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:
Aug. 06, 1985
Filed:
Jul. 02, 1984
Applicant:
Inventors:
Clayton J Bossart, Monroeville, PA (US);
Thomas C Fatur, Delmont, PA (US);
Assignee:
Mine Safety Appliances Company, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
422 96 ; 73 2 / ; 324D / ; 422 98 ;
Abstract
A catalytic gas detector circuit in which a resistive gas detector element is common to two bridge circuits, and wherein the resistance and temperature of the detector element are maintained essentially constant. This permits the use of a dynamic compensator element without encountering hysteresis effects and improves the response time of the circuit.
Bossart, Clayton. (1985). Circuit for constant temperature operation of a catalytic combustible (U.S. Patent No. 4533520). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4533520
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile