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. 13, 1977
Filed:
Aug. 20, 1976
Edward F Brooks, Lawndale, CA (US);
TRW Inc., Redondo Beach, CA (US);
Abstract
Continuous row average sampling of a stationary source gas stream is accomplished with the aid of a tubular sampling probe extending across the gas stream flow path in a transverse plane of the path and having sampling port means forming a longitudinally extending sampling port row through which gas is drawn into the probe. The sampling port means preferably comprise one or more ports spanned by a porous filter medium and are designed to produce a pressure drop which is substantially uniform along the port row and relatively large in comparison to any internal or external pressure changes which occur along the probe so as to maintain a uniform gas sampling rate along the port row.