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. 24, 1987
Filed:
Sep. 28, 1984
Alankar Gupta, Seattle, WA (US);
Michael B McGrady, Federal Way, WA (US);
John B Tedor, San Antonio, TX (US);
The Boeing Company, Seattle, WA (US);
Abstract
A breathing system (10) is provided for supplying physiologically acceptable breathing gas (oxygen partial pressure greater than that required to prevent hypoxia) to a pilot of an aircraft. The system (10) includes a breathing mask (12) connected to a pressure regulator (14). The pressure regulator (14) is connected to a selector valve (32). Connected to the selector valve (32) is an onboard oxygen generating system (22) and a standby oxygen supply (24). The selector valve (32) selects breathing gas from one of these two sources. Also included in the system is an emergency oxygen bottle (26) connected to the regulator (14). Ambient air is supplied to the mask (12) by an ambient airflow duct (20) if for some reason none of the breathing gas sources (22, 24, 26) provide breathing gas to the regulator (14).