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:
Aug. 10, 1993
Filed:
May. 10, 1991
Applicant:
Inventors:
Muneharu Urai, Akishima, JP;
Masagoro Toyoshima, Akishima, JP;
Assignee:
Tachi-S Co., Ltd., Akishima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47C / ;
U.S. Cl.
CPC ...
5481 ; 5475 ; 29745226 ;
Abstract
A cushion body including a continuous coil-spring assembly which comprises coil portions and linear connection portions, and a method for forming such cushion body. The continuous coil-spring assembly is pressingly inserted into a jig, and both jig and coil-spring assembly are subject to a low-temperature annealing treatment. Thus-treated coil-spring is then foamed with a urethane base material in a mold, so as to produce such sort of cushion body.