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. 15, 1981
Filed:
May. 02, 1979
Applicant:
Inventors:
Ali A Seireg, Madison, WI (US);
Amr M Baz, Madison, WI (US);
Assignee:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63C / ; A62B / ;
U.S. Cl.
CPC ...
12820424 ; 12820426 ; 12820519 ; 1374842 ; 137804 ; 1376252 ; 137596 ;
Abstract
A pressure regulator for breathing apparatus which utilizes a low pressure control signal to control the inhalation of gases through the regulator. A first low pressure control valve is actuated by the diver's inhalation effort to provide a pressure signal which is used to control a main valve which supplies the breathing mixture input to the diver. Separate exhalation exhaust assist may be provided which utilizes energy from the air tank to help eject the diver's exhaust gases from the regulator.