Domestic appliance comprising a tool

Details Domestic appliance comprising a tool Domestic appliance comprising a tool

1987-04-06

1988-07-26

Tapolcai, William E.

Refrigeration

Automatic control

By congealed removable product condition

318282, 366601, 464160, A23G 912

Patent

active

047591927

ABSTRACT:
A domestic ice-cream maker comprises a refrigerated bowl-shaped container for an ice-cream mass; a rotatable stirring tool associated with such container for scraping off ice-cream freezing at a refrigerated surface of the container; and a single-phase synchronous motor for rotating the stirring tool, such motor having a maximum permissible operating temperature for making the ice-cream. A transmission path including a reduction mechanism extends between the synchronous motor and the stirring tool. Backlash is provided in the reduction mechanism as overload protection for the synchronous motor, the backlash acting in both directions of rotation of the motor and corresponding in each such direction of rotation to at least 10 revolutions of the motor, the motor, upon being blocked in either direction of rotation, reversing its direction of rotation and passing through the range of the backlash without exceeding its maximum permissible operating temperature.

REFERENCES:
patent: Re26093 (1966-10-01), Ingram
patent: 3347451 (1967-10-01), Vind
patent: 3408830 (1968-11-01), Sutaruk et al.
patent: 3926414 (1975-12-01), Tanguy
patent: 4205535 (1980-06-01), Maurer
patent: 4402194 (1983-09-01), Kuwako et al.
patent: 4696166 (1987-09-01), Bukoschek et al.

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