Abstract: A heating source placed upon a transportable vehicle is electrically heated in an oven and transported to the room via rail. Heat from the payload is dissipated into the room and, after the ambient temperature lowers back down, the vehicle and payload are returned to the oven for subsequent re-heating.

Abstract: The present invention is directed to a system and methods for heating a room such as a spa or a sauna. In the present invention, a heating source placed upon a transportable vehicle is electrically heated in an oven and transported to the room via rail. Heat from the payload is dissipated into the room and, after the ambient temperature lowers back down, the vehicle and payload are returned to the over for subsequent re-heating.

Abstract: This invention relates to methods of self-calibration for computer display cursor positioning devices imbedded within a computer keyboard key (sometimes referred to herein as a "key-type mouse") or other pointing device. A plurality of Force Sensitive Resistor grids ("FSRs") or other pressure sensitive sensors are used to detect relative pressure applied in various directions to a predetermined key of a computer keyboard. An RC circuit is used to indirectly read the values of the FSRs. A predetermined delay period is associated with each sensor followed by a measurement period. The resistance of the FSR is related to the measurement period taken to reach a given voltage value after the predetermined delay period. A positive or negative offset to the predetermined delay period adjusts the time necessary for the RC circuit to reach a predetermined bias voltage value.