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. 03, 1981
Filed:
Oct. 03, 1979
Applicant:
Inventors:
John G Richardson, Idaho Falls, ID (US);
Robert W Soldat, Shelley, ID (US);
Assignee:
Envirotronics, Phoenix, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23N / ; G05D / ;
U.S. Cl.
CPC ...
236 / ; 165 12 ; 236 47 ; 236 51 ;
Abstract
The problem of adequate flexibility and reliability in apparatus for controlling temperatures in a plurality of zones is solved by a clock and digital logic circuits, together with a temperature sensing circuit portion effective in combination with platinum film-type temperature sensors, which produce effective sensing over a wide range of temperatures. The control apparatus automatically effects two temperature sets per twenty-four hour period for each zone with an optional temperature set for weekends for all zones and has a display of current time and a display of temperature for each zone.