Patent ID: 9622466
Date: 2017-04-18
CPC Classifications: A01M,B05B

Claim:
1. A motion activated water repellant sprinkler device comprising: a water spraying element connected to a pressurized water source through a water flow control valve; a main control unit operative to initiate opening and closing of the water flow control valve to control water flow to activate and deactivate spraying action; a motion detector for sensing motion in an area adjacent the sprinkler device, the motion detector coupled to said main control unit and configured to send a signal to the main control unit when motion has been detected, said main control unit initiating activation of the water spraying element through opening of the water flow control valve in response to the motion detector signal; a motor and cam mechanism coupled between the main control unit and the water spraying element, said main control unit activating the motor to rotate the cam mechanism when motion has been detected; and a permanent magnet associated with said cam mechanism, rotation of said cam mechanism moving the permanent magnet to a first position adjacent to a metal plunger in the water flow control valve to pula the plunger back with magnetic holding force and open the valve, said plunger being spring-biased to move forwardly and close the valve when released from the holding force of the magnet, further rotation of said cam mechanism moving the magnet to a second position away from the metal plunger so that the plunger, when released from the holding force of the magnet, moves to close the valve under said spring bias.