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. 27, 1979
Filed:
Mar. 21, 1978
Hermann Gasser, Zurich, CH;
Karl Curiger, Pfaffikon, CH;
Luwa AG, Zurich, CH;
Abstract
A yarn rupture-suction installation or broken end-collecting installation for the drafting systems or drafting gears of spinning machines, comprising a respective suction head for each drafting system connected with an air pressure sink and having a substantially slot-shaped suction opening associated with a delivery or feed roller of each drafting system. The suction opening extends from one end situated close to the spinning triangle to an end situated closer to an air pressure sink in the direction of flow of the air. The method of operating such installation and for preventing clogging of the suction head thereof contemplates imparting to a ruptured yarn piece or broken end leading to the rupture location a different position than the path of travel of the fiber material which is further delivered to the drafting system.