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:
Feb. 08, 1977
Filed:
Feb. 03, 1976
Teijin Limited, Osaka, JA;
Abstract
A stuffer box crimping apparatus for thermoplastic filamentary tow which comprises a pair of a cylindrical parallel nipping rollers forming a nip therebetween, a stuffer box and a pair of cheek members arranged in contact with outer lateral side surface of the nipping rollers, and which is capable of continuously operating over a long period of time without replacement of the cheek members and is obtained by using high durability cheek members comprising a base layer made of a hard material and a soft surface layer consisting of a soft material and having a thickness of 0.2 mm or less, which soft surface layer is formed at least on a surface portion of the base layer to be brought into contact with the outer lateral side surfaces of the nipping rollers.