGUST IBLUH, OF CHICAGO, ILLINOIS, AND ONE- THIBJ) 'IO BOYALE. OF CHICAGO, ILLINOIS 7 application fled August 11, 1880. Serial No. 474,554.

' Thisinvention relates to a can perforator, and an object of the invention is tbe prov1- sion of a device simple and'durable in construction, economica to manufacture, and efiicient in operation,'by meansof which cans or similar receptacles may be perforated for pouring the contents therefrom. A further object is the provision of a device of this character adapted to be attached to a can or receptacle, and maintained; in attached engagement until a can or receptacle has been emptied of its -contents,the device beingconstructed and arranged toseal or close the opening or openings when not in use. As

an additional object, the invention contemplates the provision of a liquid receptacle perforating device ada ted to perforate both an air vent opening, with ahandle portion, and means for lifting the perforating members out of engagement with the openings when itis desired to pour'from the container or receptacle.

Other objects will appear hereinafter. The invention consists in the combinations hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings forming-a part of this specification, and in which Fig. 1 is a side elevational' view, partly in section, showing the device in engaged posi- Fig. 2 is a plan view of the device as shown 7 f Fig. '3- is a detail pivotally mounted c ampingvmember;

rspectiveview of the Fig i'is'a perspective view of the clampingi lever i g. 5 is an enlarged detailv-iew showing the perforating arm in depressed position,

'andtheclamping-member in disengaged position; 5" Fig. 6 is'a vertical view taken substantially on'theline 66 of Fig. 5;

"Fig'g'lis a view similar to Fig. 5, showing the perforating arm in depressedposition, andthe' clamping member in engaged posifitl a a d i '--*Fig.8 is a perspective view of the supporting'member and bracket with a portion of the handle.

As illustrated in the drawings, the preferred embodiment of the invention comprises'a supporting member or arm 11, which is normallylad'apted to extend diametrically across t top of a can or similar receptacle. One end of the sup orting member 11 is preferably bifurcat to provide a longitudinal slot-12 for the reception or passage of the perforating prong, which shears an outlet opening, and also to provide a pair of depending fingers 13, which engage an edge of the can as shown in Figs. 1 and 2. The remainder of the supporting member 11 is of sufiicient length to extend transversely A bracket member 15 is mounted upon arm 11, a slightly greater distance from the fingers 13 than the diameter of the can to be en god, and has integrally formed lateral aces 16, the upper portionsof which have circular openings 17 for the reception of a pivot pin 18, and the lower portions of which have rectangular openings 19 for receiving the transverse portion 20 of clamping lever 21. The clamping member 22 is preferably formed of a transverse portion 23 and two substantially .parallelside plates 24, each of which is provlded with 8.112013611- ing 25 to receivepivot pin 18, and also rovided with a clamping jaw 26, whic is adapted to engage the downturned flange rtion 27 of the can cover as shown in Fig.

The side plates 24 are preferably disosed, respectively, adjacent the outer suraces of the faces 16 of bracket 15, as shown in Fig. 6, and lates 24 are-also provided with transversely 'a ligned triangular openin 28, which receive flattened portion 20 of'campingdever 21. As shown in Figs. 5 and7, the

be shifted into engaged position as shown in Fig. 7.

In addition to slot 12, the supporting member 11 is also provided with a longitudinal w depressed, elevates member to the dotted line position shown in Fig. 1. Mounted adj acent the free extremity of member 30 is an outlet perforating prong 33, which when forced through the can lid, severs or shears a rectangular opening adjacent the top edge of a can as shown in Fig. 1. in the preferred embodiment disclosed. Mounted adjacent the opposite horizontal portion of member 30 is an air vent perforating prong 34 which, when member30 is depressed, shears or perforates an air vent. opening in the can lid, substantially diametrically opposite to the outlet opening.

As shown in Fig. 7, prong 34 is preferably curved becauseof its proximity to the pivotal mounting of member 30, and the inner curved portion also serves to crimp the lid inwardly as shown at 35 in Fig. 7. In the full line position shown in Fig. 1, prong 33 extends through slot 12, and prong 34 extends through slot 29. In the preferred embodiment shown,- member 30 is normally maintained, in depressed position by means of coil spring 36 surrounding pivot pin 18.

he operation of the device is substantially indicated by the foregoing description of parts and functions. ,To place in operative position, member 30 is elevated by depressmg the lifter portion 32, the su porting member 11 is placed transversely o the top of the receptacle, and then lever 21 is swung from the position shown in Fig. 5 to the position shown in Fig. 7, which serves to tightly engage clamping member 22, and consequently the supporting memberll. The perforating member 30 is then manually depressed, during which operation the

prongs

34 and 33 shear oppositely disposed openings in the can lid, with the opening cut by prong 33 conveniently located for pouring the contents and the opening cut by prong 34 serving as an air vent. When not in use, member 30 remains depressed with the prongs projecting into the openings so. as to exclude air, dust, and other foreign matter. To use, handle 14 is gras d by the hand, lifterportion 32 depresse and the can tilted to pour the'contents through the outlet opening.

