Spark ignition switch and valve assembly for gas burners includi

Details Spark ignition switch and valve assembly for gas burners includi Spark ignition switch and valve assembly for gas burners includi

1994-11-30

1996-06-11

Scott, J. R.

Electricity: circuit makers and breakers

Special application

Actuated concurrently with operation or use of art device

431256, H01H 906

Patent

active

055257712

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.

REFERENCES:
patent: 3122616 (1964-02-01), Rice et al.
patent: 3502835 (1970-03-01), Batcheller
patent: 3912886 (1975-10-01), Allen et al.
patent: 4019855 (1977-04-01), Camillo
patent: 4082925 (1978-04-01), Hufford
patent: 4249047 (1981-02-01), Huff et al.
patent: 4626196 (1986-12-01), Stohrer, Jr.
patent: 4810188 (1989-03-01), Kwiatek
patent: 4846671 (1989-07-01), Kwiatek

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