Control system for gas fired heating apparatus using double-thro

Details Control system for gas fired heating apparatus using double-thro Control system for gas fired heating apparatus using double-thro

1994-06-06

1995-04-04

Dority, Carroll B.

Combustion

Timer, programmer, retarder or condition responsive control

Sensor of electrical condition or temperature of electrical...

431 67, F23N 500

Patent

active

054031826

ABSTRACT:
A control system for a gas fired heating apparatus which apparatus includes a burner, two gas valves and a hot surface igniter, and which control system includes a single-pole, double-throw radiant heat sensing switch having normally-closed contacts which open and normally-open contacts which close in response to the igniter being at a temperature above gas ignition temperature. The normally-closed contacts are connected in series with the electrical winding of one of the gas valves to enable initial opening thereof; circuit means is provided to maintain the valve open when the normally-closed contacts are opened. The normally-open contacts are connected in series with the electrical winding of the other gas valve to enable opening thereof.

REFERENCES:
patent: 5022460 (1991-06-01), Brown
patent: 5169301 (1992-12-01), Donnelly et al.

Affiliated with

Also associated with

Rating

Control system for gas fired heating apparatus using double-thro does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control system for gas fired heating apparatus using double-thro, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for gas fired heating apparatus using double-thro will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2377270