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:
Jul. 28, 1987
Filed:
Feb. 21, 1986
Applicant:
Inventor:
Davis L Bigham, Franklin, TN (US);
Assignee:
Heil-Quaker Corporation, LaVergne, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24H / ; F04B / ;
U.S. Cl.
CPC ...
1261 / ; 126 / ; 1261 / ; 237 55 ; 137132 ; 137192 ; 4205 ;
Abstract
A safety device for monitoring the condition of the condensate outlet conduit in a high efficiency furnace is provided which comprises a float member positioned in a condensate trap arranged to float on the condensate and to rise in response to a rising level of condensate in the trap to block the gas vent inlet. A pressure sensing device is utilized to sense the back pressure in the vent and when the float blocks the vent inlet, the back pressure increased and the sensing device will then operate to terminate operation of the furnace.