Safety and regulation valve unit for a gas installation particul

Details Safety and regulation valve unit for a gas installation particul Safety and regulation valve unit for a gas installation particul

1998-04-28

1999-11-09

Michalsky, Gerald A.

Fluid handling

Combustion failure responsive fuel safety cut-off for burners

Thermo-electric

137866, 137870, 25112911, F16K 1110

Patent

active

059794844

ABSTRACT:
A safety and regulation valve unit for a gas installation, particularly a heating installation, comprises a duct through which the fuel can flow between an inlet and at least one outlet. An on-off fuel-valve is interposed in the duct between the inlet and the at least one outlet, and there is a movable device for controlling the valve as well as an actuator acting on the movable device in order to move it towards a first operative position in which it cooperates with the on-off valve in order to put the inlet into communication with the outlet. The actuator comprises a reversible motor with a rotor connected to a male-and-female screw coupling acting on the movable device to translate it towards the first operative position and to control the on-off valve.

REFERENCES:
patent: 2901034 (1959-08-01), Puttfarcken et al.
patent: 4437388 (1984-03-01), Budzich
patent: 4526342 (1985-07-01), Wakefield
patent: 5785511 (1998-07-01), Shah

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