Itt Manufacturing Enterprises, Inc.

Ned Santos

David L Phillips

William B McDonough

Rufino Naval, Jr

Method and apparatus are provided for warning a user or operator about a malfunction in a pump and/or engine of a marine vessel or another suitable device or equipment, featuring steps of: comparing a sensed pressure differential at a sensed RPM when the pump/engine is running to a learned database having a pressure differential versus RPM curve; and providing an indication to the operator when there is a change in the relationship that exceeds a predetermined relationship. The apparatus may include an active intelligence unit or module for making the comparison and providing the indication according to the invention.

Early warning and protection for heat exchange systems

An active sensing and switching device for use in controlling current to a load, comprising a controller means (U) for disconnecting the load from a power source by providing a switch-open control signal based on a signal indicating a sensed value of electrical current to the load, characterized in that the controller means (U) determines a nominal value for the electrical current to the load based on monitoring the signal indicating the sensed value of electrical current to the load. A load control system is also provided, including a single ASSD adapted to receive signals indicating sensed values of electrical current to a plurality of respective loads, and further comprising a plurality of load control modules adapted so as to be disposed in proximity to respective loads or a main power line, wherein the load control modules provide respective signals indicating sensed values of electrical currents to the respective loads.

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Lake Forest, CA, United States of America

Ned Santos