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:
Jun. 08, 2021
Filed:
Sep. 23, 2016
Applicant:
Hitachi High-technologies Corporation, Tokyo, JP;
Inventors:
Katsuhiro Aritome, Tokyo, JP;
Ryusuke Kimura, Tokyo, JP;
Motohiro Yamazaki, Tokyo, JP;
Go Nakajima, Tokyo, JP;
Naomichi Kawasaki, Tokyo, JP;
Assignee:
HITACHI HIGH-TECH CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/447 (2006.01); B05C 7/08 (2006.01); B29C 45/50 (2006.01); G01N 1/14 (2006.01);
U.S. Cl.
CPC ...
G01N 27/44782 (2013.01); B05C 7/08 (2013.01); G01N 27/447 (2013.01); G01N 27/44743 (2013.01); G01N 27/44756 (2013.01); B01L 2400/0421 (2013.01); B29C 45/5008 (2013.01); G01N 2001/1481 (2013.01);
Abstract
This drive screw device is provided with: a drive screw; a drive unit which causes the drive screw to rotate; a slider which moves along the drive screw by means of the rotation of the drive screw; and an external load which is provided on the drive screw and applies a rotational load to the drive screw. By this means it is possible to provide a drive screw device with which there is little pressure variation even if a frictional force varies.