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. 24, 2015
Filed:
Apr. 01, 2013
Brk Brands, Inc., Aurora, IL (US);
Robert Leon Dickerman, Northfield, MA (US);
BRK Brands, Inc., Boca Raton, FL (US);
Abstract
In an apparatus that issues maintenance warnings, such as the low-battery audio warnings issued by smoke and carbon monoxide detectors, a system for insuring that warnings are issued only at times of day when it is likely that residents will be awake, so as not to interrupt sleep. In the simplest embodiments, the system may comprise an oscillator, a 24-hour timer, and control logic, most of which may be contained in a microcontroller. One embodiment allows manual selection of the time of day of inhibiting warnings by pressing a pushbutton once. In other embodiments the starting time for the issuing a warning is close to the time of day at which the battery was installed, or the time of day that the detector was last tested. The latter embodiments are automatic, and require no user configuration.