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. 03, 2018
Filed:
Jan. 26, 2016
Applicant:
Mitutoyo Corporation, Kawasaki-shi, Kanagawa, JP;
Inventors:
Hiroyuki Watanabe, Ena, JP;
Teppei Ohno, Nakatsugawa, JP;
Assignee:
MITUTOYO CORPORATION, Kawasaki-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 3/26 (2006.01); E21B 47/08 (2012.01); G01B 3/46 (2006.01); G01B 5/12 (2006.01);
U.S. Cl.
CPC ...
E21B 47/08 (2013.01); G01B 3/26 (2013.01); G01B 3/46 (2013.01); G01B 5/12 (2013.01);
Abstract
There is provided a thin-bottom type bore gauge having damping unit between a gauge head and a head main body part, and a long life. A head part of a bore gauge includes a head main body part, a measurement spherical face at one end face, and a gauge head slidably provided by penetrating an inside and an outside of the head main body part. The gauge head a spring holding groove carved in a circumferential direction at the other end side, and a compression coil spring is interposed between the spring holding groove and an inside end face of the head main body part.