A toilet system

Abstract

A toilet system (101) comprising: a toilet bowl body (103) defining a first cavity (105) configured to receive waste (107); a second body section (109) defining a second cavity (111) downstream of the first cavity (105). The system has: a first barrier (117) selectively configurable to open or close a first passage (113) between the first cavity (105) and the second cavity (111); a second barrier (119) selectively configurable to open or close a second passage (115) between the second cavity (111) and a downstream waste collection system (120); and an actuation mechanism (121) to actuate the first barrier (117) and the second barrier (119). In a first configuration (123), the actuation mechanism opens the first passage (113) and closes the second passage (115). In the second configuration (125), the actuation mechanism closes the first passage (113) and opens the second passage (115).

Description

"A toilet system"Technical Field

[0001] The present disclosure relates to a toilet system. This has particular application to a toilet flush system for a portable toilet, such as those found in caravans, recreational vehicles, motorhomes, and other vehicles, as well as marine vessels such as boats and yachts. In other examples, the toilet may be used in non-vehicle applications such as households, or as temporary portable toilets in worksites, public events, parks, campsites etc.Background

[0002] Toilet require a mechanism to dispose of human waste from the toilet bowl. In some known systems, this can include an S-trap of P-trap whereby water from flushing creates a gas trap to prevent odours from the sewer or septic tank from travelling upstream. However in portable toilet applications, it may be desirable to use less water. Furthermore, where the toilet may be mobile (such as in a trailer or vehicle), water may undesirable slosh around if a conventional S-trap or P-trap system is used.

[0003] In some known systems, a simple flap may be used between the toilet and the waste collection system (such as a cassette or black tank). An issue with such flaps is that during use (and with a person at the toilet), opening of the flap can enable some odours to pass back making it unpleasant for the user.

[0004] Any discussion of documents, acts, materials, devices, articles or the like which has been included in the present specification is not to be taken as an admission that any or all of these matters form part of the prior art base or were common general knowledge in the field relevant to the present disclosure as it existed before the priority date of each of the appended claims.

[0005] Throughout this specification the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.Summary

[0006] A toilet system comprising:- a toilet bowl body defining a first cavity configured to receive waste;- a second body section defining a second cavity downstream of the first cavity;- a first barrier selectively configurable to open or close a first passage between the first cavity and the second cavity;- a second barrier selectively configurable to open or close a second passage between the second cavity and a downstream waste collection system; and- an actuation mechanism to actuate the first barrier and the second barrier, wherein in a first configuration, the actuation mechanism is configured to operate the first barrier to open the first passage to enable waste to pass from the first cavity to the second cavity and the actuation mechanism is configured to close the second passage with the second barrier; and wherein in a second configuration, the actuation mechanism is configured to operate the second barrier to open the second passage to enable waste to pass from the second cavity to the waste collection system and the actuation mechanism is configured to close the first passage with the first barrier.

[0007] The first barrier may comprise a first sliding door and the second barrier may comprise a second sliding door.

[0008] In some examples, the toilet system further comprises: a lid operable to a closed position to cover at least part of the toilet bowl body and operable to an open position to expose at least part of the toilet bowl body, wherein the lid is in communication with the actuation mechanism, and wherein when the lid is in the open position, the actuation mechanism operates to the first configuration; and wherein when the lid is in the closed position the actuation mechanism operates to the second configuration.

[0009] In some examples of the toilet system, the first sliding door is configured to slide substantially horizontally to open and close the first passage, and wherein the first cavity is substantially above the first sliding door.

[0010] In some examples of the toilet system, the second sliding door is configured to slide substantially horizontally to open and close the second passage, and wherein the second cavity is substantially above the second sliding door.

[0011] In some examples of the toilet system, the first sliding door is configured to slide in opposite directions to the second sliding door when transitioning between the first configuration and the second configuration.

[0012] In some alternative examples, the first sliding door is configured to slide in the same direction as the second sliding door when transitioning between the first configuration and the second configuration. In some further examples, the first sliding door and the second sliding door are mechanically coupled to each other.

[0013] In some examples of the toilet system, the first barrier is associated with a first rack and the second barrier is associated with a second rack, wherein the actuation mechanism comprises at least one gear to mesh with the first rack and second rack, and wherein selective rotation of the at least one gear in a first direction configures the first and second barrier towards the first configuration, and wherein selective rotation of the at least one gear in a second direction configures the first and second barrier towards the second configuration.

[0014] In some examples of the toilet system, the at least one gear of the actuation mechanism is in communication with at least one other gear associated with the lid.

[0015] In some examples, the toilet system further comprises one or more intermediate gears and / or intermediate racks to provide mechanical communication between the at least one gear and the at least one other gear associated with the lid.

[0016] In some examples of the toilet system, the lid is in mechanical communication with the actuation mechanism.

[0017] In some examples of the toilet system, the lid is communication with the actuation mechanism with a system of at least one gear, linkage, pulley, or cable.

[0018] In some examples of the toilet system, the lid is in communication with the actuation mechanism with electrical, electronic, or wireless communication systems.

[0019] In some examples of the toilet system, the claims further comprise a partial flush actuator configured to trigger at least a partial flush of liquid into the toilet bowl body and / or second body section during a transition between the first configuration and the second configuration.

[0020] In some examples of the toilet system, the partial flush actuator is in communication with at least one of the lid or the actuation mechanism.

[0021] In some examples, the toilet system further comprises:- at least one first flush outlet configured to dispense flushing liquid into the toilet bowl body; and- at least one second flush outlet configured to dispense flushing liquid into the second body section.

[0022] In some examples of the toilet system, the downstream waste collection system comprises one or more of:- a selectively removable cassette tank to store waste;- a black water tank to store waste;- a composting container; and- a macerator to break up the waste to be collected at a waste tank.

[0023] In some examples of the toilet system, the second cavity is substantially below the first cavity.

[0024] There is also disclosed a method of operating a toilet system comprising:- opening a first passage between a toilet bowl and an intermediate container downstream of the toilet bowl to enable waste to pass from the toilet bowl to the intermediate container;- closing a second passage between the intermediate container and a waste collection system downstream of the intermediate container to enable waste to temporarily collect in the intermediate container and to inhibit fluid movement upstream from the waste collection system;- the method subsequently comprising:- closing the first passage between the toilet bowl and the intermediate container to inhibit fluid movement upstream from the waste collection system to the toilet bowl; and- opening the second passage between the intermediate container and the waste collection system to enable waste in the intermediate container to pass to the waste collection system.

