Note: Descriptions are shown in the official language in which they were submitted.
~ ' 21406~7
This invention ~elates to toilets for use in
recreational vehicles such as motor homes and travel trailers
and is particularly related to a universal toilet system for
recreational vehicles that is adaptable to installation in a
wide variety of locations within the recreational vehicle.
This application is a divisional application of
applicant's Application Serial No. 2,018,784 filed June ~2, 1990.
Toilets for recreational vehicles (RV) are generally
manufactured by a third party and supplied to the RV
manufa~-turer for installation into a vehicle. In the past,
each toilet has been designed for use in a particular location
within a recreational vehicle, such as a bench along one side
of a bathroom or in a corner of the bathroom, etc. Because
vehicle manufacturers typically provide a number of RV -~els,
a number of different toilets are required to meet the
. .
manufacturer's needs. The RV manufacturer is thus required to
inventory a number of different toilets to ~cc_ -d~te the
various RV models. Accordingly, it is an object of the
present invention to provide a single toilet system which is
configured to be used in a variety of locations within a RV at
the desire of the RV manufacturer. It is a further objective
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of the invehtion td'increase the manufacturer's flexibility in
the interior design of the vehicle.
The universal recreational vehicle toilet system ~ ;
disclosed in this application includes an upper bowl section
cont~in;ng a toilet bowl with a bottom outlet and a lower base ~';
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section upon which the bowl section is mounted above the RV
floor. A removable waste holding tanX is inserted into the
base section, or at least a portion of the tank is inserted
into the base section below the bowl outlet and contains a
disconnectable fluid coupling with the bowl outlet for
receiving waste therefrom. The base section, either
individually or in cooperation with a wall structure within
the ~V body forms a stowage compartment in which the holding
tank is stowed in fluid connection with the bowl outlet. The
tank and any waste odors or spillage are isolated from the RV
body interior living space. The tank is removable from the
stowage compartment through an opening in the RV sidewall for
disposal of the waste therefrom.
The bowl section and the base section of the toilet
, "
system are constructed in such a manner that the front of the
bowl section can be rotated about an upright axis relative to
the base section to adapt the installed position of the bowl
section in the RV to a desired position. This enables the RV
manufacturer to position the base in a variety of locations
within the recreational vehicle and further enables the bowl
section to be positioned in a variety of orientations relative
to the base.
The universal toilet system further allows for
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dif~erent sized and shaped tanks to accommodate different
applications. The tank has an inlet opening in the top wall
.,. " "
through which the waste enters the tank. A blade valve closes ~- '
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the op ning when the toilet is not in use.
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21~0617
The bowl is flushed by water provided to the toilet
from a pressurized water source in the RV. The flush
mechanism of the toilet includes an electrically actuated
valve to control the flow of flush water. i~
The invention relates to the corl~Lol for the flush
valve and the tank blade valve being remotely mounted to a wall ~;
within the RV and connected to the base and bowl section via
flexible cable and electrical wire respectively. ~he RV
manufacturer is free to mount the control where desired,
regardless of the orientation of the bowl section upon the base
section. A coupling mech~ni~- between the base section and tank
operatively connects the tank blade valve to the valve actuator
cable. The coupling -~h~nicm includes an actuating member
mounted to the base section and an actuated - her mounted to the
tank which automatically couple as the tank is moved into the
stowed position in the base section.
