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Mill and beverage preparation apparatus including the same

  • US 10,239,062 B2
  • Filed: 08/04/2014
  • Issued: 03/26/2019
  • Est. Priority Date: 08/05/2013
  • Status: Active Grant
First Claim
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1. A mill, comprising:

  • a first mill provided with a first grinding surface; and

    a second mill provided with a second grinding surface,the first grinding surface including a first groove in a curved shape which extends from a side of a center of rotation toward an outer circumference,the second grinding surface including a second groove in a curved shape which extend from the side of the center of rotation toward the outer circumference, andthe first groove and the second groove not being completely superimposed on each other and an angle of intersection β

    between the first groove and the second groove being 10°



    β



    50°

    while the first grinding surface and the second grinding surface are superimposed on each other.

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