Reverse flow prevention device for combustion apparatus

Details Reverse flow prevention device for combustion apparatus Reverse flow prevention device for combustion apparatus

1989-12-01

1990-12-18

Dority, Carroll B.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

200 83N, 126307A, 431 16, 431 19, H01H 3540

Patent

active

049788213

ABSTRACT:
A reverse flow prevention device for combustion apparatuses control operated by electrical power, and which is provided with a combustion gas discharge tube for discharging the combustion process by-product. The reverse flow device comprising a reverse flow gas collecting tube installed within the combustion gas discharge tube for collecting reverse flow gas. The reverse flow device also comprises a detection means, with a function of detecting a reverse flow gas and turning OFF the combustion apparatus when the pressure of the reverse flow gas acting on the detection means is above a certain level.

REFERENCES:
patent: 1231561 (1917-07-01), Briggs
patent: 2069222 (1937-02-01), Cremer
patent: 3042769 (1962-07-01), Camnpbell
patent: 4613297 (1986-09-01), Zahias et al.

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