Патент USA US2411272код для вставки
` N0v.'19, 1946. l |=_ A_ KELLER 2,411,272 BATTERY Filed Aug. 21, 1943 lNvENTòR .nl í BY ATTÉRNEYS 2,411,272 . Patented Nov. 19, 1946 ’ UN'iTED sTATEs PATENT yor-'FlcEy BATTERY 'Frederick A. Keller, East Paterson, N. J., assignor to Bright Star Battery Company, Clifton, N. J., a corporation of New Jersey Application August 2l, 1943, Serial No. 499,477 1 claim. , ' Y _ l (cl. 13o-133) _ ' . ThIs invention relates to lbatteries and especially to flashlight batteries. mûre _ I1 Áof plastic material the periphery of which rests . on the rim ofthe cup III and is sealed to the edge - An _object of this invention -is an improved l ilashlight battery construction. of the shell I3. The shell I3 and disk Il may be composed of ethyl cellulose or other suitable A battery constructed according to the pres Ii plasticmaterial. The -cap IB is so arranged as ent invention comprises a cup of- zinc or other to receive the upper end of the carbon electrode suitable‘metal containing a cartridge having a I2 and has a portion extending beyond the outer centrally arranged electrode of carbon or other surface of the disk. 'I'he ñange of the cap is suitable material. \A shell of ethyl cellulose or embedded in the plastic material in such manner" other suitable plastic material closed at one end that with the electrode inserted no portion of the ._ ` fits over the closed end of the cupI and a cover cap is exposed to attack by electrolyte escaping oi’ plastic material engages the rim of the ~cup " from the cartridge. The seal between the cover and is Sealed to theV edge of the shell. A metal I l and the shell I3 provides a gas-tight construc cap is sealed in the cover with a portion 'of -the tion. The member I5 constitutes one terminal cap exposed and with the cap receiving the end of the battery` while the cap I6 constitutes th of the central electrode. 'I'he capA is embedded other terminal. . in the cover such that no Vportion of it is exposed - - to contact by electrolyte which may escape from the cartridge. In constructing the battery above described. the cartridge and carbon electrode are assembled in ' the cup I0. The shell I3 -is produced by anin The plasticshell _forms a gas-tight seal with 20. jection molding _operation and is of uniform in' the plastic cover and also obviates the need of terior diameter throughout'its entire length. The the paper tube now used to insulate lthe curved shank of the member I 5 is projected through the surface of the cup. By reason of the cap being closure aperture to seat the head I5b in the re' embedded in the plastic material, nol washers are cess, after which the shank is'swaged to form the required over the top of the cartridge as hereto head I5a. The assembled cup, cartridge and car- ’ fore to prevent contact of escaped electrolyte with , bon electrode are inserted into the shell, after Y the cap. For this reason, the usual spacing be tween the top of the cartridge and the sealing ~ which the cover I'I lis arranged on theLrim of the cup I0 'with the cap I6 Vreceiving the' end of the carbon electrode. Next, the rim of the shell is sible to increase the length of the cartridge and 30 sealed to the cover either by heat'and pressure _ member may be decreased thereby making it pos thus provide additional electrolyte. without changing the overall length of the battery. IAlso, or by use of` a -solvent and pressure.` The _car for the same overall length of battery a shorter the end of the carbon electrode I2 with the inner cup` may be used, thus conserving zinc°`> tridge is located in the- shell by engagement of ^ Other objects, novel features and advantages 35 of this invention will become apparent from the following speciiication and accompanying draw . ing, wherein: Fig. 1 is a side elevation of a flashlight battery embodying the invention and ' Fig. 2 is a section on the line 2-2 of Fig. l. In Fig. 2, I0 indicates the usual zinc cup of a flashlight battery in which is contained the usual cartridge II. A centrally arranged carbon elec trode I2 is embedded in the cartridge in the usual _ Surface of the cap I 6J I claim: _ ' « ‘ ' - A battery comprising a metallic anode cup open at its upper end and containing a. cartridge hav ing a centrally arranged electrode, a shell of plas tic material ñtting over the cup andopen at its 40 upper end and closed at the lower end by an I integral end wall provided with a small aperture, said shell having the edge of its open upper end extending beyond the open upper end of the cup, a plastic cover closing the open upper end` of said shell and having- a gas-tight seal with the edge of the shell, a metallic cap sealed in said manner and projects above the rim of the cup I0. -A shell I3 of plastic material surrounds the cup ’ cover with a portion of said cap exposed and with Ill and is provided at one end withvan integral the end of said electrode received in said cap, and closure Il in which is embedded a metal member a rivet-like metal member consisting of a shank ~ I5. A metal rivet-like member I5 extends 50 of small diameter filling the small aperture in I ‘ through an aperture in the4 closure I4 and is the' lower end wall of the shell, 'an inner head provided with an interior head I5a and exterior integral with shank and located 'within the shell ' head lib seated in a recess in the outer surface in contact with said cup and an outer head ‘ex ofthe closure I4 ilush with .said surface. The terior said shell of substantial diametenhav interior head I5a engages-the zinc cup I0 while .55 ing itsofexposed> surface ñush with the outer sur- ' ~ the head IIìb constitutes the bottom terminal of face of said shell. ‘ _ . the battery. A metal cap I6_ is embedded in a disk _ FREDERICK A. KELLER.