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.

Date of Patent:
Jan. 27, 1976

Filed:

Jul. 05, 1974
Applicant:
Inventors:

Noboru Shindo, Maikata, JA;

Hiroshi Hashizume, Kyoto, JA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01H / ;
U.S. Cl.
CPC ...
57 773 ; 57 7745 ;
Abstract

False twisting device for producing crimped filamentary yarns by introducing the filament into a cylindrical hollow of a hollow spindle, winding it around a twisting pin mounted transversely in the cylindrical hollow and taking out the filament therefrom, wherein a center point of the minimum diameter portion of the twisting pin is displaced from a rotational center axis of the hollow spindle, both in the vertical and parallel directions as related to the axial line of the twisting pin respectively, so that the filament rotated together with the hollow spindle therein is positioned concentrically with the rotating center of the hollow spindle. Said hollow spindle is mounted in a housing and supported by air bearings and it is rotated by applying compressed air to turbine blades which is provided on the circumference of the cylindrical hollow.


Find Patent Forward Citations

Shindo, Noboru. (1976). False twisting spindle (U.S. Patent No. 3934398). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3934398

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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