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Apparatus for extracting a substance contained in a sachet

  • US 5,826,492 A
  • Filed: 02/29/1996
  • Issued: 10/27/1998
  • Est. Priority Date: 07/20/1992
  • Status: Expired due to Term
First Claim
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1. An apparatus for extracting, with water under pressure, a comestible substance contained in a sachet package comprising:

  • a first member and a second member whereinthe first member comprises a base, a wall surface and a wall rim wherein the wall surface extends laterally from the base to the rim to define a first member cavity and wherein the base contains holes therethrough for flow of an extract from the cavity through the base and comprises a surface and raised portions wherein the raised portions extend from the base surface into the first member cavity for tearing a sachet sheet positioned adjacent and deformed under pressure against the raised portions;

    the second member comprises a wall surface and an edge wherein the wall surface defines a second member cavity and extends to the edge; and

    the first member and second member are configured so that upon bringing the first member rim and the second member edge together, the first and second member cavities form a chamber confined by the wall surfaces and base and each of the cavities define substantially one-half of the chamber for containing sheets of a sachet which extend to a sachet edge and contain a comestible substance for preparation of a beverage and so that the first member rim and the second member edge are configured to grip the sachet edge and to provide fluid-tightness and so that upon bringing the rim and edge together to grip the sachet edge and to provide fluid-tightness, the rim and edge stretch the sachet;

    a chassis and chassis mounting affixed with the first member and second member so that the first and second members are mounted to the chassis about an axis so that movement of one member relative to the other is through a plane transverse to the axis and so that upon movement about the axis one member to the other, the first member rim and the second member edge are brought together to form the chamber, grip the sachet edge, provide fluid-tightness and stretch the sachet;

    means which extend from the second member into the second member cavity for, upon the bringing of the first member rim and second member edge together, perforating a sheet of a sachet which contains a comestible substance for preparation of a beverage to obtain a perforated sachet and for introducing water for extracting the substance contained in the perforated sachet; and

    fastening means integral with each of the first and second members and comprising a lever which extends from one of the first and second members to the other member for, upon the first and second members being together, rigidly fastening the first and second members together to form the chamber, grip the sachet edge, provide fluid-tightness and stretch the sachet.

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