Piezo Electric Products, Inc.

W Porter Stone

Henry H Kolm

Eric A Kolm

Robert E Carter

A visco-elastic actuator mechanism including a support section and an actuator section. A visco-elastic adhesive is mounted to one of the sections and is engageable by the other of the sections to hold the actuator in a first state. A spring urges apart one of the sections relative to the other until the actuator is abruptly switched to a second state.

Visco-elastic delayed actuator

A calibration system for a temperature sensing probe in an electronic thermometer, including: a reference temperature element having a characteristic that varies as a function of temperature; a reference temperature sensing circuit, responsive to the reference element, for providing a reference signal representative of the temperature sensed by the reference element; a probe temperature sensing circuit responsive to the probe for providing a probe signal representative of the temperature sensed by the probe; means for releasably interconnecting the probe and the probe temperature sensing circuit; and comparator means for comparing the probe signal representative of the temperature sensed by the probe and the reference signal representative of the temperature sensed by the reference element; the probe temperature sensing circuit being responsive to the comparator means for adjusting the probe signal representative of the temperature sensed by the probe to match the reference signal representative of the temperature sensed by the reference element.

Self-calibrating thermometer

A piezoelectric circuit breaker including: a line terminal and a load terminal; contact means interconnected between the terminals; means responsive to an increase in load current between the terminals for generating a voltage indicative of an overload current; and piezoelectric bender means responsive to the voltage for deflecting and opening the contact means.

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Walpole, NH, United States of America

W Porter Stone