Spark ignition switch and valve assembly for gas burners including external detent assembly
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United States of America Patent
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-
Jun 11, 1996
Grant Date -
N/A
app pub date -
Nov 30, 1994
filing date -
Nov 30, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved spark ignition switch and gas valve assembly is provided. A gas valve includes a manually rotatable stem for controlling gas flow rates through the valve. A spark ignition switch includes a first stationary electrical contact; a second electrical contact including an arm for moving the second electrical contact into and out of engagement with the first stationary electrical contact; and a rotor rotatable by the valve stem. The rotor includes a cam moving the arm for moving the electrical contacts into engagement for a predetermined range of rotation of the valve stem and for moving the electrical contacts out of engagement with rotation of the valve stem past the predetermined range. A detent mechanism is operatively arranged with the rotor for providing tactile feedback to a user. The detent mechanism is arranged for engagement at a predefined rotational angle within the predetermined range of rotation of the valve stem.
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