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.

Date of Patent:
Nov. 03, 1981

Filed:

Dec. 27, 1979
Applicant:
Inventors:

Masuo Ogihara, Yotsukaido, JP;

Kozo Chimura, Yotsukaido, JP;

Nobuo Shinozaki, Yotsukaido, JP;

Yoichi Seki, Yotsukaido, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G04B / ; G04C / ;
U.S. Cl.
CPC ...
368222 ; 368254 ;
Abstract

A first detecting means for detecting the phase of an hour time wheel and a second detecting means adapted to cooperate with a projection provided with each of some of a plurality of minute indication leaves, said some leaves occurring at a constant interval, are provided. The first and second detecting means are associated together, and with detection of phase by the first detecting means the second detecting means is rendered capable of cooperation with the projection of a minute leaf. Subsequently, when the phase of the projection is detected by the second detecting means, an alarm device is operated.


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