Abstract:
The invention relates to a toilet system affording hygienic environment by attachment of a hand held sprayer and additional features on the existing toilet system. The hand held sprayer that delivers water spray comprises a reinforced flexible hose, a filter to eliminate the pollutants in the water, a valve to regulate the flow, a mixing valve that supplies tempered water, a T-adapter assembly to tap water from an existing plumbing fixture, a holder assembly for placement of the sprayer with various positions using an adjustable bracket, and a hose hanger for arrangement of the hose. The new features include a toilet seat having a water splash guard on underbody of the seat and a filler element around the bracket to offset the inclined toilet lid.

Description:
RELATED APPLICATIONS 
   This application is continuation-in-part (CIP) of prior U.S. patent application Ser. No. 10/751,546 applied on Jan. 5, 2004 now U.S. Pat. No. 6,941,590, which is fully incorporated herein. 

   BACKGROUND OF THE INVENTION 
   1. Field of Invention 
   This invention relates to a toilet system attached a hand held water spraying apparatus, engaging in delivering instant water supply for personal and environmental hygiene. 
   2. Description of Related Art 
   The invention in earlier application has been improved by adding new features, which include multiple layered reinforced flexible hose to bear the continuous high pressures, a filter for separating solid particles and impurities from water, a mixing valve that provides tempered water for the use in the cold temperature, a T-adapter together with matching couplings to tap water from an existing plumbing fixtures, a modified hose hanger mounted on the existing toilet seat fasteners, a holder assembly with new features for placement of the sprayer with various positions, a filler element around the bracket on the top edge of water tank to keep the toilet lid in the flat position, and a toilet seat having a water splash guard under the seat to protect water escape through the gap between the toilet seat and the bowl. 
   The flexible hose in the current market has limited options available for the use of this invention. One choice is a shower hose, which is used to convey the high pressurized water for the bathtub or sink. The shower hose generally has two layers, in which one layer of the inner flexible hose is wrapped with the other layer of the flexible metal or plastic tube. The shower hose has a cosmetic appearance, but it is not durable enough to be used for an extended amount of time under the continuous high water pressure. Besides, the inner flexible tube has a large diameter to carry much of water for the use in the bath or sink. The hose with the larger diameter holds more pressures than the one with the smaller, causing more inflexibility of the hose under the internal built-up pressures. 
   Another choice is one of the plumbing hoses, which are designed to supply water under the continuous high pressure. The plumbing hoses have large inner diameter to deliver much of water and general categories of the PVC-reinforced hoses and stainless steel braided hoses. The plumbing hoses are good to supply water in a static environment, but they are not enough flexible for dynamic movement and lack of the ornamental appearances. The present invention includes a reinforced hose having the decorative appearances by combining the good features of the shower hose and the plumbing hose. This invention requires small amount of water for the purpose of the use, adopting a flexible inner hose with small diameter. The inner hose with small diameter absorbs less of the pressure from the source to contribute more flexibility, and affords room to place the second layer of braided metal mesh for reinforcement. The exterior ornamental layer including the flexible stainless steel adds more durability as well as the cosmetic appearances. 
   The mixing valve is provided to supply tempered water for the use in the cold environment or for better personal care. The previous application uses only cold water tapped into the existing water supply line, which may not be allowed for the use if the water temperature is extremely cold. If the hot water source is available, the present invention utilizes it to supply warm water by employing the mixing valve connected to both of the hot and cold water. Since the hot water source is located in the various areas around the toilet, the present invention employs an angle stop valve behind the toilet as for the illustration. 
   The T-adapter is applied for this invention, which includes but not limited two outlet male threads and one inlet female rotatable nut. The female rotatable nut is affording convenience for connection in a confined area, because it can be connected without rotation of the large body and locked with the body placed in various directions. The T-adapter may require matching couplings for the inlet and for the outlet to adapt to the various sizes of the existing plumbing fixtures. The various sized T-adapter may eliminate the matching couplings, but it brings more complexity and costs more for productions. 
   The modified hose hanger with new features is introduced for this invention to reinforce and facilitate arrangement of the hose and installation to the existing seat fasteners. The single body of hose hanger has prop lines on the body to fortify its structure and protruding lines to prevent the hose being mobile in the openings. The protruding lines make the hose placement easier at any part of the free length, because they lock in the hose to prevent slippage. The opening for permanent placement of the hose locks a part of the hose so that the hose hanger is not easily pivoted side to side. The indentation surface is provided on the mounting area for more friction to prevent spinning around. 
