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. 09, 1977
Filed:
Nov. 29, 1976
Josef Raschle, Butschwil, CH;
Heberlein Maschinenfabrik AG, , CH;
Abstract
A twist tube for a false-twisting device for texturing textile yarns has an enlarged end in which the bore has an oblong cross-section with both the major and minor axes substantially longer than the bore of the main portion of the tube. The thread guide pin extends in the direction of the minor axis between flat sides of the bore which are joined at each end by arcuate sides. Two circular, coaxial openings extend from outside the enlarged end to the arcuate sides. The oblong shape and these openings assist the threading of the twist tube. The thread guide pin is displaced laterally with respect to the longitudinal axis of the main portion of the tube by a fraction of the pin diameter. The axis of the openings, which is perpendicular to the pin axis, is displaced from the pin axis by a similar fraction, towards the main portion of the tube.