Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1986-03-10
1987-05-19
Chambers, A. Michael
Fluid handling
Systems
Flow path with serial valves and/or closures
137463, 13750547, 137510, 251 65, 251 73, F16K 1700
Patent
active
046659455
ABSTRACT:
A pressure regulator for a fuel gas of the present invention operates to reduce the pressure of the fuel gas kept in a gas container to the predetermined pressure and then supply it to a burner through the secondary passage thereof. Further, the pressure regulator includes a shutoff valve disposed in the primary passage thereof and an actuator of which operation chamber connects to the secondary passage. In the shutoff valve, there is provided a valve body displaceable between the valve open position and the valve shutoff position and sustained in the valve open position by the attractive force of a magnet against the valve closing force by a valve closing means in the normal condition. In case the pressure in the secondary passage is increased abnormally, the actuator is driven by the increased secondary pressure so as to move the magnet away from the valve body and hence to close the primary passage by the valve body.
REFERENCES:
patent: 797664 (1905-08-01), Cottingham et al.
patent: 2692113 (1954-10-01), Larkin, Jr.
patent: 3121552 (1964-02-01), Wilson
patent: 3225753 (1965-12-01), Bintz
patent: 3228417 (1966-01-01), Schwerter
patent: 3422841 (1969-01-01), Farrer
patent: 3818928 (1974-06-01), Carsten
Chambers A. Michael
Iwatani Sangyo Kabushiki Kaisha
Kabushiki Kaisha Asahi Seisakusho
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