--- Further objects, features and advantages of the
invention will become apparent from a consideration of the
following description and the appended claims when taken in
connection with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a side elevational view of a ;
representative recreational vehicle having the universal
recreational vehicle toilet system of this invention; O;
Figure 2 is an exploded perspective view of three of '
the major components of the universal toilet system; ~
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Figure 3 is an exploded view of the major components
of the universal toilet system similar to Figure 2 with a
modified version of the waste holding tank;
- Figure 4 is a vertical sectional view of an
assembled universal toilet system installed in a recreational
vehicle;
Figure 5 is an enlarged fragmentary sectional view
of the fluid coupling ~etween the bowl and holding tank as
seen from substantially the line 5-5 of Figure 4;
Figure 6 is a sectional view of a portion of the
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holding tank top wall showing the actuated member of the tank
"~'''''~''''
blade valve coupling ; ~h~nis;
Figure 7 is a cross sectional view of a vent valve
in the holding tank top wall;
Figure 8 is an exploded perspective view of the
actuating ~ember and linkage of the tank blade valve coupling .
ech;~nlsm; ~.
Figures 9-12 are plan views of a recreational
vehicle bathroom showing various locations and orientations of
the universal toilet system of this invention; and .
Figure 13 is a sectional view of the tank and base
. section as seen from substantially the line 13-13 of Figure 4
illustrating the sidewalljof the base section guiding the tank
for ~otion in and out of the ba$e section. - ~::
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Figure 1 illustrates a representative recreational
vehicle (RV) 16 which embodies a universal toilet system
according to this invention. RV 16 is illustrated as a travel
trailer which is adapted to be pulled behind a towing vehicle
(not shown). Principles of the invention are applicable to
other types of RVs including without limitation, motor homes.
Recreational vehicle 16 comprises a wheeled chassis
18 on which.is supported the RV body 20. Chassis 18 comprises
a frame 22 having a tongue 24 at the forward end via which the
trailer connects to the towing vehicle. The chassis further
comprises t~de~ axles which are suspended from the frame 22
by a suitable suspension system and to which wheels 26 and 28
are attached.
Body 20, in general, comprises a floor 30, an
upright side 32, and a roof 34 forming an enclosure. ~he body
is shown to.be generally rectangular in shape although it is
to be appreciated that any given body may have departures from
such a shape. Side 32 comprises four sidewalls, namely a
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~ront 32a, a rear 32b, and two lateral sidewalls 32c. It is
the right hand one o~ these lateral sidewalls 32c which is
viewed directly in Figure l, and it is arranged at a right
angle to floor 30. Sidewall 32c is provided. with a : :
" , j . , .
rectangular oponing 36 which is shown in ~igure l tolbe closed
by a door 38. This opening provides external access to the
~universal toilet system within the RV body. . :~ '
Figures 2 and 3 portray the general organization and '.~ '
arrangement o~ .the ma~or components o~ the universal toilet ~ ~
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214~617
system according to this invention. The components
illustrated in Figure 2 are a bowl section 42, a base section
44, and a holding tank 46. The bowl section 42 includes a
toilet bowl 48 having a bottom outlet 50 and a seat 52 and
cover 54 (shown in Figure 4) hinged to the rear 56 of the bowl
via mounting bosses 58. The. bowl discharge- outlet is
concentric about an axis 51 (shown in Figure 4). The bowl
section.42 has a front portion 59 which is spaced from the
outlet and .extends in a direction perpendicular to the axis
51. The bowl section has a longitudinal axis 60 extending
forward from the rear 56 through the front portion 59.
The base section 44 includes a generally horizontal
top wall 62 having an opening 64 therethrough. The top wall
62 is supported above the RV floor 30 by an upright sidewall
66. The sidewall 66 includes an opening 68 in the rear 67 of
the base section as shown in Figure 3. Base section 44 also
has a horizontal longitudinal axis 69 which projects forward
from the opening 64 to the front portion 71.
Figure 4 is a sectional view of the assembled toilet
system within the RV body 20. The base section 44 is
supported upon the RV floor 30 with the bowl section 42
supported upon the top wall 62. The bottom outlet 50 of the
bowl 48 projects through the opening 64 in the base top wall
into the base section interior. The bowlt outlet 50' and the
op~i ng 64 are concDntric about the generally vertical,
upright axis 51. The bowl section 42 includes a downwardly
ext~n~jng support skirt 70 which rests upon the top wall of
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the base to provide support for the bowl section. The top
wall o~ the base section includes an upstanding flange 72
which can be attached to the skirt 70 with a screw 74 or other
suitable fastening means. The skirt 70 and flange 72 are both
arcuate and concentric about the axis 51.
