ALARM
First Claim
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1. Apparatus for transmitting an alarm signal in the form of an electromagnetic wave upon the occurrence of a selected condition, said apparatus comprising:
- first switch means having first and second spaced contacts, said first means being normally open and being closed when said condition occurs;
a float supporting said first means and adapted to float on the surface of a body of water with one contact above the waterline and the other contact below the waterline, said condition being produced when waves of water are generated on said surface and both contacts are interconnected by a continuous liquid path;
a shield at said first means for preventing rain from establishing said path;
a transmitter in said float which, when actuated, produces said signal;
a power source in said float, said transmitter being actuated when coupled to said source;
second switch means in the float which is normally open and coupled to the first means, said second means being adapted to close when the first means is closed and, once closed, remaining closed until manually reset or until the source is drained of power; and
third means in the float connecting said first means, second means, source and transmitter to couple the source to the transmitter when the second means is closed.
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Abstract
A system for sounding an alarm when an unauthorized person or unidentified object enters a swimming pool. The system employs a float containing a battery powered transmitter tuned to a selected fixed frequency. The transmitter is energized when the person or object enters the water whereby a signal at said frequency is transmitted. A receiver tuned to the same signal acts as a monitor by receiving the signal and reproducing same in form suitable for sounding the alarm.
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Citations
2 Claims
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1. Apparatus for transmitting an alarm signal in the form of an electromagnetic wave upon the occurrence of a selected condition, said apparatus comprising:
- first switch means having first and second spaced contacts, said first means being normally open and being closed when said condition occurs;
a float supporting said first means and adapted to float on the surface of a body of water with one contact above the waterline and the other contact below the waterline, said condition being produced when waves of water are generated on said surface and both contacts are interconnected by a continuous liquid path;
a shield at said first means for preventing rain from establishing said path;
a transmitter in said float which, when actuated, produces said signal;
a power source in said float, said transmitter being actuated when coupled to said source;
second switch means in the float which is normally open and coupled to the first means, said second means being adapted to close when the first means is closed and, once closed, remaining closed until manually reset or until the source is drained of power; and
third means in the float connecting said first means, second means, source and transmitter to couple the source to the transmitter when the second means is closed.
- first switch means having first and second spaced contacts, said first means being normally open and being closed when said condition occurs;
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2. Apparatus as set forth in claim 1 including fourth manually controlled means for varying the separation between said contacts.
Specification
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Current AssigneeJorge G. Codina
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Original AssigneeJorge G. Codina
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InventorsCodina, Jorge G.
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Primary Examiner(s)Caldwell, John W.
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Assistant Examiner(s)Trafton, David L.
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Application NumberUS05/003,940Time in Patent Office729 DaysField of Search340/224,261,244C 325/116US Class Current340/539.26CPC Class CodesG08B 21/084 by monitoring physical move...
