Other

Hughes Missile Systems Company

Purex Pool Products, Inc.

Richard M Trostler

A radar homing system in a guided missile for intercepting one of a group of targets, such as aircraft flying in formation. Offset circuitry places undesired Doppler target returns outside of the IF filter bandpass frequency of the system. The system is designed to take cognizance of the highest Doppler frequency derived from the targets.

Multiple target discrimination system

Thermostatic control of heating, as for a pool or spa, involves use of a heat source including a main heat generator and a mounting body, and includes:

Reduced differential, high limit thermostat system

A heater for water beds, and a heater control system for the heater, with the control system located in the same structure envelope that houses the heater elements. The control system has temperature sensing elements packaged together with power supply circuitry and utilizes heat sinks to thermally isolate the temperature sensing elements. The control system includes circuitry to prevent the heater from overheating under any conditions, and the heater itself is a flexible pad-like structure that produces uniform heating over its surface. This integrated system heats the water in a water bed to a preselected temperature and keeps it at the selected temperature. Electrostatic shielding of circuitry components is capacitative to avoid capacitive coupling problems inherent in having electrical circuitry adjacent to a large body of water.

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Claremont, CA, United States of America

Richard M Trostler