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. 24, 2000
Filed:
Oct. 30, 1997
Akihiro Namai, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A power transmission apparatus adapted for an apparatus such as a camera or the like includes a first toothed wheel having teeth at least one predetermined tooth of which differs in tooth thickness from at least one different tooth of the teeth, a second toothed wheel which meshes with the first toothed wheel, the second toothed wheel having tooth spaces at least one predetermined tooth space of which meshes with the at least one predetermined tooth of the first toothed wheel and differs in space interval from at least one different tooth space of the tooth spaces, a determination device which determines a rotating position of the first toothed wheel, and an operating device which performs a predetermined operation according to a rotating position of the second toothed wheel.