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. 20, 1979
Filed:
Jun. 29, 1977
Applicant:
Inventors:
Charles M Willwerth, Newburyport, MA (US);
John P Silvia, Tewksbury, MA (US);
Assignee:
Compo Industries Inc., Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; D06N / ;
U.S. Cl.
CPC ...
428151 ; 26 6 / ; 28163 ; 264232 ; 264284 ; 264289 ; 264340 ; 264D / ; 428904 ; 428910 ;
Abstract
A diagonal bias-stretching device and a method of enhancing surface grain of imitation-leather material with such device, which device comprises a reciprocating roller moving between lateral positions on either side of a line of advance of an imitation-leather material, to provide for alternating diagonal stretching and relaxing of the material as it moves under tension in the line of advance.