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. 30, 1997
Filed:
Oct. 20, 1994
Applicant:
Inventor:
Charles M Eckman, Dallas, PA (US);
Assignee:
Energy Convertors, Inc., Dallas, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24H / ; F24H / ;
U.S. Cl.
CPC ...
392340 ; 392341 ; 392441 ; 392451 ; 392497 ; 126361 ;
Abstract
Hot water heaters are provided which contain improved temperature control devices and multiple resistance wire heating elements. The temperature control devices selectively deactivate at least one of the resistance wires to conserve electricity and preserve a steady-state hot beverage or hot water service temperature.