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:
Nov. 08, 2011
Filed:
Oct. 16, 2008
Travis Silver, Colorado Springs, CO (US);
Stan Burnette, Colorado Springs, CO (US);
Matthew J. Buchholz, Canon City, CO (US);
Travis Silver, Colorado Springs, CO (US);
Stan Burnette, Colorado Springs, CO (US);
Matthew J. Buchholz, Canon City, CO (US);
Walter Kidde Portable Equipment Inc., Mebane, NC (US);
Abstract
When a rechargeable battery of a life safety device reaches its end of life, the life safety device provides an audible signal indicating that replacement is required. When the device is disconnected from line power, the rechargeable battery still contains a significant amount of energy. The device automatically begins controlled discharge the battery until the stored energy has been reduced to a safe level for disposal of the life safety device and its battery.