CLOSURE ASSEMBLY FOR BATH DRAIN DESCRIPTION OF THE INVENTION This invention relates to a bath drain closure assembly. More particularly, this invention relates to a bath drain closure device that is opened and closed by an electronic activation member. Bathtub drains commonly have a shutoff valve therein which can open or close the drain by manually rising up to open the drain or dropping to an initial set position to close the drain. Although such drainage closures work well, they are not convenient to operate because they are located at the bottom of the bathtub where the drain is located. In addition, there are some previous automated bath drain valves. However, valves of this type usually suffer from one or more of the following deficiencies: (1) subject parts and / or electrical connections to risk of fluid contact when placing the electrical parts and / or connections within the valve housing; and / or (2) are too expensive to manufacture, install, or repair. Although these systems have solved some of the problems, other problems still remain. It is therefore a principal object of this invention to provide a drainage closure assembly for a tub having an activation member wherein an electrical coil and an electrical contact external to the housing containing the moving parts are located. A further object of this invention is to provide a drainage closure assembly for a bathtub having a drainage closure device that is engaged by an electric activation member to move the drainage closure between an open and closed position. This and other objects will be apparent to those with experience in the art. A drainage closure assembly for use with a bathtub having a drainage closure device that is mounted for and extends through a drain port of the bathtub. Mounted below the drain port, and in communication with the drain conduit is an activation member that engages the end of the drain closure device. When activated, the activation member moves in such a manner that the drain closing device moves to an open position. When deactivated, the activation member moves in such a manner that the drainage closure device moves to a closed position. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a bathtub environment; Figure 2 is a sectional side view of a drainage closure assembly device associated with a bathtub taken along line 2-2 of Figure 1; Figure 3 is an enlarged sectional side view of a drainage closure assembly device associated with a bathtub taken along line 3-3 of Figure 2; and Figure 4 is an enlarged side view of a drainage closure assembly when activated. With reference to Figures 1 and 2, a conventional bathtub 10 has an upper spill drain 12 and a lower drain 14. The upper spill drain 12 is located in an end wall 16 of the tub 10 to drain the fluids spilled from the bath 10. The bottom drain 14 is located in the bottom 18 of the bath 10 to drain the fluids from the bottom of the bath. tub 10. The tub drain lock assembly 20 is paired with the bottom drain 14 to open and close the drain 14 to allow and prevent fluid flow. An activation switch 22 is preferably located on the end wall 16 of the tub 10 and is electronically connected to the drain closure assembly 20. Alternatively, the activation switch 22 is located on a far wall or cover of the tub. The activation switch 22 allows a user to selectively activate the drain closure assembly 20 to open and close the drain 14. An exercise source 24 is connected to the activation switch 22 to provide power to the drain closure assembly 20 through of switch activation 22. Alternatively, the power source 24 and the activation switch 22 are connected to the drain closure assembly. The power source 24 can be any conventional power source including, but not limited to, an electrical outlet. A transformer 26 can optionally be inserted between the power source 24 and the activation switch 22 to modify the energy that is sent to the activation switch 22. A control box 28 is associated with the activation switch 22. The control box 28 regulates the operation and flow of electricity through the activation switch 22. Alternatively, the control box 28 is associated with the transformer 26 and can be connected between the activation switch 22 and the drain closing assembly or between the transformer 26 and the activation switch 22. The connection can be in parallel or in series. With reference to Figure 3, the bath drain closure assembly 20 includes a strainer body 30 which is attached to the lower drain 14. A drainage closure device 32 is mounted in the strainer and is movable to permit and prevent fluid flow from the tub 10 through the drainage body 14 into a drainage conduit or tube. The drain conduit 35 may be of any configuration including that shown in Figures 3-6. Many different drainage closure devices can be used. An example includes a drainage closure device 32 as shown in Figure 3 and 4 having a plunger device 36 that