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Brewing apparatus

  • US 5,259,296 A
  • Filed: 03/02/1993
  • Issued: 11/09/1993
  • Est. Priority Date: 03/02/1992
  • Status: Expired due to Term
First Claim
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1. Brewing apparatus for preparing a beverage, especially for a coffee machine, of the type having a brewing piston, a brewing cylinder containing an ejection piston, lateral guiding and holding plates including grooves for guiding said brewing cylinder and for mounting individual components of said brewing apparatus, supply means for supplying scalding water to said brewing cylinder, and discharge means for the beverage, wherein the improvement comprises:

  • a guide means disposed concentrically with said brewing piston for axial guidance thereof,first drive means disposed concentrically with said guide means for bringing said brewing piston into a predetermined brewing position, variable with respect to said brewing cylinder,control elements connected to said first drive means for controlling a swivel movement of said brewing cylinder from a filling position into said brewing position, anda driving mechanism movable with respect to said brewing cylinder for moving said ejection piston within said brewing cylinder in such a way that said ejection piston travels a step-up geared path with respect to said driving mechanism.

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