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:
Mar. 04, 1986
Filed:
Sep. 02, 1983
Raymond A Tricca, West Barnstable, MA (US);
John K Foster, Harwichport, MA (US);
Packaging Industries, Inc., Hyannis, MA (US);
Abstract
An exercise mat consisting of laminated outer and core layers of closed-cell plastic foam having different selected densities. A relatively thick central layer is so configured that air chambers are formed bounded by it and one or both of the outer layers. These chambers may be constituted of air cylinders passing vertically through the central layer or of horizontal slots formed on a surface or surfaces of the central layer. The air chambers can be of any suitable predetermined size and spacing. The mat may be configured to permit folding by maintaining one of the outer layers continuous to form a hinge at a point or points where the core layer and other outer layers are discontinuous.