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:
Nov. 23, 1993
Filed:
Apr. 27, 1992
Applicant:
Inventor:
Victor P Crome, Davenport, IA (US);
Assignee:
Litton Systems, Inc., Davenport, IA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A62B / ; A62B / ; A61M / ; F16K / ;
U.S. Cl.
CPC ...
12820524 ; 12820511 ; 12820425 ; 12820429 ; 137494 ;
Abstract
An injector mechanism uses breathing system gas to entrain cabin air to demist and defog the hood and visor of an aircrew chemical and biological warfare ('CBW') suit. The injector includes a needle valve for flow rate adjustment and an aneroid for altitude compensation. The CBW filter is downstream of the negative pressure produced by the injector to purify any ambient air drawn into the system at the negative pressure region. Positive pressure in the system downstream of the CBW filter prevents inward leakage and contamination of the demist and defog gas stream.