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:
Jun. 08, 2010
Filed:
Oct. 30, 2007
Herbert Baker, Philadelphia, PA (US);
Shawnfatee M. Bridges, Graterford, PA (US);
Derrick U. Hall, Graterford, PA (US);
Joseph J. Kindler, Graterford, PA (US);
Herbert Baker, Philadelphia, PA (US);
Shawnfatee M. Bridges, Graterford, PA (US);
Derrick U. Hall, Graterford, PA (US);
Joseph J. Kindler, Graterford, PA (US);
Other;
Abstract
A smoke detector system employs smoke detectors that enter a 'lockout period' following receipt of an alarm signal, during which time a detector will not receive a RF alarm signal and will not transmit a RF alarm signal after a certain period of time if that detector does not detect, or no longer detects, a dangerous condition. The lockout period is of sufficient duration to prevent re-transmission of a RF alarm signal by a detector even though it may have received a RF alarm signal from another detector(s). Hence, after a short period of time, no RF alarm signals will be received or transmitted and each detector resets, unless a dangerous condition is detected.