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:
Nov. 19, 1991
Filed:
Sep. 20, 1989
Applicant:
Inventors:
Hansulrich Eichengerger, Winterthur, CH;
Heinz Clement, Winterthur, CH;
Assignee:
Rieter Machine Works, Ltd., Winterthur, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01G / ;
U.S. Cl.
CPC ...
19150 ; 19157 ; 1915 / ;
Abstract
The device for increasing the cohesion length of the slivers is embodied by a pair of calendar rollers. Each calendar roller has a plurality of transversely disposed protuberances of rounded shape for interengaging in spaced relation with each other in order to slightly crimp a sliver passing through the gap between the rollers. The protuberances are adapted to one another in gear-like manner.