Abstract: An electrostatic oven or cooking apparatus having a heating structure defining a cavity and conventional thermostatically controlled heating element into which articles are placed is provided with an arrangement to generate an electrical field in a direction substantially perpendicular to the plane of the cooking articles thereby improving the overall efficiency of the cooking process. The improved efficiency of the cooking process results in a reduction in the cooking time relative to conventional ovens. The electrical field generating apparatus in one arrangement includes an electrical field grid element maintained at a reference potential and apparatus for supporting the cooking articles upon being positioned within the heating structure cavity and maintaining the cooking articles at a DC potential with respect to the reference potential. The electrical field grid element and the cooking article support apparatus are spaced apart and adjustable relative to each other.

Abstract: A variable delay windshield wiper control system is provided in conjunction with a conventional windshield wiper system of an automobile to control the operation wiper drive source and wiper drive mechanism at predetermined variable intervals. The variable delay wiper control system operates independently of the conventional wiper switch and is effective to provide an adjustable delay interval between successive windshield wiper sweeps or reciprocative paths as is desirable during light rain or precipitation conditions.The wiper control system includes a timing circuit which generates variable duration intervals and directly effects operation of the drive source at the end of each of the intervals, and a delay control adjusted by the operator. A control switch is also provided for disabling the variable delay wiper control system and for effecting operation of the timing circuit.