   A holder of the holder assembly has an additional feature for placement of the sprayer, in which the sprayer can be placed in various ways including a high placement and a low placement. The high placement that implements the controller body of the sprayer requires an angled base in the opening of the holder. However, the low placement that takes on the extension bar of the sprayer requires a straight lined base in the opening of the holder. Therefore, the low placement has need of the offset element so that the sprayer is placed in level in the holder. 
   The adjustable bracket of the holder assembly is introduced for mounting on various types of the water tank of toilets. The outlook of the toilet water tank takes varied shapes including rectangles and trapezoids. The adjustable bracket has the features to be adjusted to the varied environment. It also has the feature to be mounted on any available surfaces if the toilet water tank does not have room for the bracket to be placed on. The adjustable bracket accommodates the filler element such as a foam strip around the top edge for the leveled placement of the toilet lid. 
   The toilet seat having a water splash guard underbody is presented to protect water escape through the opening between the toilet seat and the bowl. The splash guard around the seat opening is located between the seat and the bowl to add more protection from water splash whenever the sprayer is used inside bowl. The shape and width of the water splash guard is determined from the features of the seat and the bowl. However, the width of the water splash guard is preferably larger than the gap between the seat and the bowl for better protection. The water splash guard can be placed with full or partial enclosure according to the seat opening type. 
   SUMMARY OF THE INVENTION 
   The present invention provides a toilet system attached a hand held sprayer, wherein the new features are added to achieve more functions than the prior application. The hand held sprayer, namely a “sprayer”, requires a special long flexible hose including multiple layered structures to hold the continuous high pressurized water, to be flexible to maneuver under the internal high pressures built up, to be thin as much as possible for easy handling, and to be aesthetic as possible. Because the existing hose does not satisfy these specifications, the new hose is presented to meet the purposes. The inner tube with smaller diameter supports the flexibility under the high pressures and maintains the thinness for easy handling. The smaller tube also offers the room for placement of the next layer such as the flexible metal braided mesh to hold the high pressures for continuous use. The flexible braided metal layer is again wrapped with the flexible ornamental material to add more durability and aesthetic beauties. 
   The flexible hose is connected to the valve to obtain water supply. The valve is for adjusting the water flow to the system and turning off in the emergency. The valve is then connected to the mixing valve for supplying tempered water. Two inlets of the mixing valve are connected to the hot water source through a water supply line and the cold water source through a T-adapter tapped into the existing water supply line leading to the toilet water tank. The mixing valve has a control knob to adjust mixture of the hot and the cold water for the individual use. The T-adapter may require two matching couplings to adapt to the various sizes of the plumbing fixtures. 
   The modified hose hanger is supplied for arrangement of the long flexible hose. The one opening under the body is for permanent placement of a part of the flexible hose connected to the valve. The hose hanger is reinforced with the protruding prop lines aligned on the body. The prop lines lock the hose to prevent the hose hanger being pivoted side to side. The upward opening on the body is for temporary placement of the loose part of the hose. The protruding lines in the opening support stable placement of the hose without slippage over the hanger. The indented surface on the mounting area adds more resistance for the hose hanger to be rotated. 
   The new sprayer holder assembly has more adaptability to the various environments for placement using a spacer. The attachable spacer at the base of the holder enables the sprayer to be placed in the low placement with a stable state. The holder is secured to the bracket with the fasteners to be mounted over the rim of the water tank. The filler element placed around the bracket on the lid or on the top of the water tank is introduced for levelness of the lid. The bracket is fully adjustable within a limit in accordance with the varied angled mounting surfaces. Finally, the toilet seat has a water splash guard under the seat body to protect from water escape through the gap between the seat and toilet bowl. The water splash guard is fully or partially enclosed around the opening of the seat according to the seat configurations and the purposes of the use. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is a perspective view showing a toilet system attached a hand held sprayer connected to the existing hot and cold water supply lines. 
       FIG. 2  is an exploded perspective view of the plumbing fixtures that include a filter, a valve, a mixing valve, a hot water supply line, a T-adapter, and matching couplings to supply tempered water to the hand held sprayer. 
       FIG. 3  is a perspective view of the new flexible hose for the hand held sprayer. 
       FIG. 3A  is a structural view of the conventional shower hose having a large inner hose enclosed with a flexible ornamental metal tube. 
