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US 5,957,035 AGranted
Swirling oscillation coffee maker
OwnerWalter M. Richterinventor
Life of this patent
Estimating the term…
Abstract
A drip coffee maker rotates the filter basket about a vertical axis, to-and-fro through an angle of about 45 degrees with a frequency of about one second. The coffee may be held in the basket until a predetermined level of hot water has been added to the basket. The basket may be driven by gears acting through an electric motor.
Claims10
A coffee maker of the type having a basket, for holding hot water along with a coffee-brewing substance, and for drip-brewing coffee, the improvement comprising:
- means for rotating the basket about an axis, alternately in a first direction of rotation and then in a second direction of rotation, such that a mixture of the hot water and the coffee-brewing substance oscillates to and fro in a swirling motion,
- whereby coffee strength is increased and adhesion of the coffee-brewing substance to side walls of the basket is inhibited.
A process of brewing coffee from hot water and a coffee-brewing substance, comprising:
- providing a basket;
- placing the hot water into the basket along with a coffee-brewing substance;
- rotating the basket about an axis, alternatingly in a first direction of rotation and a second direction of rotation, such that a mixture of the hot water and the coffee-brewing substance oscillates to and fro in a swirling motion,
- whereby coffee strength is increased and adhesion of the coffee-brewing substance to side walls of the basket is decreased;
- and
- removing the coffee from the basket.
3 more elements
Dependencies are inferred from the claim text.