Referring to Figure 2, holding tank 46 has a
general~y overall curved shape and comprises a top wall 80, a
curved sidewall 82, and a bottom wall 84. The top and bottom
walls 80 and 84 respectively are generally horizontal while
the sidewall 82 is upright and curved in an upright plane
forming a tank which is curved along its longitudinal length.
The purpose o~ the curved tank will be described below. ~he
tank top wall 80 includes an inlet opening 86 adjacent one end
85 of the tank for receiving waste water from the outlet 50 of
the bowl. Tank end 85 is inserted into the opening 68 in the
rear 67 of ~he base section to a stowed position in which the
tank inlet 86 is in registry with the base opening 64 and the
bowl outlet 50 as shown in Figure 4. In the stowed position a
~luid passage connection is formed between the bowl and the
holding tank as will be described in detail below.
The base section 44 forms a stowage compartment for
the tank 46. The base section and tank can be of relative
sizes such that the entire tank fits within a stowage
c~ _~tment ~ormed by the base section. Alternatively, as
shown in Figure 4, the base section and an interior wall
structure, such as wall 88, cooperate to form a stowage
tment 49 upon the floor 30 to store th~ holding tank
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21~06f7
with only the end portion 85 of the tank inserted into the
base section. The stowage compartment 49 is used to provide
an enclosure for the tank within the recreational vehicle
interior yet separated from the RV occupant space so as to
contain any waste odors or spillage from the tank.
The stowage compartment 49 is bounded on one side by
the door 38 in the RV sidewall. After the tank 46 has been
filled with waste, the tank is removed from the stowage
compartment through the opening 36 in the RV sidewall 32c for
proper disposal of the waste. The tank can thus be removed
from the RV for waste disposal without carrying the tank
through the RV interior.
For ease in handling, the tank 46 is eguipped with
one or more handles such as handles 90 and 91 formed in the
top of the tank 46 and handles 92 and 93 disposed in the ends
of the tank. Handle 90 is located near the tank end 95 while
handle 92 is positioned in the end 95. Tank end 95 is
positioned adjacent to opening 36 in the RV sidewall, enabling
the tank to be grasped by handles so or 92 to pull the tank
hor~zontally out o~ the stowage compartment.
The waste holding tank includes a pivotal discharge
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pourspout 94 adjacent tank end 95 which is shown in ~igure 2
in a stowed position in solid lines overlaying the end portion
o~ the tanX. The ~o~ ouL ~s cl!osed by ,a removab}e cap 96
secured to the open end of the pourspout. The pourspout is
shown in an operable position in phantom lines in which the
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~spout projects away ~rom the tank. In this pos~tion, a filled ~
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~ 2140617 :
holding tank can be emptied by turning the tank such that the
pourspout is directed downward. A vent valve assembly 98
disposed in the top wall of the tank is opened to allow air to
flow into the tanX as the tank is emptied to enable a smooth
discharge of waste liquid through the pourspout.
The holding tank 100 of Figure 3 is constructed
similarly to the holding tank 46 of Figure 2 with the
exception that the tank is generally rectangular as opposed to
curved. Components of tank 100 which are similar to
components of tank 46 are given the same reference numeral
followed by the suffix "~".
The inlet 86 in the tank top wall is opened and
closed by a blade valve 102 horizontally disposed within the
interior of the tank. The blade valve 102, when the tank is
in the stowed position, is disposed beneath the bowl discharge
outlet and closes the bowl outlet. The blade is moved in a
. . . ..
horizontal arcuate path about a vertical axis 104 spaced from '
the inlet 86. An annular seal 106 in the inlet 86 includes an ~
inwardly and downwardly directed sealing lip 188 which ~ ?,
contacts the top o~ the blade 102 to seal the inlet 86.
