US 5,349,897 AGranted

Coffee brewer method and apparatus

AssigneeZuma Coffee Technologies, Inc.

InventorsBrian L. King, Paul A. King

Life of this patent

Estimating the term…

Loading patent…

Abstract

An apparatus for brewing coffee, tea or other beverages that has upper and lower chambers that move relative to each other. When the upper and lower chambers are joined, coffee and water are supplied to the upper brewing chamber which passes through a filter mounted on the top of the lower brewing chamber into the lower brewing chamber and the coffee grounds remain on the filter. A piston in the lower chamber forces air through the liquid to agitate it and sucks it through the filter into the lower chamber. The coffee flows from the lower chamber and then a single push rod separates the upper and lower chambers. A wiper blade then removes the coffee grounds from the filter while the chambers are separated after which the push rod reseals the upper and lower chambers together for the next brewing cycle.

Claims21

Dependent claims

Apparatus for brewing a beverage comprising, in combination:

an upper chamber for receiving and containing hot water and a brewing material and having an open lower end,
a lower chamber having an open upper end,
a filter mounted over the upper end of said lower chamber preventing passage of the brewing material therethrough,
means for providing relative movement between said lower chamber and said upper chamber to move said chambers between a first position wherein said filter is clamped between said lower end of said upper chamber and said upper end of said lower chamber and a second position wherein said lower end of said upper chamber is spaced from said upper end of said lower chamber,
means for removing brewing material off the top surface of said filter, and
means for moving said removing means across said filter when said chambers are in said second position to remove brewing material from said filter, a moveable support member connected to said upper chamber and wherein said means for providing relative movement between said upper and lower chambers includes a push rod with one end pivotally connected to the center of said support member and wherein said push rod is aligned with the center of said upper chamber and said support member.

3 more elements

Dependencies are inferred from the claim text.