Apparatus for making a coffee beverage

• US 4,306,492 A
• Filed: 07/25/1979
• Issued: 12/22/1981
• Est. Priority Date: 04/07/1977
• Status: Expired due to Term

• Current Assignee: Jurgen Zimmermann
• Original Assignee: Jurgen Zimmermann
• Inventors: Zimmermann, Jurgen
• Primary Examiner(s): Wilhite, Billy J.
• Application Number:
  US06/060,385
• Time in Patent Office: 881 Days
• Field of Search: 206/0.5, 206/217, 206/218, 426/77-84, 426/86, 426/433, 99/306, 99/287, 99/323, 99/295, 99/297, 366/256, 366/267, 366/268, 366/269, 366/343
• US Class Current: 99/287
• CPC Class Codes: A47G 19/16 Tea infusers, e.g. infusing bags, egg-shaped infuses for using only once, e.g. made of paper, B65B, B65D
• CPC Class Codes: A47J 31/06 Filters or strainers for coffee or tea makers ; Holders therefor
• CPC Class Codes: A47J 31/20 having immersible, e.g. rotatable, filters

Abstract

Apparatus for enclosing a filter bag, filled with a portion of coffee provided with a cup, a bellows member formed beneath the cup and separated by a perforated wall, the coffee portion being inserted within the bellows.

Claims

1. Apparatus for the production of a coffee beverage from dry coffee powder contained in a filter bag comprising a drinking cup having an upper edge, a generally cylindrical wall and a closed bottom, and a perforated partition extending transversely within said cup to form an intermediate horizontal wall spaced above the bottom of said cup, said intermediate wall and the bottom of said cup defining a chamber adapted to contain the filter bag, said chamber being surrounded by a substantially cylindrical wall portion, said cylindrical wall portion being corrugated along circumferential fold lines to form a bellows permitting the bottom to be pumped relative to the intermediate wall, whereby on filling said cup with water, and pumping said bottom wall water is caused to flow in a current through said intermediate wall and through said filter bag.

2. Apparatus according to claim 1, including a pair of rim holder elements provided on the interior of said drinking cup above said intermediate wall, said rim holders being adapted to cooperate with a filter bag to position same within the drinking cup.

3. The apparatus according to claim 1 or 2, wherein said drinking cup is formed of material sufficiently rigid to enable formation of said corrugations and withstand pumping.

4. The apparatus according to claim 3, wherein said material is plastic.