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:
Apr. 13, 1982
Filed:
Apr. 14, 1980
Applicant:
Inventor:
Shane Harrah, Menlo Park, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63C / ;
U.S. Cl.
CPC ...
405186 ; 441 92 ; 441 96 ;
Abstract
Apparatus for maintaining the same total buoyancy of a scuba diver at all depths including means for re-setting total buoyancy and for maintaining the new buoyancy automatically. This apparatus includes a flexible air vest and an air valve system, with the air valve system being adjustable, by means of a knob, to compensation for different wetsuits, and having a failsafe feature.