US1671566A - Dry battery - Google Patents

Description

May-29,1928. I 1 71 5 f A.' T. BALDWIN I DRY BATTERY Filed May 31, 1925 .E' INVENTOR 7 Hz. 1. EN 7." BHLDIYIN ATTORNEYS Patented May 29, 1928.

UNITED STATE- ALLEN T. BALDWIN, OF MON'I'CLATR, NEW vJERSEY, ASSIGNOR, BY MESNE ASSIGN-v MENTS, TO NATIONAL CARBON COMPANY, INC., OF NEW YORK, N. Y., A. CORPORA- TION OF NEW YORK.

My invention relates to dry batteries, and particularly to a container therefor. The object of my invention is to provide a contain- -er which seals the battery terminals against s-access except by a tell-tale rupture of the container.

In the accompanying drawings- Fig. 1 is a perspective of a battery casing in which my inventionis embodied in one form; r Y

Fig. 2 is a vertical sect-ion therethrough showing the battery within the casing; Fig. 3 is-a partial perspective of the terminal end of the casing showing one of the end flaps in open position;

Fig. 4 is a plan of the casing blank; and Fig. 5 is a broken plan of a battery showing the manner in which the terminal end of the casing is ruptured to expose the bindin terminals. a v 1 gurreptitious theft of current from batteries before they are sold to the consumer is a common practice in many retail stores, incident to the testin of lamps or other as equipment. This lea to deterioration of the battery andthe consequent dissatisfaction of the customer with the service which the battery gives. The present invention provides a simple and effective sealed container or battery casing which prevents access to the battery terminals without a telltale rupture of the casing which puts the purchaser on guard.

As here shown the battery is of the usual cylindrical type, comprising a zinc shell 15 to which is secured at one end the terminal 16, the second terminal 17 being mounted at the head of the central carbon pole 18. The battery is enclosed within an insulating casm ing 19 of rectangular outline formed from heavy paper or card-board. I, The casing blank 20, indicated in Fig. 4, comprises thesections A, B, (land D which form the four side walls thereof. At one 5 end of the casing the several sectioiis A to D inclusive, have flaps E, F, G and H which are folded over and glued together to form a three-ply bottom 21. At the opposite ends of the several sections ofthe blank are flaps I, K, L and M which are folded over and sealed to form the top 22 0f the casing at the terminal end of the battery.

The flaps K and M are of materially eater length than the flaps I and L, the' 5'5 fitter being of such limited extent that when Application filed May 31,

i must be ruptured along the scoring and the DRY BATTERY.

[1923. Serial N0. 622,568.

K, which rests directly upon and is sealed I to the outer faces of the flaps I and L, is scored at 23. Within'the same area and in register with the sc-orin of the fla K, the flap M which overlies ap- K, is scored at 2 The scoring 24 of flap M is continued down the side section D of the casing at 25 in the form of a V, and is so located as to expose the binding terminal 16 when the areas 26 and 27 of the flaps M and K which lie within the scoring, are removed by rupturing the casing alon the scoring lines.

Under 'normal con itions the casing is sealed at both ends of the battery, and its terminals thus completely enclosed. To obtain access to the terminals the casing top areas 26 and 27 in the top flaps K and M I removed, This may be-readily accomplished by the pressure of the finger upon the area within the scoring.

It is common practice to arrange batteries in groups, and the present casing forms an insulating cover for the zinc shell 15, which serves to space and insulate adjacent cells. from each other. The break-out area 2627 is so limited in extent that not only the side flaps I and L, but also the marginal areas of the flaps K and M, overlie the batter top and thus retain the casing in position t ereon, even when the .terminals are exposed.

' Various modifications in detail will readily occur to those dealing with the problem, which do not depart from what I claim as my invention.

I claim- 1. The combination with a dry battery having binding terminals at one end thereof, of a sealed casing of frangible insulating material having at the battery terminal end thereof an area defined by a weakened boundary, said area constituting a tear-out por tion smaller than the top of the battery and positioned adjacent to the battery terminals, the removal of which exposes the battery terminals.

2. Thcombination with a dry battery having binding/terminals at one end thereof, of a scale casing of frangible insulat-' ing material having at the battery terminal end thereof an area defined by a weakened boundary, said area including but a portion no of the casing end adjacent said terminals and a contiguous portion of one side of the casing, and constituting a tearout portion,

removal of which. exposes the battery terminals.

The combination with a dry battery having at one end a central and a marginal terminal, of a sealed casing enclosing the battery body and terminals, but having at the terminal end thereof an elongated tearout portion'of smaller area than the end of said battery, defined by 'a weakened boundary and including a portion of a side Wall of the casing in register with the marginal terminal.

4. The combination with a dry battery having at one end a central and a marginal terminal, of asealed casing enclosing the battery'body and terminals, said casing being of rectangular outline and having folded over end flaps scored in register to define a tear-out area registering with the battery terminals, the scoring in one of said flaps being extended to the margin of the casing end and down one side wall thereof toexpose the side of the marginal terminal.

In testimony whereof I have signed my name to this specification.

ALLEN T. BALDWIN.

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