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US 11,686,405 B2Granted
Gas valve with emergency shutoff and mechanical timer
OwnerChristopher Flick, Jih Ching Laiinventors
Life of this patent
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Abstract
A mechanical valve assembly for the control of a gas flow to a gas appliance. The mechanical valve assembly includes at least one input knob movably connected to a housing, a shaft assembly connected to at least one input knob, and a manually-operated valve located inside the housing and in between the inlet port and the outlet port. The manually-operated valve is mechanically connected to the shaft assembly, and the manually-operated valve is configured for opening and closing a gas flow between the inlet port and the outlet port.
Claims5
A method of controlling a gas flow to a gas appliance, the method comprising:
- providing a mechanical valve assembly for the gas appliance, the mechanical valve assembly including a housing, a gas inlet port associated with the housing, a gas outlet port associated with the housing, a timer-controlled valve operable to open and close the gas flow between the inlet port and outlet port, and a manually-operated emergency shut-off valve positioned between the inlet port and the outlet port, ahead of the timer-controlled valve relative to a direction of the gas flow through the mechanical valve assembly, and the timer-controlled valve and the emergency shut-off valve include a common shaft assembly that allows the gas flow when not seated and stops the gas flow when seated;
- opening the gas flow with the timer-controlled valve;
- and
- interrupting the gas flow with the emergency shut-off valve.
1 more element
Dependencies are inferred from the claim text.