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:
Apr. 24, 1990
Filed:
Oct. 07, 1988
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
The coarse/fine adjustment coaxial handle for feeding microscope stage comprises a feed screw shaft, a tubular member rotatably fitted over the feed screw shaft and equipped with a disc plate fixed thereto, a fine adjustment handle rotatably fitted over the tubular member and surrounding the disc plate, a reduction gear mechanism interposed between the feed screw shaft and the fine adjustment knob, a first frictional resistance imparting mechanism for imparting frictional resistance to the tubular member, second frictional resistance imparting mechanism for imparting frictional resistance to the disc plate, and a coarse adjustment handle pivoted to an eccentric position on another disc plate connected to the disc plate. The coarse/fine adjustment coaxial handle permits very fine stage feeding without fail and coarse adjustment smoothly with simple operations.