Personnel locator

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United States of America Patent

PATENT NO 4225953
SERIAL NO

05947112

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A personnel locator and display system for indicating on a status board the room numbers where designated key individuals are located at a given moment. Small portable transmitters, either ultrasonic or radio frequency, are worn by the key individuals, and receivers are provided in the rooms. The various transmitters emit pulses according to a preprogrammed timing sequence, and a decoding logic network connected to receive signals received in the rooms identifies the specific transmitter and room number and displays same on a status board. A programmer-recharger unit programs the pulse timing for each transmitter for identification of the wearer.

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First Claim

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Patent Owner(s)

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International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hull, Chris W 1096 85th Ave., W., Duluth, MN 55808 1 195
Simon, William F 235 W. Fairbault, Duluth, MN 55803 1 195
Torrey, William C 801 Seventh Ave., E., Superior, WI 54880 1 195

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