[0025] In some examples, the method further comprises:- closing a lid of the toilet system to cover at least part of the toilet bowl, wherein the lid is in communication with a first barrier operable to open and close the first passage and a second barrier operable to open and close the second passage, and wherein the steps of closing the first passage and opening the second passage is in response to closing the lid.

[0026] In some examples the first passage is opened and closed with a first sliding door and the second passage is opened and closed with a second sliding door.

[0027] In some examples, the method further comprises: opening the lid of the toilet system to expose at least part of the toilet bowl, wherein the steps of opening the first passage and closing the second passage is response to opening the lid.

[0028] In some examples of the method, wherein in response to: opening the lid; and / or closing the lid, the method further comprises:- flushing at least a partial flush of liquid into the toilet bowl and / or intermediate container.

[0029] There is disclosed a toilet system comprising:- a toilet bowl body defining a first cavity configured to receive waste;- a selectively rotatable intermediate container with a base and an intermediate opening leading to a second cavity, wherein the second cavity is downstream of the first cavity;- a first passage between the first cavity and the second cavity;- a second passage between the second cavity and a downstream waste collection system; and- an actuation mechanism to selectively rotate the intermediate container, wherein in a first configuration, the actuation mechanism is configured to operate the intermediate container to align the intermediate opening to the first passage and enable waste to pass from the first cavity to the second cavity and wherein the actuation mechanism is configured to align the base to close the second passage; and wherein in a second configuration, the actuation mechanism is configured to operate the intermediate container to align the intermediate opening to the second passage and enablewaste to pass from the second cavity to the waste collection system and the actuation mechanism is configured to the base to close the first passage.

[0030] In some examples the toilet system, further comprises: a lid operable to a closed position to cover at least part of the toilet bowl body and operable to an open position to expose at least part of the toilet bowl body, wherein the lid is in communication with the actuation mechanism, and wherein when the lid is in the open position, the actuation mechanism operates to the first configuration; and wherein when the lid is in the closed position the actuation mechanism operates to the second configuration.

[0031] In some examples, the toilet system further comprises a partial flush actuator configured to trigger at least a partial flush of liquid into the toilet bowl body and / or second body section during a transition between the first configuration and the second configuration.

[0032] In some examples of the toilet system, the partial flush actuator is in communication with at least one of the lid or the actuation mechanism.

[0033] In some examples of the toilet system, the downstream waste collection system comprises one or more of;- a selectively removable cassette tank to store waste;- a black water tank to store waste;- a composting container; and- a macerator to break up the waste to be collected at a waste tank.Brief Description of Drawings

[0034] Fig. 1 illustrates a cutaway of a toilet system in a second configuration and with the lid closed;

[0035] Fig. 2 illustrates the toilet system of Fig. 1 in between a first configuration and the second configuration;

[0036] Fig. 3 illustrates the toilet system of Fig. 1 in the first configuration with the lid open;

[0037] Fig. 4 illustrates a flow diagram of a method of operating a toilet system;

[0038] Fig. 5 is a rear perspective view of the toilet system of Fig. 1;

[0039] Fig. 6 is a cutaway rear perspective view of the toilet system of Fig. 5 in a second configuration;

[0040] Fig. 7 is a cutaway rear perspective view of the toilet system of Fig. 6 in a first configuration;

[0041] Fig. 8 is a cutaway rear perspective view of the toilet system with the cassette tank 175 partially removed.

[0042] Fig. 9 is a perspective view of a protrusion of the partial flush actuator on a rack to initiate partial flush;

[0043] Fig. 10 is a cutaway rear perspective view of another variation of the toilet system showing the conduits and tubes from the water tank;

[0044] Fig. 11 is a rear view of the toilet system of Fig. 10;

[0045] Fig. 12 is a representation of the conduits and tubes of Fig. 10;

[0046] Fig. 13 is a close up of a flush outlet from the tank of Fig. 10;

[0047] Fig. 14 is a close up view of the conduits and a second body section;

[0048] Fig. 15 is an alternative view of the conduits and second body section of Fig. 14;

[0049] Fig. 16 is a cutaway perspective view of another variation of the toilet system in a first configuration;

[0050] Fig. 17 is a cutaway perspective view of the toilet system of Fig. 16 in a second configuration; and

[0051] Fig. 18 illustrates another example of the toilet system in a second configuration;

[0052] Fig. 19 illustrates the toilet system of Fig. 18 in a first configuration; and

[0053] Fig. 20 illustrates sliding doors of the toilet system of Fig. 18.Description of Embodiments

[0054] Overview

[0055] Fig. 1 illustrates a toilet system 101 that includes a toilet bowl body 103 defining a first cavity 107 to receive waste 107 to be subsequently collected at a downstream waste collection system 120. A second body section 109 defines a second cavity 111 that is downstream of the first cavity 105 and upstream of the waste collection system 120.

[0056] A first barrier 117 is selectively configurable to open or close a first passage 113 between the first cavity 105 and the second cavity 111. In this example, the first barrier 117 includes a first sliding door 141 that is configured to slide substantially horizontally.

[0057] A second barrier 119 is selectively configurable to open or close a second passage 115 between the second cavity 111 and the downstream waste collection system 120.

[0058] An actuation mechanism 121 is configured to actuate the first barrier 117 and the second barrier 119. The actuation mechanism 121 can configure the toilet system 101 with at least two configurations.

[0059] In a first configuration 123 (as illustrated in Fig. 3) the toilet system 101 is configured to enable a user to provide waste 107 to the toilet. This includes opening 210 the first passage 113 and closing 220 the second passage 115. To achieve this the actuation mechanism 112 is configured to operate to the first barrier 117 to open the first passage 113 to enable waste 107 to pass from the first cavity 105 to the second cavity 111. The actuation mechanism 121 in this configuration is configured to close the second passage 115 with thesecond barrier 119. Thus waste is collected at the second cavity 111. At the same time, gasses and odours from the waste collection system 120 is prevented from moving upstream by the second barrier 119.