       FIG. 3B  is a structural view of the conventional plumbing hose or water supply line having a large inner hose braided with a metal mesh to hold the continuous high pressures. 
       FIG. 3C  is a structural view of the currently invented flexible hose taken on the line  3 — 3  of  FIG. 3  having a small inner hose braided with a metal mesh and then enclosed with a flexible ornamental metal tube. 
       FIG. 4  is a perspective view of the hose hanger. 
       FIG. 4A  is a section view of the hose hanger taken on the line  4 — 4  of  FIG. 4 . 
       FIG. 5  is a perspective view of the sprayer holder assembly having an adjustable bracket attached on the body. 
       FIG. 5A  is a perspective view of the holder body isolated from  FIG. 5 . 
       FIG. 5B  is a perspective view of the adjustable bracket isolated from  FIG. 5 . 
       FIG. 6  is a perspective view of the adjustable bracket. 
       FIG. 6A  is a section view taken on the line  6 — 6  of  FIG. 6  with the body in an upright position. 
       FIG. 6B  is a section view taken on the line  6 — 6  of  FIG. 6  with the body in an angled position. 
       FIG. 7  is a perspective view of the toilet water tank lid with foam strips attached as a filler element except the places for the bracket. 
       FIG. 7A  is a perspective view of the toilet water tank with foam strips attached on the top edge as a filler element except the places for the bracket. 
       FIG. 8  is a front view of the holder assembly for the sprayer mounted over the side top edge of water tank with its lid covered. 
       FIG. 8A  is a side view of the holder assembly for the sprayer taken on the line  8 — 8  in  FIG. 8 . 
       FIG. 9  is a side view of the holder assembly for the sprayer and for the lavatory items mounted over the side top edge of the water tank having two angled side walls with its lid covered. 
       FIG. 9A  is a side view of the holder assembly for the sprayer taken on the line  9 — 9  in  FIG. 9 . 
       FIG. 10  is a perspective view of the close-ended toilet seat with the upside down having the water splash guard attached on underbody. 
       FIG. 10A  is a section view taken on the line  10 — 10  of  FIG. 10 . 
       FIG. 10B  is a cross-sectional side view of the toilet bowl with the toilet seat in  FIG. 10  closed. 
       FIG. 11  is a perspective view of the open-ended toilet seat with the upside down having the water splash guard attached on underbody. 
   

   DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   Reference is now made in detail to the present invention, examples of which are illustrated in the accompanying drawings wherein reference numerals having the same first two digits indicate related elements, such as  36  and  365 . The numerals having the same first three digits indicate same components with different elements, such as  365  and  3651 . General structures of the present invention will be described following by details and the function of components. Referring to  FIG. 1 , a perspective view of the present invention, a toilet system attached a hand held sprayer, is shown and indicated the number  1 . The system is generally composed of a hand held sprayer  10 , namely “sprayer”; a flexible hose  31 ; a filter  43 ; a valve  40 ; a mixing valve  91 ; a hot water supply line  92  from a hot water source  59 ; a T-adapter  93  with a matching coupling  94  for the water supply line  55  and a matching coupling  95  for the existing angle stop valve  52 ; a hose hanger  36  mounted on the toilet seat fastener  28  using a nut  281 ; a holder assembly  76  for the sprayer  70 ; a holder assembly for the lavatory items  75 ; a water splash guard  812  for the toilet seat  818 . There are filler elements included on the top edge of the water tank  65  and on the lid  60 , but they are hidden. More details are in the following with full descriptions. 
   The sprayer  10  in  FIG. 1 , comprising a controller  101  with a pushbutton  20  and an extension bar  103  with a spray tip  105 , is connected to a flexible hose  31  in  FIG. 1  with means to secure including but not limited a coupling  315  of  FIG. 3 . The flexible hose  31  utilizes a filter insert  319  in  FIG. 3  to eliminate impurities in the water. The sprayer  10  utilizes small amount of water, requiring the flexible hose  31  having an inner hose with small diameter. It does not demand as much water as the conventional hose delivers, wherein the conventional hose has the inner hose with large diameter to supply much of water. The flexible hose  31  for the use of the sprayer  10  requires multiple conditions of (1) the length being long enough to support for personal and environmental hygiene, (2) the durability being strong enough to hold continuous high pressurized water for a long period, (3) the flexibility being comfortable to move for the use under the high internal pressures built up, (4) the thickness being as small as possible to maneuver for the application, and (5) the appearance being aesthetic for the display in the bathroom. The conditions of (1) through (4) are related to the functional elements and the condition of (5) is related to the aesthetic element for the hose. 
