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. 10, 1987
Filed:
Mar. 01, 1985
Applicant:
Inventor:
Robert J Christenson, Flushing, MI (US);
Assignee:
GMI Engineering & Management Institute, Flint, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63G / ;
U.S. Cl.
CPC ...
272 87 ; 5247 ; 114219 ; 293122 ;
Abstract
An elastic cushion formed of a elastic cushion tube and a supporting frame. The cushion tube is slit axially to create a pair of slit edges which are elastically expanded to create a cushion tube of C-shaped cross section. The slit edges of the cushion tube are retained in a pair of spaced-apart axial grooves formed in the frame member so that the cushion tube will elastically deform when loaded in a region generally opposite the expanded slit.