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:
Apr. 15, 1997
Filed:
Aug. 10, 1994
Applicant:
Inventors:
Kenneth K Ko, West Grove, PA (US);
James B Krug, Pequea, PA (US);
Assignee:
Armstrong World Industries, Inc., Lancaster, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; D01D / ;
U.S. Cl.
CPC ...
428 361 ; 428 363 ; 428 369 ; 428 3691 ; 2642093 ;
Abstract
Described herein are textile fiber-working units and methods for preparing them. These units have at least one layer made of a mixture of a polyamide, a crosslinked acrylonitrilebutadiene rubber, a plasticizer and a crosslinking agent. This layer forms a ring and has an outer fiber-working surface which forms an endless path for processing fibers. The units are made by combining the ingredients to form a uniform blend which is then worked into a shape, heated to crosslink the rubber, and then producing the fiber-working unit using appropriate finishing techniques such as cutting, grinding, and polishing.