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:
Oct. 17, 1978
Filed:
Nov. 09, 1976
Gustav Brehm, Wattwil, CH;
Heberlein Maschinenfabrik AG., Wattwil, CH;
Abstract
Friction false-twisters for textile yarn are described in which the yarn passes sinuously and in zig-zag fashion past the edges of overlapping circular rotating members distributed between and fixed to three parallel rotating shafts having their axes parallel and located, in plan view, at the corners of an equilateral triangle. The intermediate members are simple rotary discs but the member that receives the yarn and that from which it is withdrawn are hemispheres or hemiellipsoids respectively on two of the shafts, or both on the same shaft, and facing in opposite directions. The yarn is fed perpendicular to the shaft axis to the convex end of one hemisphere and withdrawn from the convex end of the other hemisphere either perpendicular to or at an angle between 50.degree. and 80.degree. to the shaft axis. All three shafts rotate at the same speed in the same sense.