G - Physics – 05 – D
Patent
G - Physics
05
D
341/30
G05D 23/19 (2006.01) F23N 5/22 (2006.01)
Patent
CA 1100601
ABSTRACT OF THE DISCLOSURE A fuel burner sequencing means is disclosed which utilizes a bistable or alternate action switching means for safety checking. The bistable switching means is specifically disclosed as a bistable relay that operates at the start of the cycle, and at the end of the cycle to check the operability of the safety checking means. This same bistable relay means is used as a lockout means in the event of the failure of flame when a flame should exist in the burner, or when a flame is indicated and none should be present.
303026
Honeywell Inc.
Smart & Biggar
LandOfFree
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