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:
Feb. 17, 2009
Filed:
Jun. 08, 2004
Brien Merrill, New Fairfield, CT (US);
Derek Bobowick, Sandy Hook, CT (US);
Robert S. Ferrin, Bethel, CT (US);
David Anglin, Brookfield, CT (US);
Mark Ashbolt, Newtown, CT (US);
Scott Manning, Southbury, CT (US);
Anthony Malgioglio, Stamford, 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);
Brien Merrill, New Fairfield, CT (US);
Derek Bobowick, Sandy Hook, CT (US);
Robert S. Ferrin, Bethel, CT (US);
David Anglin, Brookfield, CT (US);
Mark Ashbolt, Newtown, CT (US);
Scott Manning, Southbury, CT (US);
Anthony Malgioglio, Stamford, 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 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 (1724×10and 5515×10pascal gage). The cell can have a supplemental laser welded vent which may activate at higher pressure levels.