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. 29, 1984
Filed:
Oct. 25, 1982
Charles W Brouwer, Greenwich, RI (US);
Larry C Cowan, York, SC (US);
Leesona Corporation, Warwick, RI (US);
Abstract
An improved solenoid actuated yarn clamp for controlling the flow of a moving strand of yarn particularly in conjunction with a fluid weft insertion loom. The improved clamp is double acting, being displaced positively between an operative yarn clamping position and an inoperative position releasing the yarn for further movement. The actuation of the clamp in both directions preferably occurs in two stages in which a relatively movable portion of the armature is first attracted into engagement with the energized solenoid, resulting in enhancement of the flux path of the solenoid, causing movement of the remainder of the armature. A preferred electronic circuit for regulating the actuation of the improved clamp is also disclosed which permits the adjustment of the clamping and nonclamping portions of the operative cycle of the clamp.