Gas shutoff apparatus

Details Gas shutoff apparatus Gas shutoff apparatus

1989-03-16

1989-11-21

Kratz, Peter

Gas: heating and illuminating

Distribution

Safety devices

137460, F23K 500, G05D 700

Patent

active

048819484

ABSTRACT:
A gas flow rate is measured and therefrom "consumption state" defined by combination of maximum flow rate, increase of total amount and a consumption time of the gas is detected, and then, the consumption state is compared with a "reference consumption condition" representing a predetermined consumption state; and when the "consumption state" exceeds the "reference consumption condition", a gas control means interrupt supply of the gas; and thereafter, after restoration of the gas control means to gas supply state, the actual gas consumption state is measured for a predetermined time counted by timer when the gas flow rate exceeds a predetermined level.

REFERENCES:
patent: 2059411 (1936-11-01), Stubblefield et al.
patent: 4420139 (1983-12-01), Belov

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