RETROFIT SYSTEM FOR SELF-CLEANING TOILET WASHING MACHINE AND TOILET INCORPORATING SAME

Abstract

The present invention generally relates to a toilet seat assembly and toilet cover assembly for toilet comprising a toilet seat assembly and toilet cover assembly, the toilet seat and toilet cover provided with seal(s) between the toilet seat and toilet cover and between the toilet seat and toilet bowl when in the closed position; a water conduit for the supply of water from a source of pressurized water; a spray assembly mounted on the toilet seat assembly and toilet cover assembly and comprising: a sprayer conduit adapted to accept a supply of pressurized water from the water conduit; and a sprayer array connected to the sprayer conduit and disposed on the toilet seat and toilet cover assembly, and adapted to direct a spray of pressurized water across an interior bowl surface of a toilet bowl once the toilet seat and toilet cover assembly are connected over a toilet bowl; and at least one valve to control the supply of water to the sprayer conduit. The present invention also includes a toilet fitted with the toilet seat and toilet cover assembly to create a self-cleaning toilet and the associated method of retrofitting an existing toilet with such an assembly.

Claims

1. A toilet seat and toilet cover assembly for a self-cleaning toilet comprising: a. a toilet seat and toilet cover assembly comprising a toilet seat and a toilet cover and a hinge connection assembly adapted to connect said toilet seat and toilet cover assembly over a toilet bowl, whereby both toilet seat and toilet cover are adapted to be moved from an open position to a closed position, and said toilet seat and toilet cover provided with a seal between said toilet seat and toilet cover when in said closed position, and wherein said hinge connection assembly is adapted to connect said toilet seat and toilet cover assembly over a toilet bowl; b. a water conduit for the supply of water from a source of pressurized water; c. a spray assembly mounted on said toilet seat and toilet cover assembly and comprising: i. a sprayer conduit adapted to accept a supply of pressurized water from said water conduit; and ii. a sprayer assembly connected to said sprayer conduit and disposed on said toilet seat and toilet cover assembly, and adapted to direct a spray of pressurized water across an interior bowl surface of a toilet bowl once said toilet seat and toilet cover assembly are connected over a toilet bowl; and d. at least one valve to control said supply of water to said sprayer conduit.

2. A toilet seat and toilet cover assembly according to claim 1, wherein said sprayer assembly comprises an hydraulically-driven oscillating sprayer.

3. A toilet seat and toilet cover assembly according to claim 2, wherein said sprayer assembly is disposed on said toilet seat portion.

4. A toilet seat and toilet cover assembly according to claim 1 wherein said sprayer assembly comprises a mechanical arrangement driven by pressurized water from said sprayer conduit and adapted to change the direction of said spray of pressurized water across said interior bowl surface and against said toilet seat and toilet cover assembly.

5. A toilet seat and toilet cover assembly according to claim 1, wherein said time control valve comprises an hydraulically-driven timer assembly.

6. A toilet seat and toilet cover assembly to claim 1 wherein said at least one valve comprises a shut off valve adapted to interrupt said supply of water to said sprayer conduit when said toilet seat or toilet cover are moved to an open position.

7. A toilet seat and toilet cover assembly according to claim 2, wherein said toilet seat portion comprises a housing and said sprayer assembly is disposed within said housing.

8. A toilet seat and toilet cover assembly according to claim 1 wherein said sprayer assembly comprises at least two spray heads adapted to deliver respectively different spray profiles.

9.-28. (canceled)

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG. 1 is a schematic flow diagram of a cleaning system for a toilet assembly according to an embodiment of the invention;

[0022] FIG. 2 is a perspective view of the toilet tank, cover, seat, bowl, and control systems used for cleaning system according to an embodiment of the invention and as part of a toilet assembly herein;

[0023] FIG. 3A is a side perspective view of a cleaning system tank, cover, seat, bowl, and control assemblies with the seat and cover open according to an embodiment of the invention;

[0024] FIG. 3B is a front perspective view of the cleaning system tank, cover, seat, bowl, and control assemblies of FIG. 3A with the cover and seat closed, according to an embodiment of the invention.

