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:
Jul. 31, 1984
Filed:
Jun. 04, 1982
Applicant:
Inventors:
Gulu N Advani, San Jose, CA (US);
Scott A Amundson, Mountain View, CA (US);
Eli M Goldfarb, Los Altos, CA (US);
Assignee:
Sierra Monitor Corporation, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 23 ; 204408 ; 340632 ;
Abstract
A gauge measuring percent oxygen by simultaneously measuring oxygen partial pressure and ambient atmospheric pressure with solid state transducers. Two electrical signals obtained from the transducers are combined in a summing amplifier in accord with an empirically determined relation to yield a percent oxygen value which is displayed. The gauge has provisions for using an internal oxygen partial pressure transducer or an external probe connected to the gauge by a cable.