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:
Sep. 26, 1978
Filed:
Aug. 29, 1977
Charles E Davis, San Fernando, CA (US);
Other;
Abstract
A water cushion particularly suited for use in supporting a human body in a seated disposition in an automobile, wheel chair and the like with a greater degree of safety. The cushion includes a flexible envelope adapted to be filled with water including a first zone configured to receive in supporting relation the buttock of a seated person and having defined therein an unbaffled chamber, and a second zone for receiving in supporting relation the thighs of the person having defined therein a plurality of chambers arranged in mutual parallelism and communicating with the chamber of the first zone, whereby the rigidity of the second zone is enhanced as the pressure applied by the weight of the person is increased.