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:
May. 03, 1977
Filed:
May. 08, 1975
Applicant:
Inventor:
Toshimi Hayasaka, Hino, JA;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ; G02B / ;
U.S. Cl.
CPC ...
74 1054 ; 7466 / ; 350 86 ;
Abstract
A coarse-fine focusing device for precision machinery capable of accurate coarse and fine adjustments free from any play in which a gear fixed to a pinion shaft having a pinion is connected to a gear fixed to a fine adjustment shaft, to which a fine adjustment handle is mounted, by a reduction gear mechanism provided in a coarse adjustment handle which is mounted coaxially with said fine adjustment handle.