Rotary gas control with a thermoelectric ignition safety device and piezoelectric igniter专利检索-引燃器燃烧器燃烧器和锅炉专利检索查询-专利查询网

Rotary gas control with a thermoelectric ignition safety device and piezoelectric igniter

阅读：83发布：2022-11-16

专利汇可以提供Rotary gas control with a thermoelectric ignition safety device and piezoelectric igniter专利检索，专利查询，专利分析的服务。并且A rotary gas control apparatus has a rotary handle adapted for rotation from a gas-off position via an ignition stand-by position into a gas-on position. By the motion of the rotary handle, a piezo-electric ignition device with an impact mechanism is energized. In the ignition stand-by position, the rotary handle may be depressed, whereby a safety valve is opened and gas is allowed to flow to a pilot burner. In the depressed position, the handle is rotatable from the ignition stand-by position through a limited angle to an ingition position, whereby the ignition device is triggered and the pilot burner is lit thereby. A magnet thermoelectrically energized by the pilot burner holds the safety valve open. The handle is returned to the ignition stand-by position, moved outward and can now be rotated to the gas-on position, in which a main gas valve opens to permit the flow of gas to a main burner.，下面是Rotary gas control with a thermoelectric ignition safety device and piezoelectric igniter专利的具体信息内容。

权利要求

1. In a rotary gas control having a thermoelectric safety device comprising valve means including a safety valve, rotary handle meanS connected to said valve means and rotatable from a gas-off position first to an ignition stand-by position and then into a gas-on position, a piezoelectric ignition device, an impact mechanism for said device means connecting the handle means and the impact mechanism for actuating the mechanism to impact on the device upon movement of the handle, the improvement comprising: said handle means being movable axially to a depressed position only when in the ignition stand-by position to there-upon open said safety valve and release an ignition gas flow, and while in said depressed position may be farther rotated to a limited extent sufficient for triggering said impact mechanism.

2. In a gas control apparatus comprising a housing member on which is mounted a piezoelectric ignition element, a pilot valve, a main burner valve, a safety valve between a gas inlet and the pilot and main burner valves, valve actuating means operatively connecting the valves and including a movable handle for maintaining all of said valves closed at a first rotational position, for opening the pilot valve at a second rotational position in a given rotational direction from said first position, for opening said safety valve after axial movement of the handle at said second rotational position to an axially displaced position, for latching said safety valve open folowing a predetermined period of burning of the gas flowing through the pilot valve whereupon said axial movement may be reversed, and for opening the main valve upon continued rotation of the handle in said given direction to a third position, the improvement comprising: said handle or said actuating means being rotatable to a fourth rotational position when in said axially displaced position, and operating means for said element and including hammer means positioned for striking said element when the handle is moved to the fourth position from the second position.

3. In a gas control apparatus as set forth in claim 2, wherein said hammer means includes a two-armed lever with a hammer on one arm thereof, said lever having a slot intermediate said arms, a pin extending through said slot and pivotally supporting said lever, a spring connected to said lever and urging the hammer against the element and said lever to a position at which said pin is at one end of said slot, said actuating means having a cam to contact said other arm and actuate said lever.

4. In a gas control apparatus as set forth in claim 2, wherein said handle is affixed to a collar member rotatable with the handle, wherein said members have portions thereof in juxtaposition as said handle is rotated with respect to said housing member, said portion of one of said members having a nose and said portion of the other member having a slot which is intermediate the portion thereof, is of a size to receive said nose and is radially aligned with the nose when said handle is in said second position so that said axial movement can be made and when in the displaced position and rotated to the fourth position said nose will pass under a part of the other member''s portion at a side of the slot to maintain handle axially displaced, said valve actuating means including spring means resiliently urging said handle in an axial direction away from said axially displaced position, said portions having stop means to prevent rotation of said handle member beyond said fourth position when axially displaced as aforesaid.

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Rotary gas control with a thermoelectric ignition safety device and piezoelectric igniter

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