Gas shut-off device
OwnerJeffrey R. Koppinginventor
Life of this patent
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Abstract
A gas shut-off device is provided to automatically cut off gas supply to a gas appliance, such as an outdoor gas fueled barbecue grill, at the expiration of a predetermined time period thereby saving gas and preventing hazards usually associated with a grill that has been left on after use. The gas shut-off device of the present invention is tamper resistant thereby-reducing the risk of a child inadvertently directing gas to an unlit appliance.
Claims8
A tamper resistant, safety promoting, and gas saving gas shut-off device to selectively shut off a flow of gas, such as liquid petroleum gas or natural gas, to a gas fueled device such as a BBQ grill in response to a user selected time period, comprising:
- a housing having a gas passage with a first opposite end defining a gas inlet port for inputting gas from a gas supply and a second opposite end defining a gas outlet port;
- a lever operated gas shut-off valve having an open position and a closed position and located between the gas inlet and gas outlet;
- a lever operably connected to the lever controlled gas shut-off valve, the lever having a lever-up and a lever-down position for controlling the open and closing of the lever operated gas shut-off valve, wherein the lever has a first end, a middle section and a second opposite end, and wherein the first end of the lever is operably connected to the lever controlled gas shut-off valve;
- a timer-lever control mechanism operably connected to the lever, wherein the timer-lever control mechanism is adapted to allow a user to input a predetermined time interval, wherein the timer-lever control mechanism is operably connected to the second end of the lever, and wherein the timer-lever control mechanism is adapted to control the up and down status of the lever;
- and
- a button operably connected to the middle section of the lever, wherein the button has a default position and in response to a force can be moved to a non-default position;
- wherein continuous gas flow along the passage is possible if a predetermined time interval is entered into the timer-lever control mechanism while the button is in the non-default position thereby providing the tamper resistant, safety promoting, and gas saving gas shut-off device.
A tamper resistant, safety promoting, and gas saving gas shut-off device to selectively shut off a flow of gas, such as liquid petroleum gas or natural gas, to a gas fueled device such as a BBQ grill in response to a user selected time period, comprising:
- a housing having a gas passage with a first opposite end defining a gas inlet port for inputting gas from a gas supply and a second opposite end defining a gas outlet port;
- a lever operated gas shut-off valve having an open position and a closed position and located between the gas inlet and gas outlet;
- a lever operably connected to the lever controlled gas shut-off valve, the lever having a lever-up and a lever-down position for controlling the open and closing of the lever operated gas shut-off valve, wherein the lever has a first end and a second opposite end, and wherein the first end of the lever is operably connected to the lever controlled gas shut-off valve;
- a timer-lever control mechanism operably connected to the lever, said timer-lever control mechanism includes a timer face, a timer knob, an axle, a cup, and a timer spring mechanism, wherein the timer-lever control mechanism is adapted to allow a user to input a predetermined time interval, wherein the timer-lever control mechanism is operably connected to the second end of the lever, and wherein the timer-lever control mechanism is adapted to control the up and down status of the lever;
- and
- a button operably connected to the lever, wherein the button has a default position and in response to a force can be moved to a non-default position;
- wherein continuous gas flow along the passage is possible if a predetermined time interval is entered into the timer-lever control mechanism while the button is in the non-default position thereby providing the tamper resistant, safety promoting, and gas saving gas shut-off device.
Dependencies are inferred from the claim text.