초록 ▼

In order to whip liquid cream even in reduced quantities, without any effort and risk, the apparatus according to the invention comprises a piston (7) provided in its front part (7b) with holes (17) through which a mixture of cream and air is pumped by jerky motions which whip the cream progressivel

In order to whip liquid cream even in reduced quantities, without any effort and risk, the apparatus according to the invention comprises a piston (7) provided in its front part (7b) with holes (17) through which a mixture of cream and air is pumped by jerky motions which whip the cream progressively as it moves towards a nozzle (16) dispensing the whipped cream. The rear part (7a) of the piston (7) operates with an excentric (4) actuated by a electric motor (2) and exerts oscillations along its longitudinal axis, thus modifying constantly the empty space in a tube (8) surrounding the piston (7). This modification of volume creates a sucking action on the liquid cream to which air is mixed and, at the same time, pumps said mixture by jerky motions towards the nozzle (16) through the holes (17).

대표청구항 ▼

Household apparatus for whipping cream, comprising a base (1) and a system of passages (12) and cutouts (17), through which a mixture of cream and air is pumped, said cutouts (17) being formed in an external face of a piston (7) mounted for oscillation along a longitudinal axis thereof and being sli

Household apparatus for whipping cream, comprising a base (1) and a system of passages (12) and cutouts (17), through which a mixture of cream and air is pumped, said cutouts (17) being formed in an external face of a piston (7) mounted for oscillation along a longitudinal axis thereof and being slidably mounted within a tube (8) between a cream and air inlet and an outlet, said cutouts being separated from one another by lands of said piston which slidably engage said tube, said lands having short passages fluidly connecting adjacent cutouts such that within the tube (8), oscillations of said piston cause a drawing-in action from said inlet followed by a compression action toward said outlet, whereby a mixture of cream and air may be drawn through said inlet and pumped through the cutouts (17) and short passages, in order to progressively whip the cream in the direction of a nozzle (16) at said outlet for delivery of the whipped cream.