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:
Sep. 24, 1985
Filed:
Nov. 22, 1983
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In an apparatus such as a camera which automatically performs film winding and rewinding by means of a motor, an automatic rewinding circuit is arranged to detect interruption of a winding action by means of a timer circuit which is set at a length of time longer than a predetermined length of winding time. Upon detection of the interruption, the automatic rewinding circuit automatically shifts the winding action to a rewinding action. The apparatus is also provided with a memory storage which mechanically memorizes the operating state of the automatic rewinding circuit or with a forced rewinding device which permits a rewinding operation irrespective of the operating state of the automatic rewinding circuit.