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:
Jan. 25, 1977
Filed:
Jan. 29, 1976
Applicant:
Inventors:
Wolfgang Ganter, Schramberg, DT;
Albert Ginter, Lauterbach, DT;
Assignee:
Gebruder Junghans GmbH, , DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04C / ; H01L / ; G08B / ;
U.S. Cl.
CPC ...
58 3 / ; 58 55 ; 58 575 ; 310-91 ; 3403 / ; 340388 ;
Abstract
A watch includes a housing including an apertured sound transmitting housing portion. A diaphragm is carried by the housing. A piezo electric element is carried by one surface of the diaphragm and is oscillatable in response to electrical excitation. Excitation circuitry is connected between the piezo electrical element and a power source of a watch in producing an excitation signal to oscillate the piezo electric element. The diaphragm comprises an electrically insulative material. The excitation circuit is carried by the one surface of the diaphragm, thereby eliminating the need for additional components to carry the excitation circuit.