The blade 102 is moved between open and closed 9
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positions by an actuator 108. Actuator 108 is remotely
mounted to a wall 110 within the recreational vehicle and ~-
connected to the blade valve via a coupling merh~nism 109 on
the base section and the tank. The coupling ~ch~i 109 iS .~
designed to connect and ~isconnect as the tank is moved to and ;;
rrOm the fully stowed position. ;''
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A portion of coupling mechanism 109 is disposed on
base section top wall ~2 and another portion is disposed on
the holding tank top wall 80. The portion of the coupling
mechanism on the base section is shown in ~igure 8 and
includes an actuating member 111. The actuating member 111 is
pivotally mounted on the bottom side of the top wall 62 and is
connected to a shaft 112 by a screw 113 or othPr suitable
fastening means. The shaft 112 extends through the base
section top wall and washer 115 and includes' an integrally
formed lever 114 about the base secti~n top wall at a right
angle to the shaft. The shaft 112 and actuating member 111
are caused ~o rotate about the axis 104 by movement of a
flexible cable 116 attached to the lever 114 through aperture
120 by a ret~in;ng clip 118. The cable 116 is contained
within a tubular cover 122 which is secured to a mounting
member 124 which in turn is secured to the top wall 62. The
mounting member 124 includes an aperture 127 through which
shaft 112 passes and an upturned flange 125 containing an
aperture 126. Cable 116 is routed through the aperture 126
with the cable cover 122 being secured to the mounting member
124 by a C-clip 128 seated within a groove 129 in the terminal
portion of the cover. The other end of the cable 116 is
attached to the actuator 108 such that upon rotation of the
actuator, the cable is caused to sllde within the covér''122,
in turn rotating lever 114 and actuating member 111.
The portion o~'the coupling ~ch~ni! 109 on the
., . . ,-. ~ , .
holding tank comprises an actuated member 132 disposed on the
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21~0617
top wall of the holding tank and concentric with the axis 104
when the holding tank is in the stowed position. When the -
tank is in the stowed position, the actuating and the actuated
members are operatively connected in a driving relationship
whereby rotation of the actuating member about axis 104
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imparts rotary motion to the actuated member about the axis -- ~ ~
: . .
104. It is this motion which in turn operates blade 102.
Actuated member 132 is journaled within an opening
138 made in the top wall of the tanX in a sealed manner and
has an integral shaft portion 140 projecting into the tank.
This shaft portion has a non-circular cross sectional shape
and vent valve member 142 is fitted onto it by a matching hole
in a central hub portion 143 of the vent valve member 142. A
blade portion 145 of the vent valve member projects radially
from the hub portion. Member 142 is axially kept on shaft 140
by integrally flexible catches or barbs 146 on the axial end
of the shaft. The vent valve member 142 and the actuated
member 132 are retained on the tank by axially capturing the
.,,, . ~. .;.
tank top wall. The blade 102 has an operative coupling with ~-
the actuated member 132. This coupling is provided through a - ~A'~'"'"
rotary lost mot~on c~nnection o~ the blade 102 with the vent ~'
valve member 142.
A venting aperture and seal 148 is provided in the;; ~,
tank top wall. The venting aperture is closed by the blade
portion 145 on the vent valve member 142. In operation,
rotation of the actuated member 132 in the blade op~n; n~
direction will impart motion to the vent valve member 142 to
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21~0617
open the vent thereby venting the head space of the tank.
After the tank head space is vented, the lost motion
connection between ~he vent valve member and the blade 102
will cause the blade to rotate about axis 104 opening the
inlet 86 in the tank top wall.
When the inlet 86 is to be closed, rotation of the
actuated member 132 in the opposite direction will rotate the
blade 102 to close the tank inlet and further rotate the vent
valve member 142 into position closing the vent aperture 148.
