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:
Apr. 18, 1989

Filed:

May. 12, 1987
Applicant:
Inventors:

Frantisek Burysek, Usti nad Orlici, CS;

Jiri Sloupensky, Usti nad Orlici, CS;

Miroslav Boucek, Usti nad Orlici, CS;

Frantisek Hortlik, Usti nad Orlici, CS;

Jiri Bace, Usti nad Orlici, CS;

Zdenek Silar, Chocen, CS;

Jiri Kutlvasr, Chocen, CS;

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01H / ; D01H / ;
U.S. Cl.
CPC ...
57263 ; 57302 ;
Abstract

A process of automatic yarn spinning-in in the spinning unit of an open-end rotor spinning machine of an automatic service device provided with a control unit having a programmable microprocessor control system for controlling the spinning-in cycle and the automatic adjustment of spinning-in parameters modified according to successive verifying tests which are performed by the automatic service device which is either arranged in the individual spinning units, or as a unit traveling along the machine. By successive tests, spinning-in parameters are adjusted for an interval for yarn return to the spinning rotor as well as for determining the start of fiber feeding. The spinning-in parameters can be corrected by further verifying tests in spinning units with various dynamic characteristics.


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Burysek, Frantisek. (1989). Method of and apparatus for controlling the yarn spinning-in in the (U.S. Patent No. 4821502). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4821502

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