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. 17, 2016
Filed:
Oct. 17, 2013
Applicant:
Mitutoyo Corporation, Kanagawa, JP;
Inventors:
Masaki Kurihara, Kanagawa, JP;
Yasuhiro Takahama, Kanagawa, JP;
Masanori Arai, Kanagawa, JP;
Tomoyuki Miyazaki, Kanagawa, JP;
Assignee:
MITUTOYO CORPORATION, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 5/016 (2006.01); G01B 5/012 (2006.01); G01B 21/04 (2006.01); G01B 7/012 (2006.01);
U.S. Cl.
CPC ...
G01B 5/016 (2013.01); G01B 5/012 (2013.01); G01B 7/012 (2013.01); G01B 21/042 (2013.01);
Abstract
A double cone stylus includes a shank and a double cone-shaped tip attached to the tip end of the shank, the double cone-shaped tip being a rotationally symmetric body obtained by rotating a triangle having a base extending along the shank around the shank as the symmetric rotation axis. The double cone stylus allows the shape of an inner wall surface of a measurement object with the inner wall surface retracted from an upper reference plane to be measured from above.