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:
Nov. 26, 2002
Filed:
Jan. 30, 2001
David A. Arias, Virginia Beach, VA (US);
Gray Matter Holdings, LLC, Baltimore, MD (US);
Abstract
A collapsible flotation device has an uncollapsed configuration and a collapsed configuration. The device includes a spring which is forced to coil in upon itself by folding to achieve the collapsed configuration of the device and which is biased towards the uncoiled configuration. The spring is located along the perimeter of the device in a pocket formed along the perimeter of a panel of flexible material or on the external perimeter of the device. Also located within the pocket are one or more inflation chambers which are inflated to provide buoyancy. Additional or alternate pockets which include inflatable chambers may be located in the central portion of the flexible panel.