The operative coupling between the actuating and
actuated members is in the form of a disconnectable connection
which makes and breaks in accompaniment of bodily motion of
the holding tank into and out of the base section. The nature
of the operative coupling between the actuating and actuated
members is in the form of diametrical tongue 134 on one of the
members, the actuated member in this ~mho~; -nt, and a
diametrical slot 136 on the other, the actuating her. When
the valve has been operated to the closed position by actuator
108, the diameters of the tongue and s~ot lay on a line which
is parallel to the direction in which the holding tank moves
into and out of the stowed position. Because the ends of the
slot are open, the tongue can move readily relative to the
axis 104 allowing conn~ction and disconnection of the coupling
me~h~nlsm 109 to occur.
Operation of the connected coupling to a position
which opens the inlet 86 will result in the diameters of the
slot and tongue bein~ moved out of parallelism with the
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2140617
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direction of movement of the tank into and out of the base
section. Consequently, if an attempt is made at this time to
move the tank from the base section, the misalignment of the
connection relative to the direction of tank removal will
restrict the movement of the holding tank and prevent it from
being removed from the base section. Thus it is required that
the inlet 86 be closed before the tank is withdrawn and this
can avoid potential splashing of the tank contents out of the
- inlet or other undesired consequences which could result from
an open inlet 86.
A water line 160 is used to provide flush water to
.. .
the toilet bowl to flush the bowl after use. The water llne --
160 passes through RV interior wall 161 and is co~nected to
inlet 163 of an electrically actuated valve 162. Water flows
from the valve 162 through outlet tube 164 to a nozzle 166 in ~ ~.
the bowl 48. The nozzle directs the flush water
:~ ;' :i'l ' .: .
circumferentially onto a ledge 168 formed integrally in the
bowl 48. The water line 160 i5 supplied by the RV ::
manufacturer and contains water under pressure such that when
the valve 162 is opened, the water will flow through the valve
and nozzle 166. A flush ~alve operator, consisting of a push
button electrical switch 170, is disposed within the center of :~
.:. :....:
the .bladel valve actuator!108 and is co~cted to the flush
~ valve 162 by an electrical wire 172. Upon operation of the
switch 170, the valve 162 is opened from its normally closed
position to permit flush water to flow into the bowl.
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2140617
To flush the toilet after use, the actuator 108 is
rotated to rotate the blade 102 to open the tank inlet 86.
The switch 170 is then operated to open valve 162 allowing
flush water to flow through the nozzle into the bowl to flush
the contents of the bowl into the holding tank. Upon release
of the switch 170, the valve 162 is closed, terminating the
flow of flush water. Actuator 108 is then rotated in the
opposite direction to close the tank inlet 86.
One significant feature of the universal RV toilet
system s that the holding tank inlet opening 86 automatically
connects to and disconnects from the toilet bowl outlet 50 in
acc_ -n; ?nt o~ movement of the holding tank into and out of
the base section 44. Likewise, as described above, the
coupling ech~n; C~ between the actuator 108 and the blade
valve 102 alsa automatically connects and disconnects with
movement of the holding tank into and out of the stowage
c _ , - rtment . . . .
It is important for the separable connection between
the holding tank inlet opening and a toilet bowl outlet to be
o~ a sealed nature when connected. 3riefly, the holding tank
is guided as it is moved into the base section by the inside
sur~ace o~ the sidewalls 66 o~ the base section engaging the
sidewalls 78 of the holding tank as shown in Figure ~3. ~his
will serve to establish ~airly precise alignment o~ the bowl
outlet and the holding tank inlet. Additional means however
is ~esoci~ted with the bowl outlet and the holding tank inlet
to take into acco~n~ certain tolerance variations which
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2140617
inherently exist in the commercial manufacture of the product
to ensure that the final connection is properly sealed.
