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:
Jul. 23, 1991
Filed:
Jul. 23, 1990
Ichiro Nemoto, Yotsukaido, JP;
Takahito Otora, Yotsukaido, JP;
Seikosha Co., Ltd., , JP;
Abstract
A focal-plane shutter for use in a camera. The shutter has a driving lever which can be driven with a substantially uniform force. The shutter comprises a closing member for actuating closing blades, the driving lever that urges the closing member to perform an exposure operation, a tension spring connecting the driving lever with the closing member, a brake lever, and an anchoring lever. The brake lever has a retaining portion that retains the closing member in its exposure end position. The anchoring lever has an anchoring portion which, when the closing member is in its exposure end position, moves out of the operating range of the closing member.