The Echlin Manufacturing Company

Robert A Keller

This invention provides a differential pressure-activated control system having non-mechanical, remotely controllable, biasing means. The system comprises a differential pressure sensing means, having opposing first and second pressure sensing portions, a conduit between one portion of the sensing means and a system to be monitored and a second conduit means between a second portion of the pressure sensing means and the system to be monitored; the second conduit comprising in intermediate fluid flow pressure connection, a pressure regulator which limits the maximum pressure, in accordance with a desired predetermined pressure, conducted to the second portion of the pressure sensing means. Such pressure regulator can be remote from the system and from the pressure sensing means and is connected thereto only by non-moving, pressure-connecting means.

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Huntington Beach, CA, United States of America

Robert A Keller