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. 19, 1997
Filed:
Jan. 05, 1996
Theodore G Karageorgiou, Arden, NC (US);
BASF Corporation, Mount Olive, NJ (US);
Abstract
A yarn twister mechanically twists a filamentary yarn prior to take-up so as to improve filament-to-filament cohesion. The yarn twister most preferably includes an annular housing defining an annular race in which a follower element is orbitally movable. Pressurized fluid (e.g., air) is introduced substantially tangentially into the race so as to propel the follower in an orbital path along the race. The follower includes a yarn guide element which radially extends through an annular slot in the housing into the housing's cylindrical interior region. The pressurized fluid is discharged through the slot into the cylindrical interior region of the housing so as to provide a fluid bearing for the follower. In use, the traveling yarn will thereby be guided through the yarn guide so that orbital movement of the follower will responsively impart a desirable twist to the yarn so as to increase the filament-to-filament cohesion of the yarn.