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:
Dec. 29, 2020
Filed:
Feb. 28, 2018
Watlow Electric Manufacturing Company, St. Louis, MO (US);
Jack Reynolds, Maryland Heights, MO (US);
Louis P. Steinhauser, St. Louis, MO (US);
Jake Spooler, Hannibal, MO (US);
William Bohlinger, Winona, MN (US);
Watlow Electric Manufacturing Company, St. Louis, MO (US);
Abstract
A heater system includes a heater and a controller. The heater includes a first power pin made of a first conductive material, a second power pin made of a second conductive material that is dissimilar from the first conductive material, and a resistive heating element having two ends and made of a material that is different from the first and second conductive material of the first and second power pins. The resistive heating element forms a first junction with one end of the first power pin and a second junction at its other and with the second power pin. The controller is in communication with the power pins for measuring changes in voltage at the first and second junctions to determine an average temperature of the heater based on the changes in voltage.