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:
Sep. 24, 1991
Filed:
Aug. 07, 1989
Applicant:
Inventor:
Luigi Pezzoli, Leffe, IT;
Assignee:
Vamatex S.p.A., Villa Di Serio, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D03D / ;
U.S. Cl.
CPC ...
139450 ; 1393702 ; 139452 ; 2421 / ;
Abstract
In a system for automatically controlling the tension of weft yarns fed to a loom with continuous weft feed, the extent of braking of the weft yarn is controlled based on signals output from a device for measuring weft yarn tension. Specifically, signals from a weft yarn tension measuring device are output to an electronic interface unit, which processes those signals and directs an actuator to brake the weft yarn more heavily when the detected tension is below a predetermined level, and less heavily when the detected tension is above a predetermined level.