Chemistry: electrical current producing apparatus – product – and – Means externally releasing internal gas pressure from closed... – Blowout type
Patent
1996-03-04
1997-03-11
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
Means externally releasing internal gas pressure from closed...
Blowout type
429 61, 429 82, H01M 1052
Patent
active
056099720
ABSTRACT:
A cell pressure control system is disclosed which includes a conductive frangible tab which tears in response to a defined pressure. The frangible tab is affixed at one position to a stationary member and at another position to a deflection member which deflects in response to increasing internal cell pressure. When the cell pressure increases to a dangerous level, the deflection member exerts sufficient pressure on the frangible tab to cause it to break. When the tab breaks, the cell goes to open circuit, thus reducing the danger of continued pressure build up. If the cell's internal pressure continues to increase even after the pressure contact is opened, a second stage of the pressure control mechanism may be activated. Specifically, a pressure rupturable region in the above-mentioned deflection member will rupture and release the cell's internal pressure.
REFERENCES:
patent: 3218197 (1965-11-01), Carmichael et al.
patent: 3219488 (1965-11-01), Southworth
patent: 3617386 (1971-11-01), Bosben et al.
patent: 3783024 (1974-01-01), Gibson et al.
patent: 4022366 (1977-03-01), Bones et al.
patent: 4025696 (1977-05-01), Tucholski
patent: 4028478 (1977-06-01), Tucholski
patent: 4129686 (1978-12-01), Kaduboski
patent: 4307158 (1981-12-01), Thibault
patent: 4430392 (1984-02-01), Kelley et al.
patent: 4722874 (1988-02-01), Marchak
patent: 4818641 (1989-04-01), Ledencian
patent: 4879187 (1989-11-01), Biegger
patent: 4943497 (1990-07-01), Oishi et al.
patent: 4971867 (1990-11-01), Watanabe et al.
patent: 4981553 (1991-01-01), Huhndorff
patent: 4992344 (1991-02-01), Coppers
patent: 5026615 (1991-06-01), Tucholski
patent: 5171648 (1992-12-01), Beard
patent: 5204194 (1993-04-01), Miller et al.
patent: 5300369 (1994-04-01), Dietrich et al.
patent: 5418082 (1995-05-01), Taki et al.
patent: 5427875 (1995-06-01), Yamamoto et al.
patent: 5464705 (1995-11-01), Wainwright
patent: 5523178 (1996-06-01), Murakami et al.
Sony Corporation 1G by 65 millimeter cell (labeled 18650), Apr. 1995.
Kaschmitter James L.
Martucci Frank L.
Mayer Steven T.
Souh Jung H.
Thompson Sean
Kalafut Stephen
Polystor Corporation
LandOfFree
Cell cap assembly having frangible tab disconnect mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cell cap assembly having frangible tab disconnect mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cell cap assembly having frangible tab disconnect mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-441991