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. 01, 1988
Filed:
May. 06, 1986
Applicant:
Inventor:
Leslie Richardson, Ilkley, GB;
Assignee:
Flexitallic Limited, West Yorkshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21C / ; B21C / ;
U.S. Cl.
CPC ...
72146 ; 72148 ;
Abstract
A spiral wound gasket is made by progressively winding strip material between co-operating rollers to form a gasket section, the method of manufacture including the step of separating the rollers at a predetermined rate to give a predetermined rate of growth for the gasket section formed between them.