US2406831A

US2406831A - Can punching device

Info

Publication number: US2406831A
Application number: US609898A
Authority: US
Inventors: Hansen Jack
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-08-09
Filing date: 1945-08-09
Publication date: 1946-09-03
Anticipated expiration: 1963-09-03

Description

Sept. 3, 1946. 1 HANSEN CAN PUNQHING DEVICE -Filed Aug. 9, 1945 Vfactured and used the .United `States -the head of the can with -ture and .a vsuitable venting aperture.

Patented Sept. 3, `1946 UNITED PATE NT OFFICE CN "P UNCHING' DEVICE .J ack'Hansen, Everett, Wash. ApplcaltionAugustlS, 1945,.Serial N0. 609,898

" Claims.

:amended April .30, 19

The invention described herein may 'be `manuby or vfor `the i Government of for governmental purposes without thefpayment tomeof any'royalty thereon in accordance With `the provisions of theac'tof vAprilnSO, -1928 (ch. 460,45rStat. L. 467/) This invention relates tocan punching devices and has for its object `to .provide an implement Iof this class which lwill Vexpeditiously :perforate `the head of a can-.to .a pouring v opening therein.

`provide both a ventingrand The ldevice has particular Yapplication to milk vcans-of oneesize, but obviously theudimensions of the device maybe enlarged 'or'diminshed solas. lto adopt it for punching .the heads of larger or smaller cans. Y

In .dispensing .the contents-of a can lof `milk where the milk is to be used in small quantities, such as for tableusait'is advantageous tof punch a-small dispensing raper- On ythe contents of the-.can-are as when used .in baking it isradvantageous totprovide alarge other hand, Awhere `the to be dispensed quickly, or cooking,

`pouring aperture in the head of the can as Well as a suitable venting aperture.

Itis the purpose of this invention toprovide a can punching device which, at `the `option of the operator, will provide in the head ofacan either a small or a large pouring aperture and in either case a suitable ventingaperture, and it is an objectfof the invention to .positionsuch pouring aperturesin the headof thecan directly adjacent the-side wall substantial part of the ythereof so as to leave=no head between the `apertures and thesiderwall of the can, in orderthat no substantial portion of =the contents of the can will betrapped in the can whenit is vdesired to empty the same.

With this purpose andobject in View, the -invention consists .of the-novel construction ofthe can punching elements of the device as ywell as in certain novel combinations of parts, all of `.which will first be fully described and afterwards specically pointed out inthe appended-claims.

'Referring to the accompanying drawing: Figure 1 is asideelevation ofthe device partly in vertical section illustrating the implement in the position of perforating the head offa Vmilk can with a small pouring aperture and a venti ing aperture, the punching lever Vandpunches being shown in their raised inoperative position in dotted lines.

Figure 2 is Va fragmentaryi elevation. of the I:dievice partly in vertical section illustrating lthe .receive the 'punches `or cutters "I, .downward movement of the Ioperating lever -5 of `:March 3, 1`883,as 28; 370 0. G. 757i) implement in theposition of perforating thehead of a milk can with a large pouring aperture and a venting aperture.

Figure`3 is a horizontal sectional View through the post and lever actuating plunger on 'line 3-3 of Fig. 2.

Figure 4 is a vertical transverse sectional view through the operating lever on line 4-4 of Fig. 2; and

'Figure 5is a vertical `transverse sectional view throughthe operating lever online 5 5 of Fig. 2.

Like numerals of reference indicate the same parts throughout the several figures, in Which- I indicates the `device which includes a 4`supporting base'2 to receive a can3.

4 indicatesa vertical post fixed to or integral with .the base 2, and `5 indicates the operating lever which is pivoted `at 6 to the vertical post t and which` carries the can punches or cutters "l,

'lil indicates .a plunger mounted on the post 4, whi'chzplungeris actuated by afspring l i which urges the plunger :against the underside of the .actuating lever 5 to raise `the same into its `normalinoperative position, as shownfin dotted lines in Fig. 1.

Provided'onftl'ieipost `4 is Vapair of. arcuate stops l2 shaped to the contour of the can; 3, to position and center theicanlonthebase 2 so as 'to properly r8 and `9 upon as will .be clearly'fapparent from an inspection of `the Yaccompanying drawing.

Referring specically `.to Vthe punches Aor vcutters'1,18andzSQitwill be seen fromfFigures 1 and 2 that the'venting punch 1 is of pointedl cylindrical 'formation and so positioned and Xed on thelever 5that1it perforates the `can 3 close up against Ythe :side Wall 3 thereof, and it will also `be seen that the Apunch.o1-"cutter "Bis of identical pointed cylindrical fnrmation and so positioned and fixed on the leverf5 `thatliu;perforates the can 3 close .up against theside wall`3 of the can 3*but at a point. diametrically opposite to the perforation formed b-y'the venting punch or cutter l.

`When the operating lever l5 is pressed down on thecan and the can head 3 is perforated by the two punches or cutters landt, either one of the perforations formed in the can head '3" may be used as the pouring aperture, since there may be no substantial difference either in the size of theper'forationsor in their position With relationlto'the side'wallS' of thecan`3, and when the contents of the can are to be dispensed in -small lquantities, these 4two `punches or cutters 1 and 8 are employed to perforate the can-head 3" as just described.

When, however, it is desired to provide a large pouring aperture in the can-head 3 so that the can 3 may be quickly emptied of its contents, the large punch or cutter 9 is brought into position for operation.

