Ohmiq, Inc.

Lumiq Inc.

Kevin James Hammer

Michael J Wieckowski

Gregory S Lyon

Jeremiah M Callahan

Eric J Doesburg

Weston Scott Catron

Andrew Casperson

Julie Klions

Jesse Flynn

A heater for heating a conductive liquid includes a two-dimensional array of rod-like electrodes () extending parallel to one another, an electrical power supply having a plurality of poles, and power switches to connect different ones of the electrodes to different poles so that current flows between the poles through the liquid. The array desirably includes outer electrodes defining the boundary () of the array and inner electrodes disposed within this boundary. The array may have regular or irregular spacings between the electrodes. The array can provide numerous different connection schemes to vary the electrical resistance between the poles and thus vary the heating rate. The array can be arranged to provide substantially equal currents through three poles of a three-phase power supply.

Devices for ohmically heating a fluid

A display includes a graphic layer having indicia. A opaque mask layer beneath the graphic layer has light-transmissive areas in registration with selected indicia on the graphic layer. A circuit panel bears light emitters. A spacer layer having openings therein is disposed between the mask layer and the circuit panel, and each light emitter is disposed in an opening of the spacer layer, so that light from each emitter can reach a light-transmissive area of the mask layer overlying the opening housing that light emitter. A control circuit selectively illuminates the light emitters so as to selectively illuminate indicia on the graphic layer through the light-transmissive areas. The light emitters need not be precisely aligned with the indicia on the graphic layer, such that numerous different displays can be made using identical circuit panels.

Illuminated display with printed graphic layer

Growing community of inventors

Charleston, SC, United States of America

Kevin James Hammer