Patent ID: 6246329
Filing Date: 2001-06-12
Classification: G08B

Abstract:
A swimmer's safety device comprising:a housing having a removable lid encasing bottom and side surfaces thereof;a circuit board within said housing;a source of battery power, a water pressure sensitive switch, a timer controlled by said water pressure sensitive switch, and a solenoid valve controlled by said timer, with each being electronically coupled with said circuit board within said housing;a chamber within said housing enclosing a dye material and a water reactive chemical coupled to said solenoid valve, with said chamber having an input port and a quiescently closed output valve;and a valve inlet coupled to said water pressure sensitive switch;with said water pressure sensitive switch being normally open until said valve inlet is submerged in a body of water beyond a predetermined depth at which said water pressure sensitive switch closes;with the running of said timer being initiated upon the closing of said water pressure sensitive switch;with said solenoid valve becoming operable to open said chamber input port to water in response to the running of said timer for a predetermined length of time;and with said chamber output valve being pressure regulated to open and release the dye material from said housing into said body of water as a visual alarm alert in response to the reaction of said chemical with the water being let into said chamber once said valve inlet is lowered to said predetermined depth and continues at or below said predetermined depth for said predetermined length of time.