is mounted within the strainer body 30. The plunger device 36 is movably associated with a plug 38 with the strainer body 30 to open or close the strainer body 30 for fluid to flow. The plunger device 36 includes a threaded surface 42 for mating with the threaded nut portion 34 of the strainer body 30. A hollow sleeve 44 extends upwardly from the threaded surface 42, and slidably receives the shaft 46. The shaft 46 extends above and below the strainer body 30, and has an upper end connected to the bottom of the plug 38. A stop 48 is attached to the shaft 46 and is also slidably received inside the hollow sleeve 44. The plunger device 36 moves the plug 38 to an open condition when a head 52 at the lower end of the shaft 46 is pressed in an upward direction. An activation mechanism or member 54 provides a means for pressing the head 52 and at the lower end of the shaft 46 in an upward direction to open the strainer body 30 for fluid to flow. Many activation members can be used. An exemplary example includes an activation mechanism 54 slidably received within housing 56. Housing 56 is attached to and in communication with conduit 35 such that ring 57 holds activation mechanism 54 within conduit 35. The activation mechanism has a solenoid piston 58 that includes a main body 60 with first and second magnets 62 positioned at opposite ends of the main body 60. A conical nozzle 64 extends from one end of the main body 60 into the conduit 35 and engages the head 52 at the lower end of the shaft 46. A coil 68 is mounted around the housing 56, and is located external to both the housing 56 as well as to the conduit 35. An electrical contact 70 extends from the activation switch 22 to the coil 68. Like the coil 68, the electrical contact 70 is also located outside both of the housing 56 as well as to the conduit 35. This arrangement is advantageous since neither the coil 68 nor the electrical contact 70 depend on seals inside the housing 56 or the conduit 35 to remain intact with the drainage of fluids from the bathtub 10.
In an alternative embodiment the drainage closure device 32 has a closure cap 72. The lid 72 is connected to the strainer 74 and moved from an open position which allows water to flow from the vat through the drain closing device as shown in Figure 5, to a closed position which prevents the fluid flow from the tub through the drainage closure device 32 as shown in Figure 6. The lid 72 moves from an open to a closed position through the coupling by the activation member 54. In operation, with reference to Figure 3, an operator (not shown) lifts the cap 38 by pressing on the activation switch 22. The activation switch 22 allows energy to flow from the power source 24 to charge the coil 68 through the electrical contact 70. The load of the coil 68 activates the piston 58 solenoid of the electronic activation mechanism 54 to change position. . The piston 58 solenoid moves towards the plunger device 36. The surface 66 inclined in the conical nozzle 64 of the solenoid piston 58 presses the head 52 into the lower end of the shaft 46 of the plunger device 36 in an upward direction when the solenoid piston 58 is activated, moving the plug 38 in an open position , as shown in Figure 4. In the open position, the plug 38 allows fluid from the tub 10 to flow through the lower drain 14, the strainer body 30, and into the conduit 35. A groove 72 is preferred. in the main body 60 receiving but not closing the head 52 of the shaft 46 when the plunger device 36 is in the open position. When it is desired to close the lower drain 14 in the fluid flow, an operator (not shown) engages the activation switch 22. The activation switch 22 now restricts the flow of energy from the power source 24 to reverse the charge in the coil 68 through the electrical contact 70. The reverse load of the coil 68 activates the solenoid piston 58 of the electronic activation mechanism 54 to change the position. The piston 58 solenoid moves away from the plunger device 36. The inclined surface 66 of the conical nozzle 64 of the solenoid piston 58 releases the head 52 at the lower end of the shaft 46 of the plunger device 36. The biasing element in the plunger device 36 acts on the shaft 46 to lower the plug 38 in a downward direction when the solenoid piston 58 is activated. Moving plug 38 to a closed condition. In the closed condition, the plug 38 restricts the fluid from the tub 10 to flow through the lower drain 14. For the closing device shown in Figures 5 and 6, the closing device is closed as shown in Figure 6 when the coil 68 is loaded by activating the piston 58 solenoid. The solenoid piston moves towards and engages the cover 72 to move the cover to the closed position. When the load on the coil is reversed, the piston 58 moves away from the cover 72 and the cover falls into a closed position. Accordingly, it is seen that this invention will achieve at least all of these stated objectives.