   The conventional shower hose having two layers as in  FIG. 3A  includes an inner hose  312  having a large diameter  3186  enclosed by an ornamental element  3141  made of metal or plastic. The flexible inner hose  3121  having a large diameter  3186  absorbs high pressures from the water supply source, if not released, causing severe inflexibility of the hose. The outer ornamental element  3141  is usually not strong enough to hold the continuous high pressures for a long period. The plumbing hose as in  FIG. 3B  used for the water supply line includes a reinforced inner hose  3122  enclosed with the outer layer of the braided metal mesh  3131 . The plumbing hose having the large inner hose and heavy braided metal mesh  3131  is sturdy to hold the high pressure but not much flexible to use for the hand held sprayer. Its outer appearance is not decorative due to the lack of ornamental element. The present invention as in  FIG. 3C  includes a flexible inner hose  3123  having a small diameter  3188 , wherein the small inner hose affords room for the next layer while keeping the same or smaller thickness. The inner hose  3123  is enclosed with the next layer of the braided metal mesh  3132  and then with the outer layer of the ornamental element  3142  including but not limited flexible metal tube to fulfill the conditions of said functional and aesthetic elements. 
   The hose  31  in  FIG. 3  is further connected to the outlet  435  of the filter  43  with means to secure for further eliminating the pollutants in the water. The means to secure include but not limited the rotatable female threaded nut of the hose  311  and the male thread  4351  of the filter  43  for connection with seals. The inlet  431  of the filter  43  is connected to the outlet  405  of the valve  40  with means to secure to get the flow of water regulated. The means to secure include but not limited the female inlet thread  4311  of the filter  43  and the male thread  4051  of the valve  40  for securing with seals. The valve  40  is used for regulating and turning off the water flow with the handle  402  for use of the sprayer. The inlet  401  of the valve  40  is connected to the outlet  915  of the mixing valve  91  with the means to secure with seal to receive the tempered water. The means to secure include but not limited the rotatable female threaded nut  4011  of the valve  40  and the male thread  9151  of the mixing valve  91  for connection with seals. The rotatable female threaded nut is useful for connection, because it allows the valve  40  secured to the mixing valve  91  while maintaining the handle  402  in any position. All the means to secure have seals including but not limited washers, gaskets, or tapes between the female threaded openings and the male thread for sealing in the connection. 
   The mixing valve  91  connected to the valve  40  is introduced for mixing the hot water and the cold water carried from the two inlets. One inlet  913  of the mixing valve  91  is connected to the hot water source  59  in  FIG. 1  through the water supply line  92  with means to secure. The means to secure include but not limited the rotatable female threaded nut  923  of the water supply line  92  and the male thread  913  of the mixing valve  91  for connection with seals. The other inlet  911  of the mixing valve  91  is connected to the outlet  935  of the T-adapter  93  with the means to secure to receive the cold water. The means to secure include but not limited the rotatable female threaded nut  9111  of the mixing valve  91  and the male thread  9351  of the T-adapter  93  for connection with seal. The handle  916  of the mixing valve  91  is used for regulating the water temperature for various usages. The hot water source  59  is located at the various places in the bathroom, which may require special skills for the proper work. 
   The T-adapter  93  is connected between the existing angle stop valve  52  in  FIG. 1  and the water supply line  55  leading to the toilet water tank. The T-adapter having the sizes of ½ IPS is generally used for receiving the water supply from the angle stop valve  52 , delivering to the water supply line  55  and to the mixing valve  91 . The inlet  931  of the T-adapter  93  is connected to the angle stop valve  52  with means to secure. The means to secure include but not limited the rotatable female threaded nut  9311  of the T-adapter  93  and the male thread of the existing angle stop valve  52  for connection with seals. The outlet  933  is connected to the inlet  552  of the water supply line  55  in  FIG. 1  with means to secure. The means to secure include but not limited the rotatable female threaded nut  5521  of the water supply line  55  in  FIG. 1  and the male thread  9331  of the T-adapter  93  for connection with seals. 
