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. 02, 1990
Filed:
May. 04, 1989
Humphrey A Hamlin, Yeovil, GB;
Abstract
Oxygen-enriched breathable gas for breathing by aircrew is delivered by an on-board oxygen generating system 11 utilizing molecular sieve adsorber beds 12. The breathable gas is compressed by a compressor 17 and supplied by way of an appropriately switched two-way valve 25 to a plenum storage tank 30 from which it is withdrawn for breathing by aircrew during normal flight operations. The two-way valve may be switched by electronic control means 15 to connect the compressor with an aircrew seat mounted emergency storage bottle 40 when breathable gas of maximum oxygen concentration is being delivered by the OBOGS and the pressure in the emergency storage bottle is sensed to have fallen below a designated value. This reduces the system servicing requirements and minimizes the size of the system components, in particular the adsorber beds.