Referring to Figures 1 and 2, it will be seen that the large punch or cutter 9 is of a pointed and tapered formation; that the side S' of the cutter, when in operative position and adjacent the side-wall 3 of the can 3 is arcuately shaped substantially equal to the curvature of the can 3 so that the aperture formed in the can-head 3" conforms substantially to the contour of the Wall of the can, as will be seen from the large dotted aperture 9 in Figure 3. It will also be seen that the side 9" of the cutter 9 is angular in formation, so as to give to the aperture formed thereby two straight portions which meet at a point or apex, as is also shown at the perforation 9" in Figure 3. This precise cross-sectional form of the large cutter 9 is not important, though the form shown in the drawing and herein described has been found to be highly7 effective in properly displacing the metal of the can-head 3 for providing an effective, fastpouring aperture. The large cutter may or may not be serrated as that is unimportant though it is thought that the form shown in the drawing assists in folding back the tin adjacent the pouring perforation 9 which is formed by the large cutter 9.

As will also be seen from Figures 1 and 2, the large punch or cutter 9 is mounted under the underside of the operating lever 5 on a slide i4 which passes through guides l5 xed on the underside of said lever 5, the outer end of the slide I4 terminating in a stop IB which abuts against the outermost guide l5 when the large punch or cutter 9 is moved into operative position. For the convenient shifting of the large punch or cutter 9 into and out of operative position, the operating lever 5 is provided with a slot 5' (Figs. 2 and 5) through which a headed stud I4' extends for manual manipulation. It will also be seen from Figure 4 that the large cutter 9 is provided with a chamber I1 formed through the center thereof and suiciently large to house the small cutter 8 entirely within the large cutter 9 when the large cutter 9 is moved into operative punching position, as shown in Figure 2.

When the large cutter 9 is thus in operative position, downward pressure exerted on the operating handle 5 causes the large cutter 9 to provide a large pouring aperture in the can-head 3, as well as a suitable venting perforation therein, as shown in Figure 3, while to provide a can with a small pouring aperture, the large cutter 9 is merely moved outwardly of the operating lever 5 into inoperative position shown in Figure l, thus exposing the small cutter 8 for operation.

Having thus described the invention, I do not wish to be understood as limiting myself to the exact construction shown in the drawing and described herein, as various changes and modifications may be made therein, and I consider myself clearly entitled to all such changes and modications as fall within the limit and scope of the appended claims.

I claim:

1. A can punching device including a base for supporting a can to be punched, a post on the base, an operating lever pivoted to the post, a pair of small punches fixed on the operating lever and adapted to punch two small perforations in the head of a can adjacent the side wall of a can upon downward pressure applied to the operating lever, to provide a pouring aperture and a venting aperture in a can-head, a large punch slidably mounted on the underside of the operating lever, the mounting means for said large punch including a slide and guiding means for the slide, a stop on the slide adapted to abut the guiding means to limit the sliding movement of the large punch, means on the slide to be manually engaged for sliding the large punch relatively to the operating lever, the large punch and its mounting means being arranged whereby said punch may be moved into and out of operative punching position, said large punch being provided with a chamber sufciently large to house one of the pair of small punches, the whole arranged whereby, upon movement of the large punch into operative canpunching position, one of the pair of small punches is housed within the large punch and upon downward pressure applied to the operating lever, the large punch provides a large pouring aperture in a can-head closely adjacent the side wall of a can, and one of the pair of small punches provides a venting aperture therein diametrically opposite to the position of the large pouring aperture provided by the large punch.

2. A can punching device including means for supporting a can to be punched, an operating lever, a pair of small punches fixed on the operating lever and adapted to punch two small perforations in the head of a can adjacent the side wall thereof upon downward pressure applied to the operating lever to provide a pouring aperture and a venting aperture in a can-head, a large punch slidably mounted on the underside of the operating lever and adapted to be moved into and out of operative position over the can-head, said large punch being provided with a chamber therein to house one of the said pair of small punches, the whole arranged whereby movement of the large punch into operative can-punching position houses one of the said pair of small punches and upon downward pressure applied to the operating lever the large punch provides a large pouring aperture in a can-head closely adjacent the side wall of a can and one of the said pair of small punches provides a venting aperture in a can-head.

3. A can punching device including an operating lever, a pair of small punches on the operating lever and adapted to punch two small perforations in the head of a can closely adjacent the side wall thereof upon downward pressure applied to the operating lever to provide a pouring aperture and a venting aperture, a large punch movably mounted on the operating lever and adapted to be moved into and out of can-punching position, said large punch being provided with a chamber to house one of the said pair of small punches therein, the Whole arranged whereby movement of the large punch into operative canpunching position houses one of the said pair of small punches and upon downward pressure applied to the operating lever the large punch provides a large pouring aperture in the can-head and the unhoused one of the said pair of small punches provides a venting aperture in a canhead.

4. A can punching device including an operating lever and a small punch thereon adapted to punch a pouring aperture in a can-head, a large punch movable on the operating lever, said large punch having a chamber to house the small punch therein when it is desired to increase the capacity of the pouring aperture.

5. A can punching device including an operating lever and a small punch thereon adapted to punch a pouring aperture in a can-head upon actuation of the operating lever, a. large punch movable on the operating lever into and out of operative position, said large punch having one of its sides formed arcuately to conform substantially to the contour of the side Wall of a can and provided with a. cavity to house the small punch therein when the large punch is moved into can-punching position.

JACK HANSEN.