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:
Nov. 17, 1987
Filed:
Dec. 01, 1986
Applicant:
Inventors:
Assignee:
Nippon Kogaku K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
354273 ; 35428911 ;
Abstract
In a photographing lens barrel having a manual operation ring and a stationary ring, a device for locking said manual operation ring is provided. The locking device includes a lock member projecting from one of said two rings, a lock part formed on the other ring to engage with said lock member, and a lock-operating member movable between a lock position and an unlock position. The lock operating member is biased toward said locking position by spring means and is held in said unlock position by limiting means.