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:
Oct. 14, 1980
Filed:
Dec. 13, 1978
Dennis Hart, Hacienda Heights, CA (US);
Masaru Shiroishi, Buena Park, CA (US);
Under Sea Industries, Inc., Compton, CA (US);
Abstract
A scuba diver uses air not only for breathing, but also to inflate a buoyancy jacket or vest. A single mechanism controls the flow of air for buoyancy and for breathing. The mechanism is held by a mouthpiece and includes (1) a demand regulator, (2) a breathing chamber between the regulator and the mouthpiece, (3) a pruge or one way exhaust valve connected to the breathing chamber, (4) a buoyancy chamber communicating with an inflation/deflation hose for the jacket or vest, (5) a first manual control valve for sending relatively high pressure air to the buoyancy chamber and (6) a second composite manual control valve that in its initial position opens the buoyancy chamber to the breathing chamber for exhaust of air through the purge valve and consequent deflation of the buoyancy jacket or vest, and that in its final position closes the purge valve for oral inflation or emergency breathing.