[0060] After the user has finished using the toilet, the actuation mechanism 121 can be actuated to the second configuration 125 to remove the waste 107 (as illustrated in Fig. 1). This includes closing 230 the first passage 113 and opening the second passage 115. To achieve this the actuation mechanism is configured to operate the second barrier 119 to open the second passage so that the waste 107 can pass from the second cavity 112 to the downstream waste collection system 120. The actuation mechanism 121 also operates to close the first passage 115 with the first barrier 117 to prevent gasses moving upstream from the waste collection system 120.

[0061] In some examples, operation of the actuation mechanism 121 is linked with the lid (i.e. toilet seat) so that opening and closing of the lid operates the actuation mechanism in the respective first and second configurations. This advantageously configures the toilet without the user having to take steps in addition to normal use of the toilet.

[0062] A detailed example of an example of the toilet system 101 will now be described.

[0063] Toilet bowl body

[0064] The toilet bowl body 103 can be formed with a similar bowl-like structure as conventional toilets so that the toilet system 101 appears familiar to use for users.

[0065] The toilet bowl body 103 has a cavity that funnels water and waste towards the first passage 113. At the upper rim 130 of the toilet bowl body 103, flushing fluid (such as water) can selectively introduced to aid flushing of the waste 107. In some examples, flushing liquid is introduced around the upper perimeter of the rim 130 to enable at least a majority of the surfaces of the bowl to be wetted during flushing.

[0066] A hinged toilet seat 132 may also be provided at the upper rim 130 to enable a user to sit at the toilet. A lid 131 may also be hinged to cover the top of the toilet bowl body 103 when the toilet is not in use.

[0067] Second body section

[0068] The second body section 109 is configured between the first passage 113 and the second passage 115. In the illustrated example, the second body section is located substantially vertically below the first cavity 105 of the toilet bowl body 103. At least part of the downstream waste collection system 120 is, in turn, located vertically below the second body section 109. This enables gravity to assist passage of waste downwards (and downstream) from the first cavity 105, to the second cavity 111, and subsequently to the waste collection system 120.

[0069] The second body section 109 has a second cavity 111 that is configured to have a volume to hold expected amounts of waste. In the illustrated example, the second cavity has a rectangular prism shape. However, it is to be appreciated that other forms can be used. For example, the cross-section could be circular, oval, stadium, etc, to form a cylinder-like cavity. Curved walls in a cylinder configuration may be useful to reduce a corner where waste can be trapped.

[0070] As discussed herein, the second body section 109 is configurable to two main configurations. The first configuration 123 where the first passage 113 is open and the second passage 115 is closed. The second configuration 125 where the first passage 113 is closed and the second passage 115 is open. This is effected, at least in part, by the first and second barriers 117, 119 discussed below.

[0071] First barrier

[0072] The first barrier 117 operates to open and close the first passage 113 between the first and second cavity 105, 111. In the illustrated example, the first barrier is a first sliding door 141 that is configured to slide to open and close the first passage 113. As the first cavity 105 is substantially above the first sliding door 141, when the first sliding door is configured to open the first passage 113, the waste 107 will drop to the second cavity 105.

[0073] At the perimeter of the first passage 113, seals are provided to prevent waste or flushing fluids from escaping past apertures for the sliding doors 141. In some examples, this can include rubber (or rubber-like) seals 140 that deal against gaps as well as sealing againstthe sliding door 141. In some examples, the seals 140 may, in part, act as wipes or wiper-like elements that scrape off waste as the sliding doors 141 are retracted to open the first passage 113.

[0074] In some examples, the sliding doors 141 operate to move in a substantially horizontal direction. It is to be appreciated that in other examples, the sliding doors 141 may operate at a slight slope so that waste and fluid is biased towards one direction (or side).

[0075] The first barrier 117 may be actuated mechanically by the actuation mechanism. In the illustrated example, first barrier 117 is associated with a first rack 151 that meshes with respective gears to operate the first barrier 117. Thus include the first rack 151 that extends along the substantially planar door 141, whereby the length of the first rack 151 is parallel to the axis of movement of the first barrier 117.

[0076] Second barrier

[0077] The second barrier 119 operates to open and close the second passage 115 between the second cavity 111 and the downstream waste collection system 120. This can include similar features as the first barrier 117, such as a second sliding door 143 that is configured to slide to open and close the second passage 115. Seals may also be provided to prevent movement of waste, fluids, or gasses and odours when the second barrier is closed.

[0078] The second cavity I l l is substantially above the second sliding door 141 so that waste 107 can be assisted by gravity to exit through the second passage 115 when the sliding door 141 is open.

[0079] In some examples, the second sliding door 143 is configured to slide substantially horizontally. In further examples, the first sliding door 141 slides in opposite directions to the second sliding door 143 when transitioning between the first configuration and the second configuration 125.

[0080] The second sliding door 143 may be associated with a corresponding second rack 153. As shown in the illustrated embodiment, the second rack 153 opposed the first rack 151 such that a gear 155 in between meshes with both the first rack 151 and second rack 153 to enable sliding of the sliding doors 141, 143 in opposite directions.

[0081] Actuation mechanism

[0082] The actuation mechanism 121 selectively operates the first and second barriers 117, 119 to open and close the respective first and second passages 113, 115. This include operating to a first configuration with an open first passage 113 and a closed second passage so that waste can temporarily collect at the second cavity 121 whilst blocking smells from coming up via the second passage 115. The actuation mechanism 121 can subsequently operate to the second configuration where the second passage 115 is open for the waste to pass to the waste collection system 120 whilst the first passage 115 is closed to prevent smells from coming up via the first passage 113.

[0083] In some examples the actuation mechanism simultaneously operates the first and second barriers 117, 119 between the first configuration 123 and the second configuration 125. For example, simultaneously operating the first barrier 117 to open the first passage 113 and operating the second barrier 119 to close the second passage 115. In other examples, the actuation mechanism 121 may operate in sequence, or in overlap (such as first operating the first barrier 117 and subsequently operating the second barrier).

[0084] In the examples of Figs. 1 to 3, the actuation mechanism 121 includes a mechanically coupled system to coordinate movement of the barriers 117, 119. This can include the at least one gear 155 that meshes between the first rack 151 and the second rack 153. Thus when the gear 155 is selectively rotated in a first direction 161 (as illustrated in Fig. 2), this configures the barriers 117, 119 towards the first configuration 123 (as illustrated in Fig. 3). When the gear 155 is selectively rotating in an opposite second direction 163, this configures the barriers 117, 119 towards the second configuration 125 (as illustrated in Fig. 1).

