Electric control apparatus for icecream-making machine

Details Electric control apparatus for icecream-making machine Electric control apparatus for icecream-making machine

1988-07-01

1989-06-13

Jenkins, Robert W.

Agitating

With heating or cooling

Fluid-filled jacket

62342, 366144, 366601, B01F 1506

Patent

active

048387029

ABSTRACT:
An electric control apparatus for an icecream-making machine wherein a stirring paddle is settled in an icecream-forming container in conditions for thermal exchange with an evaporator of a refrigerating system and is driven by an electric motor to whip icecream ingredients stored in the container. The electric control apparatus is arranged to detect the rotational speed of the paddle for producing a pulse signal at a period inversely proportional to the detected rotational speed, to produce an output signal when 1
of the period of the pulse signal is more than a predetermined period of time and to cease production of the output signal when 1
of the period of the pulse signal becomes less than the predetermined period of time, and to permit supply of an electric power to the motor when production of the output signal is ceased and to cut off the supply of the electric power to the motor in response to the output signal.

REFERENCES:
patent: 4142378 (1979-03-01), Bright
patent: 4583863 (1986-04-01), Pandolfi
patent: 4655605 (1987-04-01), Cipeletti
patent: 4664529 (1987-05-01), Cavalli
patent: 4681458 (1987-07-01), Cavalli

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