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. 11, 2010
Filed:
Dec. 11, 2007
Applicants:
Junpei Maruyama, Yamanashi, JP;
Satoshi Takatsugi, Yamanashi, JP;
Inventors:
Junpei Maruyama, Yamanashi, JP;
Satoshi Takatsugi, Yamanashi, JP;
Assignee:
Fanuc Ltd, Yamanashi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 45/76 (2006.01);
U.S. Cl.
CPC ...
Abstract
When a screw equipped with a check ring is moved forward, torque acting on the screw is detected, and whether the check ring is closed is determined on the basis of the detected torque. The screw is rotated in reverse when the check ring is determined not to be closed, and the reverse rotation of the screw is stopped when the check ring is determined to be closed. The reverse rotation of the screw is thereby controlled so that the screw is rotated in reverse by an optimal amount for reliably closing the check ring.