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. 26, 1997
Filed:
Jan. 11, 1996
R David Lewis, Auburn, GA (US);
Other;
Abstract
Scuba apparatus utilizes light-weight pressure vessels, or tanks, of relatively thin aluminum wrapped with fiber in a resin binder. Since such tanks are not approved for use in water, the tanks are enclosed within a water tight enclosure, and the enclosure in pressurized to exclude all water. A connection for filling the tanks extends through the enclosure, a burst disk is provided externally of the enclosure, and connections for the scuba mask and other accessories are provided. An automatically adjusting buoyancy control may be included within the enclosure in space not occupied by the tanks. A container fits within the void, and a flexible bladder is within the container. Water can be allowed to flow into the bladder, and air under pressure fills the balance of the container and balances ambient pressure. The size of the container cannot change, and the amount of water remains fixed, so the buoyancy remains fixed.