Portable emergency alert system
First Claim
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1. A portable emergency alarm system comprising:
- a power source;
a digital receiver having a latch relay connected in circuit with said power source;
at least one of a sound alarm and light means connected in circuit with said latch relay;
a portable digital transmitter having a failsafe activating means for triggering said receiver means latch relay and thereby energizing said sound alarm and light means; and
a water sensor attached to said portable digital transmitter to energize an alarm system whenever the transmitter is immersed in a body of water, said water sensor having a pair of dissimilar metal electrodes spaced by an insulator for generating a galvanic current for actuating said transmitter.
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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.
48 Citations
5 Claims
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1. A portable emergency alarm system comprising:
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a power source; a digital receiver having a latch relay connected in circuit with said power source; at least one of a sound alarm and light means connected in circuit with said latch relay; a portable digital transmitter having a failsafe activating means for triggering said receiver means latch relay and thereby energizing said sound alarm and light means; and a water sensor attached to said portable digital transmitter to energize an alarm system whenever the transmitter is immersed in a body of water, said water sensor having a pair of dissimilar metal electrodes spaced by an insulator for generating a galvanic current for actuating said transmitter. - View Dependent Claims (2, 3, 4, 5)
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Specification