[0085] In some examples, the actuation mechanism 121 is in communication 137 with at least one other gear 165 associated with the lid 131 (toilet seat). This communication 137 can include direct mechanical link (such as the gears 155, 165 meshed with one another). In other examples, this can include mechanical coupling such as one or more intermediate gears 167, and / or intermediate racks 169 to provide mechanical communication between the at least one gear 155 and the at least one other gear 165 associated with the lid 131.

[0086] In the example of Fig. 1, an intermediate gear 167 meshes with teeth associated with the first gear 155. In turn, a smaller pinion associated with the intermediate gear 167 meshes with a vertically orientated intermediate rack 169. The vertically orientated intermediate rack 169 is thus configured to slide up and down vertically when transitioning between the first and second configurations 123, 125.

[0087] The vertically orientated intermediate rack 169 is also meshed with the other gear 165 associated with the lid 131. Thus manual movement of the lid 131 results in operation of the actuation mechanism 121 on the first and second barriers 117, 119. Generally, when the lid 131 is closed, the system is in a second configuration and when the lid 131 is open, the system is in the first configuration. This will be discussed in further details below.

[0088] It is to be appreciated that variations of this concept can include other mechanical means of communication between the lid 131 and the actuation mechanism 121. In some examples, this can include a system that includes one or more of linkages, push (and pull) rods, torsion bars, pulleys, cable, chains, gear, etc. This can include combinations of such mechanical devices such as a chain meshed with gears. This may also include mechanical actuators to assist movement such as springs and weights. The example of Figs. 18 to 20 below illustrates a linkage arm 44 as part of the actuation mechanism to move the barriers 117, 119.

[0089] In other examples, the lid 131 may be in communication 137 with the actuation mechanism 121 by non-mechanical means, such as electrical, electronic, or wireless communication systems. In some examples, the actuation mechanism 121 may include powered actuators, such as motors, and servos, to selectively operate the first and second barriers 117, 119. This may include pneumatic or hydraulic actuators. This may include using a microcontroller to control operation of such actuators in response to sensor or control inputs.

[0090] In some alternative examples, operation of the action mechanism 121 may be decoupled (i.e. separate) from operation of the lid 131. Thus the system may include a lever, button, or other user operable control interface to enable a user to selectively change between the first configuration and the second configuration.

[0091] Lid

[0092] The lid 131 can provide a cover over the first cavity 105. The lid 131 is typically hinged so that in the closed configuration (when it is substantially horizontal), the first cavity 105 is closed 133. The lid 131 can also function as a seat if the user is not using the toilet. When in use, the lid 131 is lifted and rotated to expose the first cavity 105. The lid is typically opened 135 to an obtuse angle past the vertical so that the seat does not fall back to the closed position.

[0093] In the illustrated example, the hinge system is associated with the other gear 165 so that hinged movement of the lid 131 directly rotates the gear 165 (and in turn operating the actuation mechanism 121.

[0094] In this example, the lid 131 and actuation system 121 are linked so that when the lid 131 is in the open position 135, the actuation mechanism 121 operates to the first configuration 123. This first configuration corresponds to allowing the user to use the toilet and for the waste to be collected (temporarily) at the second cavity 111. When the lid 131 is operated to the closed position 133, the actuation mechanism 121 operates to the second configuration 125 to enable waste to pass through to the waste collection system 120.

[0095] Flushing liquid

[0096] The toilet system 101 may be flushed, after use, with a flushing liquid 173. Typically, this includes water, but can include water with additives. This can include chemical additives for hygiene reasons and / or chemicals to assist in biodegradation of the waste product. In some examples, the flushing liquid may include “grey water”, such as water previously used from a shower or sink.

[0097] In the illustrated example, a fluid tank 3 is temporarily stores the flushing liquid 174. A user interface 91 may include one or more buttons operable by a user to enable selective flushing of the toilet system. The user interface 91 may include a "half flush" and a "full flush" options that correspond to operation modes with different amounts of water being used to flush the toilet. In some examples, the user interface 91 may have two physical buttons, each corresponding to the each of the operation modes. In other examples, the user interface91 may include a single buton and operation of the different modes depends on the length of time the user interacts with the user interface 91 (e.g. a brief press versus an extended press of the button). In other examples, the user interface may have two stages where a light press operates one mode and a full depression (and with additional force) operates in another mode.

[0098] In some examples, the user interface 91 is mechanically linked to one or more outlet valves 73, whereby operation of the outlet valve enable flushing liquid 173 to be released from the fluid 3 and downstream to the upper rim 130 of the first cavity 105 of the toilet bowl body 103.

[0099] In some examples the user interface is an electrical, electronic, or electromechanical switch. This can include a switch that sends an electrical or electronic signal to the pump controller and / or pump.

[0100] The pump controller can include an electrical and / or electronic circuit to control operation of the pump. In a basic example, on receiving a signal from the user interface to selectively flush the toilet system, the pump controller can in turn provide a pump operation signal the pump to pump liquid from a tank (such as a grey water tank or clear water tank) to the first cavity 105. In some examples, the pump controller is configured with a timing functions to control a length of time (or corresponding volume of liquid) that should be pumped into the liquid tank 3 and / or toilet bowl body 103.

[0101] Rinsing with flushing liquid

[0102] In some examples, it is desirable “pre-rinse” the toilet system 101 with flushing liquid 173 before use. By pre-rinsing the toilet bowl body 103 and the second body section 109, this wets the components to discourage waste 107 from adhering or lingering components of the toilet system 101. This pre-rinse may also be advantageous to flush away residual waste in the toilet system. The pre-rinse may also enable hygienic additives (and scents) to be introduced to the toilet system that can increase hygiene and improve user experience. In some examples, the toilet system 101 also has a “post-rinse” after use.

[0103] Thus the toilet system 101 may include a partial flush actuator 171 configured to trigger at least a partial flush of liquid 173 into the toilet bowl body 103. In some examples,the partial flush actuator is triggered during a transition between the first configuration 123 and the second configuration 125.

[0104] In some examples, the partial flush actuator 171 is triggered when transitioning from the first configuration 123 to the second configuration 125 (as a pre-rinse). In further examples, the partial flush actuator is also triggered when transitioning from the second configuration 125 to the first configuration 123 (as a post-rinse). In some example, the partial flush actuator is in communication with the actuation mechanism 121 to enable the partial flush is performed without additional user input.

