Solid material comminution or disintegration – Apparatus – With means to protect operator from injury
Patent
1986-06-11
1987-11-17
Rosenbaum, Mark
Solid material comminution or disintegration
Apparatus
With means to protect operator from injury
2412821, B02C 2500
Patent
active
047068965
ABSTRACT:
A food processor has a base unit, a removable bowl attached to the base unit and a removable lid on the bowl. The base unit houses an electric motor for driving processing tools in the bowl. The lid and bowl have interengaging formations which attach the lid to the bowl when the lid is on the bowl in a fixed angular relationship thereto. A switch mechanism for energizing the motor comprises two electrical switches in the base unit, a switch actuator slidable in an actuator housing on the bowl against the urging force of a spring and a switch button slidable in a switch button housing on the lid of the bowl also against the urging force of another spring. When the lid is attached to the bowl the switch can be operated by manually depressing the switch button which in turn depresses the switch actuator. The switch button can be held down manually to operate the processor in a short burst. The switch button also has a selectively operable locking member for releasably locking the switch button in its depressed position for longer operation of the processor. When depressed the switch button prevents removal of the lid from the bowl and moreover engages with the actuator in a manner such that should the actuator become jammed in a depressed position the switch button will likewise remain in a depressed position.
REFERENCES:
patent: 4614306 (1986-09-01), Doggett
Chiaphua Industries Limited
Rosenbaum Mark
VanOphem Remy J.
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