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:
Jul. 20, 2010
Filed:
Jul. 17, 2008
Applicants:
Hiroshi Imamura, Yamanashi, JP;
Wataru Shiraishi, Yamanashi, JP;
Satoshi Takatsugi, Yamanashi, JP;
Inventors:
Assignee:
Fanuc Ltd, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 45/77 (2006.01);
U.S. Cl.
CPC ...
Abstract
Screw rotation speeds and screw rotating torques are measured at predetermined time intervals during metering and substituted into a previously-assumed function to determine a maximum screw rotating torque at each screw rotation speed. An allowable upper limit of screw rotating torque is set for each screw rotation speed on the basis of the determined maximum screw rotating torque. If a screw rotating torque exceeding the allowable upper limit is detected during metering after the allowable upper limit is set, the screw rotation is stopped or changed.