Patent ID: 7006792

Claim:
A portable communication system for a production facility comprising: at least one transmitter station that is adapted to be set up at a first location in a production facility, the transmitter station having at least one transmitter that is operable to transmit a wireless signal, a transmitter power supply that converts alternating current from a first power source to direct current for powering the transmitter, a transmitter light mounted proximate the transmitter station and wired to the transmitter so that it is illuminated when the transmitter transmits the wireless signal, a switch for controlling the transmitter and the light to indicate that service is required at the location; a receiver station that is adapted to be set up at a second location in a production facility, the receiver station having at least one receiver for receiving the wireless signal from the transmitter, a receiver power supply that converts alternating current from a second power source to direct current for powering the receiver, a receiver light mounted proximate the receiver station, and a sound generator; wherein the transmitter station and receiver station are portable in that they may be set up for immediate use by simply connecting the transmitter station to the first power source and connecting the receiver station to the second power source, and wherein actuation of the switch causes the transmitter light of the transmitter station to be illuminated and the transmitter to transmit the wireless signal to the receiver that in turn illuminates the receiver light and activates the sound generator; and wherein the transmitter station includes two or more transmitters, two or more transmitter lights, and two or more switches that are connected in two or more parallel circuits, and wherein the receiver station has two or more receivers, and two or more receiver lights that are illuminated, and wherein a tone generator is provided for sending an audible signal when the switches are actuated.