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:
Aug. 18, 1998
Filed:
Sep. 27, 1996
Applicant:
Inventors:
Iwao Hasegawa, Tokyo, JP;
Toshiyuki Kidokoro, Tokyo, JP;
Assignee:
Micron Instrument Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D03D / ; D03D / ;
U.S. Cl.
CPC ...
139452 ; 139450 ; 242 4701 ; 226150 ; 226154 ;
Abstract
A weft feeding device which alleviates an excessive tension acting on the weft upon feeding of the weft and inhibits breakage of the weft includes a gripper to grip the weft at prescribed times, a length measuring roller located downstream of the gripper, and a pinch roller to hold the weft against the roller at prescribed times. Opening and closing of the gripper is linked with movement of the pinch roller into and out of contact with the length measuring roller. A linear or a rotary solenoid is provided to operate the pinch roller and the gripper by a pulse width modulation method or a linear method.