~etails are shown in Figure 5.
A flange member 180 is fitted around the opening 64
in the top wall 62 and the bowl outlet 50. Member 180 forms . ~:
one part of the guide mechanism for guiding the holding tank
inlet into precise final registry with the bowl outlet. The
other part of the guide mechanism is formed by a member 182
which is attached to the top wall of the holding tank around :~.. :.-
inlet 86 via screws 183. -
~ Member 182 comprises a central annular portion 184 .-
which serves to retain the annular elastomeric seal 106 on the
tank around inlet 86. Specifically, seal 106 comprises a main
body 186 which is disposed in a circular cavity 187 around the
circular inlet 86. A pair of annular lips 188 and 189 project
from main body 186. The annular retention portion 184 fits
onto the top of the holding tank around cavity 187 and .:~
compresses the annular body of the elastomeric seal downwardly ~
into the cavity to provide a seal of the elastomeric body to . . .
the holding tank around inlet 86. Member 182 further : .
comprises ch~nnels 190, 192 formed along its longitu~ l side i ' .:
edges parallel with the direction of movement of the holding . .. .
tank into and out of the base section. ....
- Flangé member 180 comprises an annular portion 194,
which fits around the bowl outlet projecting through .the top
wall 62, and side edge portions 196, 198 which, like channels
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214061 7
lgo, 192, are parallel with the direction of motion of the
holding tank into and out o~ the base section.
- The two members 180, 182 are so disposed around the
bowl outlet and the holding tank inlet respectively so that
the side edge portions 196, 198 slide into and out of the side
edge channels l90, 192 as the tank is moved into and out o~
the basa section. The flange member 180, a symmetrical ring,
-, ,, ~ i:
is fixed to the opening 64 in the top wall 62 with the bowl
outlet inserted into the member 180. This enables the RV ~ ~ -
manufacturer to install the bowl section at any radial ~ -
position relative to the base section while the side edge ~ -
channels 190, 192 are fixed in position parallel to the
direction of ~ovement of the tank to and from the stowed --~
position. ~ ~
The sealing lip 189 is canted upwardly toward the ~ -
bowl outlet. In relaxed condition, the ~ree edge of this lip ''
projects above the n. ;~al level of the flat horizontal lower
sur~ace of ~lange member 180. The relative position of the
~ree edge of this lip is such that when members 180, 182 are ;
~ully engaged to place the tank inlet 86 in vertical alignment ;~
with the bowl outlet opening 50, lip 189 is deflected slightly
downwardly ~rom its free position to thereby exert an upward -
,. . " ;.:~
sealing ~orce around and against that portion of flange member
180 whlch ~its around t~e bowl outlet. - -
The second lip 188, below the level of the first lip
189, ~s canted downwardly toward the holding tank and has a
cooperative association with the blade 102 which opens and
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21~0617
closes inlet 86 so that when the blade is closed, the second
sealing lip 188 is deflected slightly upwardly to provide
annular sealing contact with the blade around inlet 86.
Details of the vent valve assembly 98 are
illustrated in Figure 7. The valve assembly comprises a main
body or fitting 202 which is inserted within an opening in a
tank top wall. Fitting 2D2 is fashioned with an integral
circular boss 204, the lower portion of which projects into
the interior of the holding tank. The boss has a top wall 206
with a recess 208 formed centrally therein. ~ecess 208, at
the bottom, comprises a circular opening 210 concentric with
the boss. Four arcuate vent openings 212 are in wall ~06
exten~;ng around recess 208 on a common circle. Openings 212
provide, via the interior bore of boss 204, venting of the
tank interior to atmosphere.