[0105] In the example illustrated in Fig. 9, the partial flush actuator 171 includes, at least in part, a protrusion at the vertically orientated intermediate rack 169. As the rack 169 moves up and down during transition between the first and second configurations 123, 125 (and also to the mechanically linked lid 131 between closed and open configurations), the protrusion also moves up and down. A sensor, such as a microswitch, photo-electric sensor, etc, senses movement of the protrusion that, in turn, triggers a valve 73 and / or pump to release a partial flush of liquid 173 to the toilet bowl body 103.

[0106] It is to be appreciated that in other examples, the partial flush actuator 171 may include a mechanically linked system to operate the valve 73 to release the partial flush of liquid.

[0107] In some examples, the partial flush actuator 171 is in communication with the lid 131. Thus when the lid 131 is moved between the open and closed positions, pre-rinse and / or post rinse occurs. That is, operation of the partial flush actuator is linked to operation of the lid 131 and independent of the actuation mechanism). In such examples, a microswitch may be used to sense the position of the lid 131 and / or movement of the lid 131 to trigger the prerinse and / or post-rinse.

[0108] In alternative examples, the partial flush actuator 171 may be triggered by additional events. For example, a controller may trigger partial flushes at scheduled time intervals, time of day, or interval of time between use.

[0109] In some examples, the toilet system 101 may have additional sensor and a controller to determine that a period of time has elapsed since the lid 131 was opened and closed without a user operating the user interface to flush the toilet. In response, the controller actuates a flush. This serves as an automatic flush in case a user forgets to flush the toilet. This may be useful to keep the toilet system 101 fresh and hygienic.

[0110] Flushing liquid outlets

[0111] In one variation, as illustrated in Figs. 10 to 15, multiple flushing liquid outlets 191, 193 are configured to provide flushing liquid 173 to the toilet system. This can include at least one first flush outlet 191 configured to dispense flushing liquid 173 into the toilet bowl body 103, such as at the upper rim 130. This first flush outlet 191 can include introduction of the liquid 173 substantially around the perimeter of the upper rim 130 as common in conventional toilets. Referring to Fig. 12, the first flush outlet 191 may include, at least in part, tubing that substantially forms a loop portion, wherein a plurality of apertures are provide at the loop portion to enable flushing liquid 173 to be dispensed along walls of the bowl body 103.

[0112] In addition, the toilet system 101 can be configured to have at least one second flush outlet 193 configured to dispense flushing liquid 173 into the second body section 109 (as illustrated in Figs. 14 and 15). The second flush outlet 193 may also include a loop portion with apertures 194 to enable liquid to be dispensed around the walls of the second body section 109.

[0113] Referring to Figs. 10 to 12, the valve 73 is selectively operable to supply flushing liquid 73 to tubes 195, 196 that, in turn, supply flushing liquid to the respective first and second flush outlets 191, 193. In this example, a Y connection is provided downstream of the valve 73 to split supply of flushing liquid to the respective tubes 195, 196.

[0114] Scent conduit

[0115] An air scent dispenser 197 produces scents that pass through scent conduit 198. The Scent conduit 198 leads to scent outlet 199 that is in fluid communication with the second cavity 111.

[0116] The air scent dispenser 197 generates scents, such as from scented chemicals. In some examples, this can include an additive that is activated by dissolution with water in the fluid tank 3. This can include additives in the form of a gel or a solid (as a monolithic block, or granulated such as beads, pellets, etc.) that are held in a container (such as a cartridge) inside the fluid tank 3. As illustrated in Fig. 10, the air scent dispenser 197 may be configured at the upper region of the tank 3 so that as water fills the tank 3, some water wets the additive in the cartridge to generate scented vapours / gasses that, in turn pass through the scent conduit 198 to the second cavity 111.

[0117] This can provide an improved user experience for users of the toilet. In some examples, the vapours may also include additives with cleaning or disinfectant properties.

[0118] Waste collection system

[0119] The waste collection system 120 is configured to receive the waste 107 from the toilet system 101. In some examples, the waste collection system 120 is configured to store, at least temporarily, the waste 107. In other examples, the waste collection system 120 is configured to receive and, in turn, send the waste to be stored and / or processed downstream, such as a separate waste storage container, or public sewerage system. In some examples, the waste collection system 120 is configured to at least partially process the waste 107.

[0120] Examples of waste collection systems can include one or more of:• a selectively removable cassette tank 175 to store waste;• a black water tank to store waste;• a composting container;• a septic tank system; and• a macerator 185 to break up the waste to be collected at a waste tank or sewerage system.

[0121] An example of waste collection system 120 in the form of a removable cassette tank 175 is illustrated in Figs. 6 to 8. The removable cassette tank 175 includes an aperture 177 that leads to a storage cavity 179 to store the waste 107. A cover or cap 181 is provided to selectively close the aperture 177 so that the removable cassette tank 175 can be substantially sealed when handling and transporting the removable cassette tank 175.

[0122] The removable cassette tank 175 can be configured so that in use, the opened aperture 177 is substantially below the second passage 115. This enables a short (or minimal) distance for waste 107 to travel between the second cavity to the storage cavity 179. This also enables gravity to assist the movement of the waste 107 to the storage cavity 179,

[0123] Referring to Fig. 8, a protruding lip 183 is provided at the toilet system 101 so that as the removable cassette tank 175 is inserted, the protruding lip 183 slides the cover 181 to an open configuration to open the aperture 177. In some examples, the cover 181 is spring- loaded (or biased by other means) so that the cover 181 closes the aperture 177 as the cassette tank 175 is withdrawn from the in use position at the toilet system 101. It is to be appreciated that alternative cover or cap mechanisms can be used.

[0124] In the illustrated example, the removable cassette tank 175 also includes a macerator 185. The macerator 185 is configured to break up the waste 107 so that the waste 107 can more evenly settle inside the removable cassette tank 175. In this example, the macerator 185 includes an auger-like element extending inside the tank 175. On rotation of the macerator 185, the auger-like projections physically break clumps of waste 107 in the tank.

