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:
Dec. 13, 2011
Filed:
Jan. 31, 2007
Richard L. Bouffard, Litchfield, CT (US);
Peter M. Lewis, Avon Lake, OH (US);
Huaxin LI, Rochester Hills, MI (US);
Paul R. Elsdon, Jr., Wolcott, CT (US);
Richard J. Sosnovich, Jr., Beacon Falls, CT (US);
Warren Emerson Sweet, Naugatuck, CT (US);
Robert E. Ray, Jr., Strongsville, OH (US);
James X. Wu, North Olmsted, OH (US);
Richard L. Bouffard, Litchfield, CT (US);
Peter M. Lewis, Avon Lake, OH (US);
Huaxin Li, Rochester Hills, MI (US);
Paul R. Elsdon, Jr., Wolcott, CT (US);
Richard J. Sosnovich, Jr., Beacon Falls, CT (US);
Warren Emerson Sweet, Naugatuck, CT (US);
Robert E. Ray, Jr., Strongsville, OH (US);
James X. Wu, North Olmsted, OH (US);
Eveready Battery Company, Inc., St. Louis, MO (US);
Abstract
An electrochemical cell with a pressure relief vent formed in a metal plate disposed in at least one of the closed end and the open end of the container. The pressure relief vent has an annular ring that includes a reduced thickness groove, interrupted in at least two places by unthinned sections of the plate. When the vent opens to relieve pressure from within the cell, the area of the plate within the annular ring remains attached to the remainder of the plate by at least one of the unthinned sections. A can with such a pressure relief vent formed in the can bottom is useful as an electrochemical cell container.