| US 7,525,445 B2 | ||
| Life safety alarm with a sealed battery power supply | ||
| Joseph G. DeLuca, Colorado Springs, Colo. (US); and Jason M. Sharpe, Colorado Springs, Colo. (US) | ||
| Assigned to Walter Kidde Portable Equipment, Inc., Mebane, N.C. (US) | ||
| Filed on Sep. 14, 2006, as Appl. No. 11/532,010. | ||
| Application 11/532010 is a continuation of application No. 10/916922, filed on Aug. 12, 2004, granted, now 7,123,158. | ||
| Claims priority of provisional application 60/499245, filed on Aug. 29, 2003. | ||
| Prior Publication US 2007/0069904 A1, Mar. 29, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G08B 23/00 (2006.01) | ||
| U.S. Cl. 340—693.1 [340/693.5; 340/693.7; 340/693.9; 340/693.12; 361/679] | 17 Claims |
| 1. A method of operating an electronic device, the method comprising:
powering electronics to operate the electronic device with at least one battery included in a second portion;
attaching the second portion to a first portion;
automatically activating the second portion upon the attachment of the second portion to the first portion using an activate/deactivate
system; and
manually deactivating the second portion after activating the second portion, such that the second portion cannot be reactivated
and the second portion cannot be reattached to the first portion.
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