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. 24, 1984
Filed:
Oct. 28, 1981
Applicant:
Inventor:
Takumi Kobayashi, Tokyo, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
3541731 ; 354212 ;
Abstract
A camera device for controlling a motor-driven, automatic film winder which winds unexposed film in a camera includes first and second electrical contacts disposed on opposite sides of a film path for detecting the absence of film in the film path. The contacts are connected to a motor drive circuit for the automatic film winder so that the automatic film winder is disabled when the absence of film is detected. The first contact is disposed in an aperture in a film pressure plate, and the film pressure plate is urged towards a rear camera portion by a spring.