Dental prophylaxis and water conservation device

An in-home water conservation device for use with a plumbing fixture connected to a water supply line, said water conservation device comprising:

• a tank for receiving and storing water therein, said tank having an inlet connected to the water supply line, said tank adapted to receive and store an amount of water from the water supply line, said tank also including an outlet in communication with the plumbing fixture;
• inlet valve means associated with said inlet and the water supply line, said inlet valve means for alternately diverting water from the water supply line into said tank and directing water from the water supply line to the plumbing fixture;
• outlet valve means associated with said outlet and the plumbing fixture, said outlet valve means for alternately obstructing or permitting the flow of water from within said tank to the plumbing fixture;
• and
• recycling means for removing water from said tank through said outlet and delivering said water to the plumbing fixture, said recycling means being operable when said inlet valve means is directing water from the water supply line to the plumbing fixture thereby mixing said water from within said tank with water from the water supply line and providing mixed water for use through the plumbing fixture.

A dental prophylaxis and water conservation device connectable to a home plumbing fixture and a household hot a water supply line, said device comprising:

• attaching means for connecting said device to the hot water supply line;
• an accumulator tank having a water inlet coupled to the hot water supply line, said tank adapted to receive and store an amount of water from the hot water supply line sufficient to purge water of an undesired temperature water from the water supply line, said tank including a water outlet in communication with the plumbing fixture, said tank also including air pressure means for generating a supply of pressurized air within said tank in response to receiving purged water from said water supply line therein;
• an inlet valve associated with said water inlet and the water supply line, said inlet valve for alternately diverting purged water from the hot water supply line into said tank and directing non-purged water from the hot water supply line to the plumbing fixture;
• an outlet valve associated with said tank outlet and said plumbing fixture, said outlet valve alternately obstructing or permitting the flow of purged water from said tank to the plumbing fixture;
• and
• recycling means for removing purged water from said tank through said water outlet and delivering said purged water to the plumbing fixture and providing said purged water for use through the plumbing fixture;
• a receptacle adapted to receive an abrasive material therein, said receptacle including a receptacle inlet in communication with said tank and the water supply line to receive water therefrom into said receptacle, said receptacle also having a receptacle outlet through which water and can flow out of said receptacle and a portion of said abrasive material being carried by the flow of water;
• a handpiece connected to receive air from said air pressure means and to receive water from said receptacle outlet, said handpiece adapted to simultaneously discharge a stream of air, water and abrasive material and including a nozzle capable of directing said stream toward the teeth of a person;
• a valve controlling the amount of air received from said air supply means;
• and
• a valve controlling the amount of water received through said receptacle.