Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and...
Reexamination Certificate
2004-06-08
2009-02-17
Ryan, Patrick (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
C429S082000, C429S166000, C429S179000, C429S229000, C429S224000
Reexamination Certificate
active
07491464
ABSTRACT:
An alkaline cell having a flat housing, preferably of cuboid shape. The housing may be laser welded closed with a metal cover inserted as a part of an end cap assembly. A portion of an insulating seal may be held compressed between a sleeve extending from the metal cover and an anode current collector nail within the end cap assembly. The housing may include a vent mechanism, preferably a grooved vent, which can activate, when gas pressure within the cell reaches a threshold level typically between about 250 and 800 psig (1724×103and 5515×103pascal gage). The cell can have a supplemental laser welded vent which may activate at higher pressure levels.
REFERENCES:
patent: 985634 (1911-02-01), Rodgers
patent: 2478798 (1949-08-01), Williams
patent: 2525436 (1950-10-01), Williams
patent: 4175166 (1979-11-01), Rosansky
patent: 4245010 (1981-01-01), Golz
patent: 4250232 (1981-02-01), Davidson
patent: 4256812 (1981-03-01), Tamura
patent: 4484691 (1984-11-01), Lees
patent: 4537841 (1985-08-01), Wiacek
patent: 4576303 (1986-03-01), Mundt
patent: 4722874 (1988-02-01), Marchak
patent: 4789608 (1988-12-01), Oswald
patent: 4803136 (1989-02-01), Bowsky
patent: 5667912 (1997-09-01), Georgopoulos
patent: 6143442 (2000-11-01), Takahashi
patent: 6159631 (2000-12-01), Thompson
patent: 6168883 (2001-01-01), Urry
patent: 6183903 (2001-02-01), Campbell
patent: 6248472 (2001-06-01), Kelemen
patent: 6312850 (2001-11-01), Janmey
patent: 6521372 (2003-02-01), Urry
patent: 6579640 (2003-06-01), Nagase
patent: 2165152 (1997-06-01), None
patent: 1993-90809 (1993-12-01), None
patent: 1995-211300 (1995-08-01), None
patent: 0925842 (1997-10-01), None
patent: 1998-92397 (1998-04-01), None
patent: 1998-269997 (1998-10-01), None
patent: 1999-185714 (1999-07-01), None
patent: 1999-213978 (1999-08-01), None
patent: 2000-233102 (2000-08-01), None
patent: 2001-35467 (2001-02-01), None
patent: 2001-143664 (2001-05-01), None
patent: WO 00/02278 (2000-01-01), None
patent: WO 01/61770 (2001-08-01), None
patent: WO 03/054982 (2003-07-01), None
Anglin David
Ashbolt Mark
Bobowick Derek
Ferrin Robert S.
Malgioglio Anthony
Chu Helen O
Johnson Kevin C.
Josephs Barry D.
Ryan Patrick
The Gillette Company
LandOfFree
Alkaline cell with flat housing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Alkaline cell with flat housing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alkaline cell with flat housing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4118084