Abstract: The present invention provides a patio heater that has the capability of heating an area in a desired direction rather than heating all areas in all directions radially from the patio heater. The disclosed patio heater has a heat source that sits upon an elongated support member that spaces the heat source vertically away from ground level to protect the user from accidentally coming too close to the heat source. The heat source is enclosed in a receptacle having one or a plurality of side walls that extend above the heat source to form a heat exhaust opening directed generally upward. The heat generated by the heat source is reflected in a desired direction by a heat reflector located above the heat exhaust opening and supportively connected to the receptacle. A directional control mechanism is provided for angling the heat reflector relative to the heat exhaust opening and, thus, reflecting the heat in the desired direction.

Abstract: A hardware and algorithm synchronizing arrangement comprising a subsystem synchronization interface circuit is disclosed for controlling the testing of multiple interconnected processors. The circuit permits the pausing of one processor to cause the other interconnected processors to pause as well. The circuit enables a synchronized resumption of the interconnected processors operations. Logic circuitry and signaling interconnections control individual and multiple simultaneous pauses and full duplex operation of a plurality of central control facilities.