The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 2008
Filed:
Jun. 09, 2004
Richard E. Durkot, East Walpole, MA (US);
Paul A. Christian, Norton, MA (US);
Dean Macneil, Cambridge, MA (US);
James R. Costanzo, Danbury, CT (US);
David Anglin, Brookfield, CT (US);
Mark Ashbolt, Newtown, CT (US);
Derek Bobowick, Sandy Hook, CT (US);
Robert S. Ferrin, Bethel, CT (US);
Anthony Malgioglio, Stamford, CT (US);
Brien Merrill, New Fairfield, CT (US);
Alexander Shelekhin, Ridgefield, CT (US);
Steven J. Specht, Brookfield, CT (US);
Matthew Sylvestre, Woodbury, CT (US);
Philip Trainer, Sandy Hook, CT (US);
Robert A. Yoppolo, New Milford, CT (US);
Richard E. Durkot, East Walpole, MA (US);
Paul A. Christian, Norton, MA (US);
Dean MacNeil, Cambridge, MA (US);
James R. Costanzo, Danbury, CT (US);
David Anglin, Brookfield, CT (US);
Mark Ashbolt, Newtown, CT (US);
Derek Bobowick, Sandy Hook, CT (US);
Robert S. Ferrin, Bethel, CT (US);
Anthony Malgioglio, Stamford, CT (US);
Brien Merrill, New Fairfield, CT (US);
Alexander Shelekhin, Ridgefield, CT (US);
Steven J. Specht, Brookfield, CT (US);
Matthew Sylvestre, Woodbury, CT (US);
Philip Trainer, Sandy Hook, CT (US);
Robert A. Yoppolo, New Milford, CT (US);
The Gillette Company, Boston, MA (US);
Abstract
An alkaline cell having a flat casing, preferably of cuboid shape. The cell can have an anode comprising zinc and a cathode comprising nickel oxyhydroxide. The casing can have a relatively small overall thickness, typically between about 5 and 10 mm, but may be larger. Cell contents can be supplied through an open end in the casing and an end cap assembly inserted therein to seal the cell. The end cap assembly includes 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 (1724×10and 5515×10pascal gage). The cell can have a supplemental vent mechanism such as a laser welded region on the surface of the casing which may activate at higher pressure levels.