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:
Mar. 17, 1992
Filed:
Nov. 21, 1989
Applicant:
Inventor:
Thomas G Green, Phoenix, AZ (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ; A62B / ; A62B / ; A62B / ;
U.S. Cl.
CPC ...
12820418 ; 12820213 ; 12820025 ; 12820525 ; 12820524 ;
Abstract
The invention provides an air delivery system for emergency workers, wherein the air delivery system is adapted to be used with a water hose. The system includes a source of compressed air fluidically connected to the water hose to purge water from the water hose. Pressure adjusting means adjust the compressed air pressure to less than approximately 300 psig. Means are provided for further reducing the air pressure, after the water is purged, to a pressure in the range of approximately 8-50 psig. The system further includes means for transferring air from the air hose to a breathing cavity of the worker.