Although not necessarily restricted thereto, the device is especially adapted and is of particular utility in connection with cans of evaporated or condensed milk. In this particular use, the liquidhas a tendency to congeal between the edges of the openings and the perforating prongs, so that an airtight container is provided even after the precise details of construction set forth, but

desire to avail myself of such variations and modifications as come within the scope of the appended claims. I 1

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: p I

1. A device for perforating condensed milk cans or the like, comprising a supporting arm arranged to extend transversely,

across the top. of a can, a finger member on said armfor engaging one edge of said can, a bracket member mounted upon said arm adjacent the opposite edge of said can, a clamping member pivotally mounted upon said bracket member and provided with a clamping jaw arranged to engage the ad acent edge of said can, a manually operable clamping lever constructed and arranged. to force said clamping member into-clamping engagement in one position and to disengage said clamping member in a second posit1on, a perforating member pivotally mounted relative to said arm,and a prong mounted upon said perforatingmember and arranged when said perforatingv memberis depressed to shear a pouring opening in the top of said can and also normallyto close said opening. p 2. A device for perforating condensed mllk.

cans or the like, comprising a supporting arm arranged to extend transversely across the top of a can, a finger member on said arm for engaging one edge of saidcan a bracket member mounted upon said arm adjacent the, opposite edge of said can, a clampi-n mem-' ber pivotally mounted upon, s ai.d racket member and provided with a clamp ng aw arranged to engage the adjacent edge-ofsaid can, a manually operable clamping lever constructed and arranged to force saidifclamping member into clamping engagement in pne position and to disengage said clamping member in a second'position, a, pe member pivotally mounted relat arm, a prong mounted uponsaidperf ating member and arranged when said perforat ipg member'is depressed to shearapojir g opening in the top of said can and?! so i to close said opening, and asecprr prong mounted upon said perforating member and arranged when said perforating member is depressed to shear an air vent opening in the top of said can and also normally to close said opening.

A device for perforating condensed milk cans or the like, comprising a supporting arm arranged to extend transversely across the top of a can, a finger member on said arm for engaging one edge of said can,-

a bracket member mounted upon said arm adjacent the opposite edge of said can, said bracket member provided with transversely aligned openings, a clamping member pivot ally mounted upon said bracket member and provided with a clamping jaw arranged to engage the adjacent edge of said can and also provided with transversely aligned openings adapted to register with said bracket member openings, a manually operable clamping lever having a transverse portion arranged to pass through said bracket member openings as well as said clamping member openings to exert a camming action upon said clamping member and force the same into clamping engagement in one position of said lever and to disengage said clamping member in a second position of said lever, a perforating member pivotally mounted relative to said arm, and a prong mounted upon said perforating member and arranged when said perforating member is depressed to shear a pouring opening in the top of said can and also normally to close said opening.

4. A device for perforating condensed milk cans or the like, comprising a supporting arm arranged to extend transversely across the top of a can, a finger member on said arm for engaging one edge of said can, a bracket member mounted upon said arm adjacent the opposite edge of said can, said bracket member provided with transversely aligned openings, a clamping member tally mounted upon said bracket member and provided with a clamping jaw arranged to engage the adjacent edge of said can and also provided with transversely aligned openings adapted to register with said bracket member openings, a manually operable clamping lever having a transverse portion arranged to pass through said bracket member openings as well as said clamping member openings to exert a cainming action upon said clamping member and force the same into clamping engagement in one position of said lever and to disengage said clamping member in a second position of said lover, a perforating member pivotally mounted relative to said arm, a prong nibiinted upon said perforating member and arranged when said perforating member is depressed to shear a pouring opening in thctop of said can and also normally to close said opening, and a second air vent prong mounted upon said per forating member arranged when said In testimony whereof I have signed myname to this specification.

AUGUST MANTEUFEL.