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:
Dec. 07, 1982
Filed:
Aug. 20, 1980
Applicant:
Inventor:
Jacques Le Chatelier, Riedisheim, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01H / ;
U.S. Cl.
CPC ...
57355 ; 57119 ; 57352 ; 57354 ; 148-631 ; 427405 ; 427438 ; 428380 ; 428615 ; 2421 / ;
Abstract
In a spinning or twisting machine, a anti-balloon ring stationarily fixed around the bobbin spindle is first sand-blasted so as to produce a predetermined degree of surface roughness, then provided with a nickel coating in order to reduce undesirable excrescences followed by a copper coating in order to reduce friction and loss of yarn resistance while permitting much higher spindle speeds in respect of an acceptable rate of wear.