A valving element 214 comprises a bifurcated shank
216 which fits closely within hole 210. A circular actuator
button 218 is at the top of the shank 216 and a helical spring
220 is disposed around the shank and between the bottom wall
o~ the recess and the actuator button. The spring biases the
valving element 214 in the upward direction so as to urge a
suitable ciosure portion 222 against the lower circular edg~
of the boss 204, so as to close the interior bore of the boss
and hencé, the vent openings 212. The illustrated
construction Or the closure portion comprises a rigid circular
portion 224 which is affixed to the lower end of shank 216
. . ~,.
within the holding tank which supports an annular gasket 226 ~
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which seals against the lower circular edge of the boss 204
when the valve is closed.
The broken line position shown in Figure 7 thus
represents the closed position to which the valve element is
normally spring biased. In this position, the closure portion
prevents waste materials and v2pors from passing through the
vent openings. The solid line position illustrates the
actuated position which is used during dumping to vent the
interior head space of the holding tank. A stop 228 is
provided on button 218 for limiting downward displacement so
that the button does not close off the vent openings when the
valve is depressed. Thus, actuation of the valve assembly 201
always allows air to pass through the openings into the
holding tank to prevent the creation of a partial vacuum which
might give rise to belching and burping during dumping.
Fro~ the above description of the components of the
universal RV toilet system, it can be seen that the toilet is
userul for placement within a variety o~ locations and
orientat~ons within a recreational vehicle. The base section
is fixed to the ~loor of the recreational vehicle in a
location which permits a holding tank to be slid i~to and out
of the base through the sidewall of the recreational vehicle.
The bowl section ~an be~mounted on top of the base section in
a number of dif~erent positions relative to the base section
so that the RV manufacturer can choose the orientation of the
toilet bowl. The blade valve actuator and flush valve switch
are remotely connected to the toilet system thr~u~h a flexible
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2140617 '~:
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cable and electrical wire enabling the control to be remotelY ~;
mounted to a wall or other structure in the recreational
vehicle bathroom, without regard to the orientation of the ;
bowl section relative to the base section. ~ ;
. . ,:- - .:
Figures 9 through 12 illustrate the flexibility of
r ~
the universal recreational vehicle toilet system according to ;
this invention ~y showing a variety of toilet locations within
a recreational vehicle. ;~
Within the RV body 20, a bathroom 301 is formed by ;~
interior vertical walls 302, 304 and 306 along with RV
sidewall 32c. Entry is gained into the bathroom 301 through a
door 3a8 from the interior of the RV body. In Figures 9 ~ -
. ;; . , ;.,;
through 12, like components are indicated by the same
reference numeral followed by a suf~ix a-d. The toilet system
~" ~
components are given the same reference numeral in Figures
9-12 because these ~- ,sn~nts are identical, only the
orientation of the bowl section relative to the base section
varies in these figures.
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In Figure 9, the base section 44 of the universal
toilet system is disposed adjacent the interior wall 306a with ;;
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the longit~l~tnal axis 69 o~ the base section exten~ing
.. ;.
generally parallel to the wall 306. A horizontal panel 310a
~orms a continuation o~ the base section ~op wall 62 and -
extends ~rom the rear side 67 of the base section to the RV ~;
sidewall 36c. ~he panel 310a along with the base section top
- : :.
wall forms the top of the stowage c~ rtment for the waste ;~
holding tank within the recreational vehicle interior.
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The holding tank is inserted into and removed from
the stowage compartment through the opening 36 in the sidewall
32c which is shown closed by the door 38. When the holding
tank is inserted into the stowage compartment, the holding
tank inlet 86 and the toilet bowl outlet 50 are horizontally
aligned in vertical registry with one another forming the
sealed fluid coupling as previously described. The bowl
section ~2 is mounted to the top of the base section 44 with
the front portion 59 extending radially at a right angle 314a
relative to the base section. The actuator 108 and switch 170
are shown mounted to the wall 306a.
