Abstract: An apparatus for brewing coffee or the like with microwave energy comprising a receptacle for receiving a brewed beverage, and a generally funnel-shaped reservoir having an open upper end, a closed lower end and an aperture near the closed lower end. A flange extends outwardly from the reservoir and is operable to position the apparatus over the receptacle wherein the aperture is disposed over the receptacle. A valve is provided to control flow of liquid from the reservoir and is operable to allow flow upon the existence of a predetermined condition in the reservoir.
Abstract: A touch tablet is provided containing two sheets of insulating material each of which contains a plurality of spaced apart conductive lines. A resistive strip on each sheet contacts and connects electrically one end of each of the plurality of conductive lines on that sheet. Each resistive strip functions as a potentiometer. Mounted between the two sheets and spaced apart therefrom is a conductive middle sheet. The first and second sheets are mounted such that the first and second sets of a plurality of conductive lines on these sheets are orthogonal to each other. A user presses on one of the two sheets to bring all three sheets into contact. The impedence of each potentiometer is a function of the contact point. The potentiometer is used as part of an RC circuit to provide a variable time constant representative of the coordinate of the contact point.
March 15, 1983
Date of Patent:
February 11, 1986
Koala Technologies Corporation
David D. Thornburg, George M. White, III