G - Physics
08
B
340/124, 340/144
G08B 21/00 (2006.01)
Patent
CA 2001799
ABSTRACT A buoyant alarm device which provides an alarm indication when the surface of a quiescent body of water is disturbed by the entry of an object therein. The device includes an alarm body comprising two buoyant flotation chambers attached to a connecting member. A control circuit means is positioned within the alarm body and is connected to a first electrode adjustably mounted on the connecting member and to a second electrode mounted on a flotation chamber. A third electrode is also located on the alarm body. The electrodes are positioned so that when the alarm device is placed in a quiescent body of water the first and third electrodes are above the surface of the water and the second electrode is below the surface of the water.
Bettez Manon
Genereux Emile
Bettez Manon
Genereux Emile
Gowling Lafleur Henderson Llp
LandOfFree
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