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:
Oct. 18, 1977
Filed:
Jul. 03, 1975
Kayoshi Tsujimoto, Osaka, JA;
Minolta Camera Kabushiki Kaisha, Osaka, JA;
Abstract
A motor-driven apparatus for use in a camera equipped with a shutter device which is normally maintained in a close position after the termination of an exposure and adapted to be shifted to an open position in response to the shutter release operation, comprises a motor for driving the film; a switch opened during the transportation of the film and closed upon the termination of the transportation of the film; an electric circuit for producing signals only when the shutter device is shifted from the open position to a closed position; and a semi-conductor control circuit connected in series with the switch between the motor and the cells, the semi-conductor control circuit being rendered conductive by signals from the electric circuit and rendered non-conductive when the switch is opened.