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. 27, 1977
Filed:
Feb. 21, 1975
Applicant:
Inventors:
Meiji Anahara, Kyoto, JA;
Takayoshi Fujita, Takatsuki, JA;
Assignee:
Toyo Boseki Kabushiki Kaisha, Osaka, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01H / ;
U.S. Cl.
CPC ...
57 3 / ; 57 3 / ; 5715 / ;
Abstract
A yarn of thermoplastic synthetic fibers is false twisted and during the false-twisting operation the number of false twists being imparted to the yarn is estimated with high accuracy. The estimation of the number of false twists is carried out by measuring, in a section within the twisting zone of the false-twisting apparatus, the speed of the yarn being processed under a normal operational condition and by the estimated number of false twists the yarn is advantageously quality controlled.