A - Human Necessities – 01 – M
Patent
A - Human Necessities
01
M
A01M 29/00 (2006.01)
Patent
CA 2153219
Gardeners' have employed many methods to keep cats and other animals from enter-ing and causing disruption to flowerbeds and the like. Such methods have included fences, electrified ground panels and the deliberate cultivation of plants noxious to the animals. The invention disclosed herein details a simple yet effective alternative device to those currently available, that does not, in any way, cause harm to the animal and which is comprised of a motion detector having a sensitivity adjustment control for setting the range within which detection takes place. The motion. detector controls the operation of a water flow control valve which is normally biased closed pending receipt of an electrical signal from the detec- tor, which signal is generated by the detector in response to movement within the detector's operating range. Upon receipt of the detector signal a solenoid on the water flow control valve activates, biasing the valve open and permitting water flow from a conventional garden hose supply, through the valve to a perforated spray head. The spray head may be arranged around the perimeter of a flowerbed to create a "wall" of water, or may be nothing more than a simple oscillating or rotary sprinkler. The duration of the water spray may be set utilizing a timer function of the motion detector, which timer limits the duration of the detector's elec- trical output signal and hence the water spray.
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