In Figure 10, the toilet is located in the corner
formed ~y the interior walls 304b and 306b. ~anel 310b, which
forms a portion o~ the top o~ the stowage compartment, has
been increased in length to extend rrOm the ~.V sidewall 32c to
the rear 67 of the base section 44. In Figure lo, the bowl
.
section 42 has been mounted upon the base section 44 with the ,
front portion 59 extending radially at an obtuse angle 314b ~'
relative to base section, illustrating ano~cher orientation of '' '',
the bowl and base sections relative to each other. In the ,, ";~
toilet systems shown in Figures 1~ and 9, the holding has been '' ,''
a rectangular tanX such as tank 100 shown in Figure 3. ~,,'',
In Figure 11, the base section 44 is placed in the
bathroom ~ith the rear 67 abutting the interior wall' 306c of ''
the RV. The toilet system is located in a position such that
the wheel 318, which is separated from the vehicle interior by
a wheel ,well 320, is located laterally betw~en the toilet
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system and the Rv sidewall 32c. Because of this obstruction,
it is not possible for the holding tank to pass laterally from
the toilet to the RV sidewall as shown in Figures 9 and 10. A
curved holding tank such, as the tank shown in Figure 2, is
used in this application and extends ~ehind the toilet and
around the wheel to sidewall 32c. The stowage compartment
beneath panel 310c likewise extends around the wheel well 320
and to the sidewall 32c. The stowage compartment can be
located underneath a bench or in a closet in the recreational
vehicle so that its does not intrude into the occupant living
space. The bowl section 42 is mounted to the base section 44
with the front portlon 59 extending radially at an acute angle
314c relative to the base.
Referring now to Figure 12, the universal toilet
system is located in the corner of the bathroom formed by the
interior wall 306d and the RV sidewall 32c. The rear 67 of
the base section 44 is abutting the interior wall 306d such
,. :,
that a holding tank is inserted through the rear wall 32b of
the RV and through the interior wall 306d as opposed to being
inserted laterally through the sidewall 32c. The bowl section ~;~
42 is again ~ounted to the base section 44 with the front
portion 59 ext~n~in~ radially at an acute angle 314d relative
to one another. ~ ;
I From t~elabove examples, it can be seen that the
universal RV toilet system of the present invention can be
used in a variety of positions and orientations within a ;
recreational vehicle. The same base section 4~ and the bowI
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21~0617
section 42 are used in all of the examples shown in Figures
9-12 with the only di~ference between installations being the
orientation of the bowl section relative to the seat section.
The bowl and base sections are configured so as to
enable the bowl section to be mounted on the base section with
the front portion of the bowl section extending radially
relative to the base section in any direction within a range
of radial directions. This range of directions could be a
360 range in which the bowl front portion could extend in any
direction relative to the base. As a practical matter,
however, this range will generally be less than 360-. Due to
the raised height of the tank stowage compartment above the RV
floor, it is not practical to position the bowl front portion
ext~n~;ng over the stowage c~ ~rtment. As a practical
matter, approximately a 270~ range of radial directions will
b~ adequate to provide the vehicle manufacture -xi --
flexibility in the placement Or the toilet system within an
.. .. ... .
RV.
The flush control, comprising an actuator for thetan~ blade valve and an operator for the flush water valve, is
re~otely mounted from the bowl and base sections to enable the
. ..
; RV manufacturer to place these controls where desired,
irregardless o~ the orientation of the bowl section relative
to thé bas- sect~'on. A~ia result, the universai toilet system
enables the RV manufacturer to stoc~ only one toilet system
~or use in a variety of RV models. Thus the inventory
~ requirements and the toilet complexity are gre~tly reduced for
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the manufacturer. Accordingly, the objectives of the present
invention of reducing the number of toilet systems needed by :-
the manufacturer and increasing the manufacturer's flexibility
in interior design of the vehicle have been achieved.
It is to be understood that the invention is not :
limited to the exact construction illustrate and described
above, but that various changes and modifications may be made
~ .;:: .,
without departing from the spirit and scope of the invention
as defined in the following claims.
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