[0125] The illustrated example shows the macerator that extends diagonally down and across the tank (and forms an acute angle upwards from the base of the tank). This can enable a compact configuration of the macerator whilst providing reasonable reach for the auger to break down waste. A drive system 187 is located at an upper portion to provide rotational drive to the macerator 185. In some examples, the drive system 187 includes an electric motor. In other examples, the drive system 187 may be mechanically actuated (such as a via a crank).

[0126] In other examples, the waste collection system 120 may include a macerator and / or pump system to send the waste downstream to a black water tank, or septic tank. In marineapplications, the waste collection system 120 may send the macerated waste 107 overboard. In yet other examples, the macerator waste may be pumped to a local or town sewerage system.

[0127] Method

[0128] There is also disclosed a method 200 (as illustrated in Fig. 4) of operating the toilet system 101. The method 200 includes initially:- opening 210 a first passage 113 between a toilet bowl 104 (such as toilet bowl body 103) and an intermediate container 110 (such as second body section 109) downstream of the toilet bowl 104 to enable waste 107 to pass from the toilet bowl 104 to the intermediate container 110; and- closing 220 a second passage 115 between the intermediate container 110 and a waste collection system 120 downstream of the intermediate container 110 to enable waste 107 to temporarily collect in the intermediate container 110 and to inhibit fluid movement upstream from the waste collection system 120.

[0129] In some examples, opening 210 of the first passage 113 and closing 220 of the second passage 115 corresponds to operating to the first configuration 123 described in the above example. Subsequently the method 200 is configured to dispose of the waste 107. This can include the subsequent steps of:- closing 230 the first passage 113 between the toilet bowl 104 and the intermediate container 110 to inhibit fluid movement upstream from the waste collection system 120 to the toilet bowl 104; and- opening 240 the second passage 115 between the intermediate container 110 and the waste collection system 120 to enable waste 107 in the intermediate container 110 to pass to the waste collection system 120.

[0130] In some examples, closing 230 of the first passage 113 and opening 240 of the second passage 115 corresponds to operating to the second configuration 125 described above.

[0131] Further examples include linking, or at least partially linking, the steps above with movement of the lid 131 (e.g. toilet seat) that is used to selective close or expose the toilet bowl 104. As lifting and closing of the lid 131 are typically user operated steps in a conventional toilet, linking the above steps 210 to 240 with such actions can simplify the user experience.

[0132] Therefore in some examples the lid 131 is in communication with a first barrier 117 that is operable to open and close the first passage 113. The lid 131 is also in communication with a second barrier 119 operable to open and close the second passage 115. The communication can be a mechanical, electrical, or electromechanical system that link movement between the lid 131 and the barriers 117, 119.

[0133] As illustrated in Fig. 4, in some examples, the steps of closing 230 the first passage 113 and opening 240 the second passage 115 is in response to closing 225 the lid 131. The steps of opening 210 the first passage 113 and closing 220 the second passage 115 is in response to opening 205 the lid 131. The user may manually open and close the lid 131 by hand, and the toilet system 101 in turn operates to open and close the passages 113, 115 without the user having to operate other controls.

[0134] In further examples, flushing 245 at least a partial flush of liquid into the toilet bowl 104 and / or the intermediate container (110) is also initiated in response to opening 205 and / or closing 225 of the lid 131. This can “wet” the toilet bowl 104 and intermediate container 110 to facilitate improved movement of waste 107 through the toilet system 101. In the case of additives in the flushing liquid, this can also provide a hygienic disinfectant to pass through the toilet system 101. This can also provide some additional scent, from additives in the flushing fluid, to improve user comfort.

[0135] Materials

[0136] The toilet system 101 and components may be manufactured with water resistant and / or stan resistant materials suitable for bathroom use.

[0137] In some examples, the toilet system and components thereof may be constructed with polymers or composites containing one or more of:• Polytetrafluoroethylene (PTFE) - Fluoropolymer (thermoplastic polymer), commercially known as teflon.• Thermoplastic copolyester (TPC), including Thermoplastic Copolyester Elastomer (TPC-E), a type of Thermo-plastic Elastomer (TPE)• Acrylonitrile Butadiene Styrene (ABS) - Thermoplastic Polymer• Polyamide (PA) - Thermoplastic Polymer, including nylon plastic• Polypropylene (PP) , including Thermoplastic Polymer (Polyolefin family)• Polyvinyl chloride (PVC) - thermoplastic polymer

[0138] In some examples, one or more components of the toilet system are made of fibre reinforced plastic composites including, but not limited to:• Glass fibre reinforced polymer (GFRP), commonly known as fibreglass with glass fibres embedded in a resin. This can include a thermosetting or thermoplastic resin.• Carbon fibre reinforced polymer (CFRP). This can include carbon fibres reinforcing a thermosetting epoxy resin.

[0139] It is to be appreciated that in some examples, the fibre reinforced plastics can include a mix of different fibres such a carbon fibre and aramid fibres (such as Kevlar) in an epoxy resin to blend different material properties.

[0140] In other examples, one or more components of the toilet system are made with one or more of:• Ceramics - Vitreous Ceramic Materials, typically based on Silica (SiO2), Alumina (AI2O3), or other inorganic non-metallic compositions.• Porcelain: Vitreous Porcelain Ceramic, primarily composed of Kaolinite (A12Si2O5(OH)4), Feldspar, Quartz (SiO2)

[0141] In some examples, one o more components of the toilet system are made with metal or metal alloys. This can include one or more of:• Stainless steel. This can include Stainless Steel (Marine Grade 316): Austenitic Stainless Steel (AISI 316 or SAE 316) - Alloy primarily of Iron (Fe), Chromium (Cr), Nickel (Ni), and Molybdenum (Mo)• Aluminium alloys (Marine Grade): Aluminium Alloy (commonly AA 5OOO-series or AA 6000-series alloys) - primarily Aluminium (Al), Magnesium (Mg), Silicon (Si)• Brass: Copper-Zinc Alloy (typically CuZn alloy), corrosion-resistant metal alloy• Copper: Pure Metallic Copper (Cu), highly corrosion-resistant, antimicrobial metal.

[0142] In some examples, one or more components may have a PTFE (i.e. Teflon) coating to reduce friction and / or provide a protective coating.

[0143] In some examples, some of the components may be made of rubber or rubber-like materials. This can include silicone such as polysiloxane elastomer (chemically a polymerized siloxane).

