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:
Aug. 11, 2009
Filed:
Mar. 30, 2007
Applicant:
Yukitsugu Nakamura, Sagamihara, JP;
Inventor:
Yukitsugu Nakamura, Sagamihara, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A guide roller projects from the side surface of an optical system body. The optical system body is held to be elevatable within a predetermined range along an arcuate guide member. A weight balancing means incorporating a spring attaches to the lower corner on the side surface of the optical system body. A hook attaches to one end of the arcuate guide member. A pulley attaches to the upper end of the arcuate guide member. One end of a wire fixes to the hook. The spring of the gravity balancing means pulls the wire through the pulley.