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:
Dec. 26, 1978
Filed:
Feb. 16, 1977
Applicant:
Inventors:
Hiroshi Iwata, Osaka,, JP;
Tetsuo Yamaoka, Osaka,, JP;
Assignee:
West Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ; H01H / ;
U.S. Cl.
CPC ...
354 / ; 354 / ; 354127 ; 200308 ;
Abstract
In a camera of the type including an electronic flash light unit with a relatively large-capacity capacitor and an electronic shutter which are supplied with power from a common power source battery, the power source battery is checked to determine whether it is in good condition for service. When the battery is electrically connected to the flash light unit, the operation of the battery checker to detect the voltage across the battery, is prevented by either a mechanical switch or a slide cover that covers the indication of the battery checker.