   The matching coupling  95  in  FIG. 2  is employed for the T-adapter  93  to connect to the existing angle stop valve  52  having unlike size with means to secure. The means to secure include but not limited the rotatable female threaded nut  9311  of the T-adapter  93  and the male thread  9531  of the matching coupling  95  for connection with seals. The inlet  951  of the matching coupling  95  is connected to the outlet  522  of angle stop valve  52  with means to secure. The means to secure include but not limited the female thread  9511  of the matching coupling  95  and the male thread  5221  of the angle stop valve  52  for connection with seals. The matching coupling  94  in  FIG. 2  is used for the T-adapter  93  to connect to the existing water supply line  55  having unlike size with means to secure. The means to secure include but not limited the female thread  9411  of the matching coupling  94  and the male thread  9331  of the T-adapter  93  for connection with seals. The outlet  943  of the matching coupling  94  in  FIG. 2  is connect to the inlet  552  of water supply line  55  in  FIG. 1  with means to secure. The means to secure include but not limited the rotatable female threaded nut  5521  of the water supply line  55  in  FIG. 1  and the male thread  9431  of the matching coupling  94  for connection with seals. 
   The hose hanger  36  in  FIG. 4  includes the extended lengthy flat bar  364  having multiple openings for placement of the flexible hose  31  in  FIG. 3 . The opening  361  in  FIG. 4  located but not limited under the bar in the direction having but not limited lateral path is for permanent placement of the hose at one near end connected to the filter  43  as shown in  FIG. 1 . The opening  361  in  FIG. 4A  of the hose hanger  36  has a raised element  3611  at the entrance to prevent the hose being displaced and a protruding line  3612  to lock in the hose. The hose hanger  36  stays stable at a certain position without much pivotal movement because the protruding line  361  of the hose hanger  36  locks a part of the hose  31  which is connected to the immobilized filter. The upward opening  362  in  FIG. 4A  of the hose hanger  36  is for temporary placement of any free part of the flexible hose  31  as shown in  FIG. 1 . The raised elements  3621 ,  3623  in  FIG. 4A  at the entrance of the opening  362  assist to prevent the hose  31  being displaced and the protruding line  3622  supports to lock in the hose  31  at any position. The prop lines  3643 ,  3644  in  FIG. 4A  on the bar  364  are located to reinforce the bar strength. The mound  365  is provided to reinforce the area for mounting and the small hole  3651  on the mound  365  in  FIG. 4A  is located for securing on to the fastener  28  in  FIG. 1  using the nut  282 . The indented surface  3652  on the mound  365  around the hole  3651  is added for the hose hanger  36  to prevent its pivotal movement. Because the toilet body  651  generally has the angled edge  6511  near the mounting location, the hose hanger  36  is supplied with angled body  3641  for placement over the edge  6511  as shown in  FIG. 1 . 
   The holder assembly  76  in  FIG. 5  for placement of the lengthy sprayer  10  in  FIG. 1  comprises the holder body  77  and the bracket  78 . The holder body  77  in  FIG. 5A  has a body  771  that contains the opening  773  for placement of the bracket  78  and the opening  772  for placement of the sprayer  10 . The holder body  77  includes the concave element  774  for securing the lengthy sprayer  10  in  FIG. 1  in the place using the same concave element of the sprayer body. The concave element  1013  in  FIG. 1  on the controller  101  of the sprayer  10  is for the high placement and the one  1039  on the extension bar  103  is for the lower placement of the sprayer  10 . The lower placement of the sprayer  10  requires the spacer  776  in  FIG. 5A  on the base of the opening  772  to offset the difference arisen from the dissimilar thicknesses between the controller and the extension bar in order that the sprayer is placed in the evenly manner. The holes  775  on the holder body  771  are for the fasteners to be secured to the bracket  78  or to any available mounting places. 
   The adjustable bracket  78  in  FIG. 5B  for the holder  77  in  FIG. 5A  includes the body  781  having a reversed U-type clamp  785  with an opening  7855  for mounting over the top edge of the water tank  65 . The reversed U-type clamp  785  in  FIG. 6  have three body elements: first body element  7854  being secured inside of the toilet water tank preferably but not limited above the water line  651  as shown in  FIG. 8A , second body element  7852  being secured outside of the water tank, and third body element  7851  connecting first and second body elements for being placed on the top edge of the water tank. First body element  7854  in  FIG. 6  includes small openings  7853  for means to secure  7858  in  FIG. 8A . Second body element  7851  in  FIG. 6  has the surface element  7841  for placing securing means including but not limited the foam tape  789  having adhesive on both sides for additional bondage. Second body element  7852  in  FIG. 6  is extended for connection with the spacer element  7843  through the cutout element  7842 , wherein the spacer element  7843  has means for securing including but not limited the loop hole  7844  at the end using means to secure  787  including fasteners with the lock washer  7871 . The cutout element  7842  is located to facilitate pivotal movement of the spacer element  7843  at the end of second body element  7852 . 
