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:
Oct. 20, 1987
Filed:
May. 29, 1986
Applicant:
Inventors:
James B McGhee, El Cajon, CA (US);
Joseph W Egan, El Cajon, CA (US);
Leslie C Hill, La Jolla, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F22B / ; F24H / ;
U.S. Cl.
CPC ...
236 / ; 237 19 ;
Abstract
The control utilizes sensed gas pressure downstream of the thermostat controlled valve as an indication of heat demand. A low limit transducer is placed at 50 to 90 percent of the tank height to maintain adequate heated water for casual uses without excessive burner cycling. A flow transducer is integrated with a heat trap. The control uses output of the flow transducer (combined with the timing out of an interval timer) to enable an excursion from the low limit set point to the thermostat high limit.