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:
Nov. 10, 1992
Filed:
Feb. 01, 1991
Applicant:
Inventor:
Zenji Tamura, Kanazawa, JP;
Assignee:
Tsudakoma Kogyo Kabushiki Kaisha, Kanazawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318778 ; 318431 ; 318807 ; 318812 ;
Abstract
A loom operating apparatus and method involving the use of an inverter device interposed between loom motor and power supply. The inverter device is controlled so as to make the motor torque greater than a rated value from immediately after start-up up to the completion thereof, and equal to the rated value thereafter. This eliminates contact wear and other disadvantages associated with the use of contact circuits, and allows the loom to be started up free of staggered weaves.