[0144] Advantages

[0145] The toilet system 101 may advantageously prevent, or reduce, smells and gases in the waste collection system 120 from passing backwards up to the toilet bowl body 103. This can make a more pleasant environment in the toilet. This may also increase hygiene. In some examples this is achieve with having multiple barriers 117, 119 that open and close in an alternating manner, so that in either the first configuration 123 or the second configuration 125, at least one of the barriers close off a respective passage to prevent fluid flow upstream.

[0146] In some examples, operation of the lid 131 is linked to the barriers 117, 119 so that the user does not need to take additional steps when compared with conventional household toilets. That is, when the user opens the lid this causes the toilet system to be configured to receive waste from the user. Once the user has finished and closes the lid, the system is configured to send the waste downstream to the waste collection system. This contrasts to some known portable toilets where additional user operated controls are operated to pass waste to a holding tank or cassette.

[0147] In further examples, operation of the lid also triggers a flush. Similarly, this operates automatically when the lid is open and closed so that the user does not need to actively operate another user control.

[0148] Variation

[0149] Figs. 16 and 17 illustrate a variation of the toilet system 201. In this example, the second body section has, within, a selectively rotatable intermediate container 110. This intermediate container 110 is in the general form of a cylinder that has a base 212 and an intermediate opening 214 that leads into a second cavity 111.

[0150] A side wall of the second body section (not illustrated) has at least a pair of concave shaped walls between the first passage 113 and the second passage 115 that follows the contours of the cylindrical surfaces of the intermediate container 110.

[0151] This variation does not have separate first and second barriers 117, 119, but instead utilises the base 212 of the intermediate container 110 to close off the passages. Notably, this rotatable intermediate container 110 also functions selectively to expose the second cavity 111 to the first cavity 105 or the waste collection system 120.

[0152] Turning to Fig. 16, this illustrates the toilet system 201 in the first configuration 223 where the actuation system has configured the intermediate container 110 to align the intermediate opening 214 towards the first passage 113. This enables waste 107 to pass from the first cavity 105 to the second cavity 111. In this first configuration 223, the base 212 is aligned to close the second passage 115.

[0153] In this first configuration 223, the lid 131 that is in communication with the actuation mechanism 121 is open and thus the toilet is ready for use re receive human waste. Once the user finishes, the lid 131 can be closed as shown in Fig. 17.

[0154] In response, the actuation mechanism 121 rotates the intermediate container 110 to the second configuration 125 also illustrated in Fig. 17. The intermediate container 110 is inverted so that the intermediate opening 214 aligns with (i.e. faces towards) the second passage 115. This enables waste 107 in the second cavity (111) to drop towards thedownstream waste collection system 120. Furthermore, the base 212, rotated towards the first passage 115, is configured to close the first passage 115.

[0155] Thus in both configurations 223, 225, at least one of the first or second passages 113, 115 are closed to reduces, or prevent, free flow of odours and gases from moving back from the waste collection system 120 towards the first cavity.

[0156] Similar to previous examples, the toilet system 201 may be configured with a partial flush actuator 171 to provide a partial flush of liquid when the toilet system 201 transitions between the first and second configurations. This provides a wet flush to the toilet.

[0157] In some examples, the waste collection system 120 includes a macerator (that is not part of an integrated macerator inside a cassette). This can include a macerator that macerates the waste that is then collected at a waste tank (such as a black water tank). In other examples (such as marine applications) the waste may be pumped overboard.

[0158] In some examples, the waste may be stored in a waste cassette or composting container.

[0159] Variation with joined sliding doors

[0160] Figs. 18 to 20 illustrate another variation of the toilet system 301. In this example, the toilet system 301 includes a first barrier 117 in the form of a first sliding door 141 and a second barrier 119 in the form of a second sliding door 143. Whilst the example in Figs. 1 to 3 have sliding doors that move in opposite directions, the example of Figs. 18 to 20 have sliding doors 141, 143 that move together in the same direction when transitioning between the first configuration 123 (illustrated in Fig. 19) and the second configuration 125 (illustrated in Fig. 18).

[0161] Referring to Figs. 20, the first sliding door 141 and the second sliding door 143 are mechanically coupled to each other. In this particular example, the sliding doors are manufactured, or otherwise joined together (with a general C shape when viewed from the side).

[0162] The first sliding door 141 has an aperture 36 so that when the toilet system 301 is in a first configuration 123, the aperture 36 provides an opening for the first passage 113. Furthermore, the second sliding door 143 has an aperture 38 so that when the toilet system 301 is in the second configuration 125, the aperture 38 provides an opening for the second passage 115.

[0163] A mounting boss 42 is provided at the coupled first and second sliding door 141, 143 assembly. This mounting boss 42 is connected to a linkage arm / lever 44 that is part of the actuation mechanism 121. This includes a system that mechanically connects the lid 131 to the linkage arm 44 to the combined sliding doors 141, 143 so that as the lid 131 is moved the toilet system is configured between the first and second configurations.

[0164] In the example of Figs. 18 to 20, this configuration may reduce the number of moving parts compared to other examples described above.

[0165] In the above example, the sliding doors 141, 143 move in a linear fashion (i.e. along a single axis). However, it is to be appreciated that in other examples, the sliding doors may move in an non-linear fashion. This can include the sliding door moving in a rotating fashion. In some examples, the sliding door can include a disc-like member with apertures where rotation of the disc enables selective opening and closing of the door. In other examples, the sliding door may slide in a non-linear fashion such as sliding around a pivot. In yet other examples, the sliding door may be guided by tracks to move in a linear or non-linear fashion.

[0166] It will be appreciated by persons skilled in the art that numerous variations and / or modifications may be made to the above-described embodiments, without departing from the broad general scope of the present disclosure The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive.

Claims

CLAIMS:

1. A toilet system (101) comprising:- a toilet bowl body (103) defining a first cavity (105) configured to receive waste (107);- a second body section (109) defining a second cavity (111) downstream of the first cavity (105);- a first barrier (117), comprising a first sliding door (141), selectively configurable to open or close a first passage (113) between the first cavity (105) and the second cavity (i n);- a second barrier (119), comprising a second sliding door (143), selectively configurable to open or close a second passage (115) between the second cavity (111) and a downstream waste collection system (120); and- an actuation mechanism (121) to actuate the first barrier (117) and the second barrier (119), wherein in a first configuration (123), the actuation mechanism (121) is configured to operate the first barrier (117) to open the first passage (113) to enable waste (107) to pass from the first cavity (105) to the second cavity (111) and the actuation mechanism (121) is configured to close the second passage (115) with the second barrier (119); and wherein in a second configuration (125), the actuation mechanism (121) is configured to operate the second barrier (119) to open the second passage (115) to enable waste (107) to pass from the second cavity (111) to the waste collection system (120) and the actuation mechanism (121) is configured to close the first passage (115) with the first barrier (117).

