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. 25, 1989
Filed:
Jul. 08, 1988
Hiroshi Taniguchi, Chiba, JP;
Mamiya Camera Co., Ltd., Tokyo, JP;
Abstract
A photographing number change-over device for a two lens camera having two photographing lenses equipped with shutters, respectively, is capable of photographing two pictures on a film. The photographing number change-over device comprises a driving member moving to two different positions alternately every time shutter charge is effected, a light cut-off plate rotatable about an axis substantially in parallel with optical axes of the photographing lenses, a regulating member engaging the light cut-off plate and detachably engaging the driving member for anchoring the light cut-off plate at either of first and second positions where the light cut-off plate shuts off either of the two photographing lenses and anchoring the light cut-off plate at a third position where the light cut-off plate shuts off neither of the two photographing lenses, and a change-over member for causing the regulating member and driving member to engage and disengage from each other. The photographing number change-over device further comprises a counter device for displaying the number of photographing times, which comprises a counter dial device for advancing and retracting marks one by one to be displayed in a counter window and respectively interlocking with the change-over member and the driving member, and a counter window opening member for concealing and revealing the marks to be displayed in the counter window interlocking with operations of the change-over member.