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Apparatus for comminuting and mixing of foodstuffs

  • US 3,957,215 A
  • Filed: 09/09/1974
  • Issued: 05/18/1976
  • Est. Priority Date: 07/05/1974
  • Status: Expired due to Term
First Claim
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1. In an apparatus for comminuting and mixing of foodstuffs, a combination comprising a stationary bowl having a bottom wall and an upstanding circumferential wall;

  • a motor mounted beneath said bowl and having an upright output shaft which extends through said bottom wall and projects upwardly within said bowl, said output shaft having an upper end portion;

    a first tubular member freely surrounding said output shaft within said bowl and having a first upper open end at a level below said upper end portion, and a lower end which is sealingly connected with said bottom wall;

    a second tubular member freely surrounding said first tubular member out of contact therewith and having a second upper end connected with said upper end portion of said shaft for joint rotation therewith, and a second open lower end at a level below said first upper open end; and

    transversely projecting tool portions on said second tubular member, said first and second tubular members having an outer and an inner circumferential surface, respectively, which define with one another an annular gap, at least one of said surfaces being formed with spiral converging grooves configurated for converging any material entering said gap in direction towards said bottom wall so that said material cannot rise upwardly in said gap.

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