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:
Apr. 03, 1979
Filed:
Jun. 03, 1977
Applicant:
Inventor:
Ronald L Koepp, Sunnyvale, CA (US);
Assignee:
Fairchild Camera and Instrument Corporation, Mountain View, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340401 ; 340402 ; 3403 / ;
Abstract
An alarm sounder for use with solid state integrated clock circuits employs an amplifying transistor controlled by the clock alarm output signal that contains an A.C. component to control the current through a coil, the core laminations of which magnetically actuate a metal reed that is audibly vibrated by utilizing a spring against the core and/or an adjacent member at the frequency of the A.C. component.