Timing apparatus for a pizza oven switch

Details Timing apparatus for a pizza oven switch Timing apparatus for a pizza oven switch

1993-12-27

1995-11-07

Scott, J. R.

Electricity: circuit makers and breakers

Retarded

Chain or flexible drive

200 38FA, 200 39R, 307141, H01H 4300

Patent

active

054649536

ABSTRACT:
A timing apparatus including a timer, a solenoid, a toggle switch, and an adapter plate for mounting to the valve control knob of a pizza oven, the adapter plate being provided with a detent at a given point on the periphery thereof. The knob is spring biased in a rotational direction toward the "on" position on the knob. An electrical timer is provided to energize a solenoid at a preset time duration, with the solenoid rod being physically coupled to a pivotable actuating arm, the free end of which is positioned for engagement with the detent of the knob with the knob in the "off" position, the plate being retained at that position against the force of the coil spring. A toggle switch is in electrical circuit relation with the timer, with the toggle thereof physically positioned in operative relation a member projecting from the actuating arm, such that actuation of the toggle from a first position to the second under force of the projection deenergizes the circuit between the timer and the solenoid.

REFERENCES:
patent: 2937247 (1960-05-01), Laviana et al.
patent: 3818156 (1974-06-01), Augustyniak
patent: 3823329 (1974-07-01), Crook et al.
patent: 4149654 (1979-04-01), Nelson et al.
patent: 4456820 (1984-06-01), Krasznai et al.
patent: 4464548 (1984-08-01), Burmeister
patent: 4853501 (1989-08-01), Sung et al.

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