2. A toilet system (101) according to claim 1 further comprising:- a lid (131) operable to a closed position (133) to cover at least part of the toilet bowl body (103) and operable to an open position (135) to expose at least part of the toilet bowl body (103), wherein the lid (131) is in communication (137) with the actuation mechanism (121), and wherein when the lid (131) is in the open position (135), the actuation mechanism (121) operates to the first configuration (123); and wherein when the lid (131) is in the closed position (133) the actuation mechanism (121) operates to the second configuration (125).

3. A toilet system (101) according to any one of the preceding claims wherein the first sliding door (141) is configured to slide substantially horizontally to open and close the first passage (113), and wherein the first cavity (105) is substantially above the first sliding door (141).

4. A toilet system (101) according to any one of the preceding claims wherein the second sliding door (143) is configured to slide substantially horizontally to open and close the second passage (115), and wherein the second cavity (111) is substantially above the second sliding door (141).

5. A toilet system (101) according to any one of the preceding claims, wherein the first sliding door (141) is configured to slide in opposite directions to the second sliding door (143) when transitioning between the first configuration (123) and the second configuration (125).

6. A toilet system (11) according to any one of claims 1 to 4, wherein the first sliding door is configured to slide in the same direction as the second sliding door when transitioning between the first configuration and the second configuration.

7. A toilet system (11) according to claim 6 wherein the first sliding door and the second sliding door are mechanically coupled to each other.

8. A toilet system (101) according to any one of the preceding claims, wherein the first barrier (117) is associated with a first rack (151) and the second barrier (119) is associated with a second rack (153), wherein the actuation mechanism (121) comprises at least one gear (155) to mesh with the first rack (151) and second rack (153), and wherein selective rotation of the at least one gear (155) in a first direction (161) configures the first and second barrier (117, 119) towards the first configuration (123), and wherein selective rotation of the at least one gear (155) in a second direction (163) configures the first and second barrier (117, 119) towards the second configuration (125).

9. A toilet system (101) according to claim 8, when dependent on claim 2, wherein the at least one gear (155) of the actuation mechanism (121) is in communication (137) with at least one other gear (165) associated with the lid (131).

10. A toilet system (101) according to claim 9, further comprising one or more intermediate gears (167) and / or intermediate racks (169) to provide mechanical communication between the at least one gear (155) and the at least one other gear (165) associated with the lid (131).

11. A toilet system (101) according to any one of claims 2 to 10 wherein the lid (131) is in mechanical communication (137) with the actuation mechanism (121).

12. A toilet system (101) according to claim 11 wherein the lid (131) is communication (137) with the actuation mechanism with a system of at least one gear, linkage, pulley, or cable.

13. A toilet system (101) according to any one of claims 2 to 7, wherein the lid (131) is in communication with the actuation mechanism (121) with electrical, electronic, or wireless communication systems.

14. A toilet system (101) according to any one of the preceding claims further comprising a partial flush actuator (171) configured to trigger at least a partial flush of liquid(173) into the toilet bowl body (103) and / or second body section (109) during a transition between the first configuration (123) and the second configuration (125).

15. A toilet system (101) according to claim 14, when dependent on claim 2, wherein the partial flush actuator (171) is in communication with at least one of the lid (131) or the actuation mechanism (121).

16. A toilet system (101) according to any one of the preceding claims further comprising:- at least one first flush outlet (191) configured to dispense flushing liquid (173) into the toilet bowl body (103); and- at least one second flush outlet (193) configured to dispense flushing liquid (173) into the second body section (109).

17. A toilet system (101) according to any one of the preceding claims wherein the downstream waste collection system (120) comprises one or more of:- a selectively removable cassette tank to store waste;- a black water tank to store waste,- a composting container; and- a macerator to break up the waste to be collected at a waste tank.

18. A toilet system (101) according to any one of the preceding claims wherein second cavity (111) is substantially below the first cavity (105).

19. A method (200) of operating a toilet system (101) comprising:- opening (210) a first passage (113) between a toilet bowl (103 / 104) and an intermediate container (109 / 110) downstream of the toilet bowl (104) to enable waste (107) topass from the toilet bowl (104) to the intermediate container (110), wherein a first sliding door (141) is opened;- closing (220) a second passage (115) between the intermediate container (110) and a waste collection system (120) downstream of the intermediate container (110) to enable waste (107) to temporarily collect in the intermediate container (110) and to inhibit fluid movement upstream from the waste collection system (120), wherein the second passage (115) is closed with a second sliding door (143);- the method subsequently comprising:- closing (230) the first passage (113) between the toilet bowl (104) and the intermediate container (110) to inhibit fluid movement upstream from the waste collection system (120) to the toilet bowl (104), wherein the first passage (113) is closed with the first sliding door (141); and- opening (240) the second passage (115) between the intermediate container (110) and the waste collection system (120) to enable waste (107) in the intermediate container(110) to pass to the waste collection system (120), wherein the second sliding door (143) is opened.

20. A method (200) according to claim 19, wherein the method further comprising:- closing (225) a lid (131) of the toilet system (101) to cover at least part of the toilet bowl (104), wherein the lid (131) is in communication with a first barrier (117) operable to open and close the first passage (113) and a second barrier (119) operable to open and close the second passage (115), and wherein the steps of closing (230) the first passage (113) and opening (240) the second passage (115) is in response to closing (225) the lid (131).

21. A method (200) according to either claim 19 or 20 further comprising:opening (205) the lid (131) of the toilet system (101) to expose at least part of the toilet bowl (104), wherein the steps of opening (210) the first passage (113) and closing (220) the second passage (115) is response to opening (205) the lid (131).

22. A method (200) according to either claim 20 or 21, wherein in response to:- opening (205) the lid (131); and / or- closing (225) the lid (131), the method further comprises:- flushing (245) at least a partial flush of liquid (173) into the toilet bowl (104) and / or intermediate container (110).

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