[0025] FIG. 4 is a rear perspective view of the cleaning system, cover, seat, bowl, and control assemblies of FIG. 3A with the cover and seat closed, according to an embodiment of the invention;

[0026] FIG. 5 is an exploded view of the embodiment of the cleaning system cover, seat and bowl assemblies according to FIG. 3A;

[0027] FIG. 6 is a partial and enlarged longitudinal cross-sectional view of the control assembly of FIG. 5 showing the T-valve with 90 L-Port, according to an embodiment of the invention;

[0028] FIG. 7 is an underside view of the toilet seat assembly used for cleaning system according to an embodiment of the invention.

[0029] FIG. 8A is an exploded perspective view of FIG. 7 toilet seat assembly used for cleaning system according to an embodiment of the invention.

[0030] FIG. 8B is an enlarged view of the spray arm assembly 600 and spray nozzle(s) 601.

[0031] FIG. 9 is a partial and enlarged longitudinal cross-sectional view of the gear box case of FIG. 8 and is a partial and enlarged longitudinal cross-sectional view of the interior of the Lid Open Sensor & Valve of FIG. 8.

[0032] FIG. 10 is a front cross-sectional view of FIG. 3B showing the rotation of the spray arms and jets in an embodiment of the invention.

DETAILED DESCRIPTION

[0033] Referring to FIGS. 1-10, the Machine's design depicted here represents one of many potential configurations. It consists of pressurized liquid from a supply source like a residential water system entering a supply line, piping, or channel (34) and entering a control box (31) which consist of a mechanically powered timer (32) which is driven by torsion spring or similar method. The timer may serve as the one touch operation activator or on off switch and setting control. The timer may count down and may rotate a connected L-Valve or T-Valve (39) from the closed position (38) to the open position (37). The L-Valve or T-valve (39) may contain a 90-degree L-Port or similar mechanism (40). When the L-Valve is in the open position and the time is not activated (37), the liquid may flow from the supply line piping (36) to the Tank (701) via piping (35) allowing the tank to fill and the toilet to operate normally. When the timer (31) is engaged, the T-Valve may be in the closed position (38) thus deflecting liquid material through piping (36) to collect Cleaning Agent from the container (33) and flow to the Seat Assembly (200).

[0034] Liquid material is automatically prevented from entering the toilet assembly when conditions dictate, like when the cover assembly (120) is open, via a sensor which may consist of an interlock valve, or magnetic solenoid valve, or other means (203). One option for this would be using a magnet (126) mounted to the toilet seat cover (121), via a sensor mount or trigger (127) so that when the toilet cover (121) was in the closed position, the magnet could be positioned to draw a magnetic damper (502) within housing (501) that may be depressed via a spring (504) out from a water channel or piping portion (503 of piping 36) allowing liquid material to flow through the channel.

[0035] If operating conditions are acceptable, then pressurized liquid material section (306 of 1000,) can enter the gear box case (301) via piping or water channel portion (307, 309, of pipping 36) from cover open sensor valve (203) and through a connecter (308) into an impeller gear or gear housing (315) turning an impeller (302) that may be used to drive the motion of the spray jet nozzle(s) via water pressure. The impeller may be fixed around an axle (303) and drive a series of drive-reduction gears (304), worm gears (305), bevel gears in gear box (312). Spray Arm Piping Connection(s) and (313) Spray Arm pipe or tubes (310, 311)while allowing liquid material portion (314, 314b of 1000) to pass through into the spray arm assembly(s) (600) which may be made up of one or more spray heads (204, 204b, 206, 206b, 208, 208b) containing on or more spray nozzle(s) (601). The spray arms may be interconnected by one or more flexible bellows (205, 205b, 207, 207b) to allow the spray arms to contour to the seat assembly. The spray nozzles may move or rotate to deliver high velocity liquid stream (1000) across one or more surfaces. The spray heads may be held in place by Spray Arm retention feature(s) (210) that may attached directly to the inside of the seat (201). Finally, the seat assembly (200) may be lined with a seat gasket or molded fitted edge (122) to prevent liquid material from escaping between the seat 201 and the bowl assembly (400) during cleaning.

