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:
Jan. 30, 1979
Filed:
Dec. 09, 1976
Applicant:
Inventors:
Mineo Yamauchi, Kawasaki, JP;
Masao Nakahara, Kawasaki, JP;
Assignee:
Kabushiki Kaisha Mitutoyo Seisakusho, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ; G01B / ;
U.S. Cl.
CPC ...
3316 / ; 3317 / ;
Abstract
The present invention relates to a hole gauge for measuring the inner diameter of a hole, which gauge comprises an axially movable spindle; a pair of tapered surfaces movable together with said spindle; a pair of contact points radially movable with respect to said spindle, guided by said pair of tapered surfaces; and a support arm for said pair of contact points, the outer surfaces of said contact points and said support arm being movable in parallel radially of said spindle.