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. 04, 1998
Filed:
Apr. 29, 1996
Siebolt Hettinga, Des Moines, IA (US);
Other;
Abstract
A seat unit is provided comprising a base structure and at least one cushion layer comprised of a random mesh of plastic filament between the base structure and the cover layer. The cushion layer not only provides adequate firmness, but has adequate air circulation therethrough. The perimeter of the cushion may be molded in with a plastic base structure, and there may be multiple cushion layers where each layer has a different density. The multiple layers of cushioning where each layer has a different density further allow the seat to have both a specifically desired firmness and air circulation therethrough. Also provided is a method for molding in the cushioning with the base structure as well as molding in a spring layer and a cover layer.