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:
Jan. 16, 1979
Filed:
Nov. 03, 1977
Applicant:
Inventors:
Thomas L Bohl, Madison, OH (US);
Robert E Pocock, Highland Heights, OH (US);
Assignee:
Bailey Meter Company, Wickliffe, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 23 ; 7342 / ;
Abstract
A gas sampling system is provided having a combustibles detector and an oxygen detector supplied from a common sample line by their own individual aspirators. The aspirators are sized to allow the one aspirator to overpower the second aspirator whenever the common sample inlet is blocked a predetermined amount to thereby cause oxygen rich supply air to flow through the oxygen detector causing the oxygen detector to register an abnormal condition as an indication of blocked sample inlet.