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. 21, 1978
Filed:
Jun. 28, 1977
Applicant:
Inventor:
Marine D Lynch, Beaverton, OR (US);
Assignee:
Digicon Corporation, Beaverton, OR (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01K / ;
U.S. Cl.
CPC ...
73361 ;
Abstract
The junction of a thermocouple is connected to one input of a differential amplifier disposed in a feedback configuration with a voltage-to-current converter for providing a signal current that is a measure of the temperature within a region being monitored by the thermocouple junction. A terminal of the thermocouple outside of the monitored region is directly connected through voltage dividing resistors to the differential amplifier and an active element of the converter to nullify the error introduced by ambient temperature variations.