   The adjustable bracket  78  in  FIG. 5B  also includes the body  781  having an adjustable frame  782  that formulates the various angles for the reversed U-type clamp  785 . The adjustable frame  782  in  FIG. 6  is connected to second element  784  of the reversed U-type clamp  785  through the bridge element  7822 . The bridge element  7822  having the cutout  7821  is located below third element  7851  of reversed U-type clamp  785  to give room  7855  for the toilet lid  60  in  FIG. 8A . The cutout  7821  in  FIG. 6  on the bridge element  7822  is located for the adjustable frame  782  to be easily pivoted. The adjustable frame  782  includes the prop element  7824  to reinforce the body structure, wherein the prop element  7824  contains the mound elements  7823  for the fasteners  778  in  FIG. 8  to be secured. The prop element  7824  in  FIG. 6  also contains the lengthy loop hole  7825  having the indentations  7826  around, wherein the indentations are located for more friction to lock the spacer element  7843  over the loop hole  7825 . The spacer element  7843  in  FIG. 6  is secured anywhere along the lengthy loop hole  7825  with means to secure including but not limited screw and the lock washer  786 , making the reversed U-type clamp  785  be angled with certain degrees as shown in  FIG. 6A  and  FIG. 6B . 
   The adjustable bracket  78  assembled with the holder body  77  is placed over the top edge of the toilet water tank having straight wall as in  FIG. 8  or angled wall as in  FIG. 9 . The adjustable bracket  758   FIG. 9  is applied to placement of lavatory items with the holder body  75  attached and secured to the reversed U-type clamp. The most part of the bracket  78  is hidden in the holder body  77  except the reversed U-type clamp  785 , wherein the clamp  785  is secured to the interior wall of water tank  65  with the fasteners  7858 . Third element  7851  in  FIG. 8A  of the reversed U-type clamp  785  has some material thickness, leaving the gap between the water tank  65  and its lid  60  surrounding the area. The filler element  607  including but not limited foam tape  789  having adhesive on one side is employed to offset the gap. The filler element  607  in  FIG. 7  is located on the body  601  of the water tank lid  60  to be leveled except the areas  605 ,  606  for mounting brackets. The filler element  657  is alternatively located on the body  651  in  FIG. 7A  of the water tank  65  to level the lid  60  except the places  655 ,  656  for mounting brackets. 
   The water splash guard  812  in  FIG. 10  is placed for the use of the sprayer inside of the bowl. It is located underbody  8184  of the toilet seat  81  around the opening  8182  to protect water escape through the gap between the toilet bowl  85  and the seat  81  in  FIG. 11 . The seat  81  in  FIG. 10  generally contains multiple bumpers  814  on the underbody  8184  around the opening  8182  in the middle of the seat body  818  in  FIG. 10 . The bumpers around the opening  8182  create the gap  857  in  FIG. 10B  when the seat  81  is placed on the top edge  853  of the toilet bowl  85  in  FIG. 10B . The water splash guard  812  in  FIG. 10  is mounted for covering the gap  857  through the means to secure including but not limited the fasteners  8127  on the base  8124  of the water splash guard  812  with sealer  8125  as in  FIG. 10A . The closed-ended water splash guard is fully located around the opening  8182  as in the  FIG. 10  to protect the full surrounding gap. The width of the splash guard  812  is preferably greater than the thickness of the bumper  814 , and the edge  8121  is to be placed inside the bowl as close as possible, so that the water escape through the gap  857  can be minimized. The edge  8121  having round or beveled rim facilitates the placement of the water splash guard into the toilet bowl  85 . The open-end water splash guard is partially located around the opening  9192  as in the  FIG. 11  for the open-ended seat  91 . The water splash guard  912  in  FIG. 11  for the open-ended seat  91  is mounted on the underbody  9184  of the seat  918  using means to secure  9127  on the base  9124 . The edge  9121  of the water splash guard is preferably placed into the bowl as close to the inner top edge of the bowl to minimize water escape.