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:
Apr. 06, 1982
Filed:
May. 14, 1979
Applicant:
Inventor:
Jeff M Goldsmith, Medford, MA (US);
Assignee:
GCA Corporation, Bedford, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219497 ; 219501 ; 219494 ; 236 / ; 373 77 ;
Abstract
Disclosed is a vacuum furnace temperature controller for the stable regulation of temperature over a wide range of temperatures. The control loop includes a multiplier responsive to the desired temperature which modifies the overall loop gain and the maximum power which may be applied to the furnace heater as a function of the desired temperature.