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. 27, 1985
Filed:
Jun. 11, 1984
Applicant:
Inventor:
Alan Parker, Bolton, GB;
Assignee:
Hollingsworth (U.K.) Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01H / ;
U.S. Cl.
CPC ...
57401 ;
Abstract
A friction spinning apparatus and process use at least one perforated roller enclosing a suction sleeve having the static pressure applied along its suction slot changing between a tip end of the fibre bundle forming the yarn and a downstream location of the fibre bundle whereby the tip end is subjected to a weaker suction effect holding it against the surface than is the stronger downstream part of the fibre bundle.