[0036] The cover assembly (120) may consist of the Lid (121) which may be lined with a Lid Gasket or molded fitted edge (122) to prevent liquid material from escaping between the cover and seat 201 during cleaning. One or more window(s), door(s), or aperture(s) openings (124), fitted with opaque or clear parts of any size or shape may be cut, manufactured, attached or added to a toilet cover, seat tank or a combination/variation thereof (123). The window may be opaque or clear. It may be colored, frosted, textured, smooth, open or a combination thereof. It may have the ability to open via a hinge (128) which when opened and closed may interact with a Magnet/Interlock Trigger or similar (126) which may be attached to a Magnet/Interlock Trigger Mount (127) to prevent or allow the flow of liquid material.

[0037] With the cover (121) and seat (201) both sealed by gaskets (122 and 202) then a vacuum may be created in the negative space between the three preventing liquid material from draining during normal flushing conditions. Therefore a vent or valve (125) is needed for liquid resistant vent or slits add to a toilet cover seat bowl or attachment to allow air to pass into the toilet bowl but not permit liquid or socover materials to enter or exit when the toilet seat and or cover are sealed.

[0038] The cover assembly 120, seat assembly 200 and Bowl Assembly 400 may be connected together via a Universal Seat Mounting Brackets & Hinge (402) that may be attached to the bowl (401) by the common method for attaching toilet seat assemblies.

[0039] The Tank assembly (700) may consist of a Tank (701) and a Tank cover (702) which are depicted for reference purposes though they are not part of the Machine. Flushing the toilet may be the first step in the cleaning operation followed by activating the timer (32).

[0040] The parts of these embodiments are listed and described below.

TABLE-US-00001 Assembly # Part # Name 120 Lid Assembly  121 Cover  122 Cover Gasket  123 Window  124 Window Opening  125 Vent  126 Magnet / Interlock Trigger  127 Magnet / Interlock Trigger Mount  203 Lid Open Sensor & Valve  128 Lid Hinge 30 Control Assembly  31 Control Box  32 Timer On off Switch  33 Cleaning Agent Holder  34 Piping From Supply Line  35 Piping to Tank Line  36 Piping to CA & Seat Assembly  37 90 L-Port Valve Open to Tank  38 90 L-Port Valve Closed to Seat  39 Valve Body  40 L-Port Ball & Rotation Arrow 200 Seat Assembly  201 Seat  202 Seat Gasket / Molding Fitting  203 Lid Open Sensor & Valve  204 Spray Arm Bottom L  204b Spray Arm Bottom R  205 Flexible Bellows Bottom L  205b Flexible Bellows Bottom R  206 Spray Arm Mid L  206b Spray Arm Mid R  207 Flexible Bellows Top L  207b Flexible Bellows Top R  208 Spray Arm Top L  208b Spray Arm Top R  209 Spray Arm Cap L  209b Spray Arm Cap R  210 Spray Arm Retention Feature  211 Seat Hinge & Interlock Solenoid Mount 300 Gear Box  301 Gear Box Case Assembly  302 Impeller Turbine  303 Impeller Axle  304 Drive & Reduction Gear(s)  305 Worm Gear  306 Water From Lid Sensor  307 Piping from Lid Sensor  308 Lid Sensor Piping Connection  309 Water Channel  310 Pipe to Spray Jet Assembly L  311 Pipe to Spray Jet Assembly R  312 Bevel Gears Box  313 Spray Arm Piping Connection  314 Liquid & Cleaning Agent to Spray Arm(s)  315 Impeller Housing 203 Lid Sensor  501 Solenoid Body Interlock  502 Magnetic Damper  503 Water Channel  504 Spring 400 Bowl Assembly  401 Bowl  402 Universal Seat Mounting Brackets & Hinge 700 Tank Assembly  701 Tank  702 Tank Lid Water 1000 High Pressure Water Jett 600 Spray Arm  601 Spray Nozzle(s) Assembly