Abstract: A flavored liquid mixture to be converted into ice cream is prepared at ambient temperature and is then frozen for an indefinite period. When needed, the frozen mixture is placed in a vessel for vigorous agitation, again at ambient temperature, by a stirrer with two or more blades disposed at different levels and angularly offset from one another. The top and bottom blades are inclined toward each other in order to roll the mass over for thorough homogenization; in an initial stage, designed primarily for the breakup of ice crystals, the stirrer may be operated at a higher speed or in a pulsating mode.

Abstract: A household appliance for squeezing, comminuting or otherwise treating fruits and vegetables comprises a motor housing with a base having a lateral extensions from which a drive shaft extends upward. A cylindrical treatment vessel fits onto that extension with a hub which surrounds the drive shaft and accommodates a tubular stub shaft of an implement to be driven, the vessel having a cover which is attachable thereto through a bayonet coupling and carries a peripheral detent which must enter a slot of the motor housing and be engaged by a retractable latch to trip a microswitch enabling the motor to operate.

Abstract: A device for making ice cream, particularly designed for household use, comprises a motor inside a housing driving two vertical shafts projecting from the bottom of two recesses within the housing. One recess, shallower and smaller than the other, forms a seat for a blender whose agitator is driven by the corresponding shaft. The other, deeper and wider recess has a mount adapted to support a freezing vessel having a hub which fits around a tubular boss surrounding the second shaft. The latter shaft carries a stirrer with one or more paddles. In one embodiment, in which the freezing vessel resting on the mount is an outer cup supporting a smaller inner cup to facilitate the simultaneous preparation of two loads of ice cream of different flavors, at least one paddle of the stirrer reaches around the rim of the inner cup to enter the outer cup.