Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1990-04-09
1991-06-18
Swann III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
340539, 340573, G08B 1300, G08B 2100
Patent
active
050252470
ABSTRACT:
An emergency alarm system includes a portable digital pulse transmitter having a failsafe mode of activation by the user thereof. A coded pulse signal is transmitted to a decoding device in a digital receiver. The receiver has a latch relay which is connected in circuit with a power source and an alarm device. The alarm system may have a water sensor for setting off the alarm in the event the user falls in the water and may have remotely activated transmitters for locating the user with a receiver and directional antenna.
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Hobby III William M.
Swann III Glen R.
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