In many parts of the world, water usage is extremely limited and often present difficulties. One very significant health concern is providing toilet facilities in such areas. Although there have been various attempts at providing toilet facilities using minimal or no water, each of these prior attempts present their own difficulties.
The present invention addresses this issue.
The present invention provides a toilet that is operated without water or power, in a hygienic, odorless, and user-friendly manner. This device will be used in a variety of different environments, ranging from boat and RV installations, car travel, off-the-grid homes, or in hospitals as a replacement for the bedside commode.
The present invention contemplates several embodiments configurable as needed for environment of use. These embodiments include a fixed version, portable version, child version, medical version, and a style version, as set forth below.
Fixed Version. Applications of the Fixed Version embodiments include, but are not limited to, off-grid homes, RVs/boats, etc. Key features of the Fixed Version embodiments include, but are not limited to, any one or more of the following: (1) similar in size to common household toilets; (2) industrial styling to fit in modern bathrooms; (3) fixed assembly, (4) not portable; (5) large waste storage capacity; and (6) large bag refill capacity.
Portable Version. Applications of the Portable Version embodiments include, but are not limited to, car travel, camping, construction sites, emergency response, and military applications. Key features of the Portable Version embodiments include, but are not limited to, any one or more of the following: (1) portable and compact for easy packing and carrying; and (2) smaller waste storage capacity.
In one embodiment, the Portable Version includes a single use waste compartment, such as a disposable waste bag (i.e., use once and dispose waste bag immediately). In one embodiment, the Portable Version includes fold out legs or other means of standing on ground at normal toilet height, similar to camping chairs.
In another embodiment, the Portable Version unit has attachments for mounting to seat in car, possibly using anchor points in seats similar to how children's car-seats are mounted/secured.
A further embodiment of the Portable Version unit is configured to be mounted into an interlocking style toolbox for construction workers.
Another embodiment of the Portable Version is configured to be mounted in ‘cooler’ style wheely box.
Child Version. Applications of the Child Version include, but are not limited to, quick deployment during travel emergencies, and potty training. Key features of the Child Version include, but are not limited to, any one or more of the following: (1) smaller scale frame/shell; and (2) portable for travel use. In one embodiment, the Child Version unit is configured to attach to car-seat anchor points. In one embodiment, the Child Version unit is configured to utilize smaller, child sized bags.
Medical Commode/Version. Applications of the Medical Version unit include, but are not limited to hospitals/care-homes/etc. (in place of a commode), collection of stool and urine samples, and drug testing. Key features of the Medical Version unit include, but are not limited to, any one or more of the following: (1) the unit is configured to attach to either a generic commode frame or a custom frame made specifically for this application; (2) the unit is portable and/or on roller wheels; (3) the unit is configured for single use waste disposal (as described above); (4) the unit is adapted for attachment/mounting to wall, the wall having an aperture or conduit for transferring the deposited medical samples directly to medical staff on the other side of the aperture/conduit.
Style Version. Applications of the Style Version unit includes, but are not limited to, construction sites, festivals, sports events, and outdoor gatherings. Key features of the Style Version unit include, but are not limited to, any one or more of the following: (1) the unit is adapted to be integrated into port-a-loo sized toilet cubicles, such as brought in by truck; (2) the unit has large waste storage capacity and bag capacity; and (3) the bags can be fed from large central spools.
There is provided, in accordance with one embodiment of the present invention, a toilet assembly comprising a toilet seat assembly, a main chassis, a front bag guide, a drive assembly, and an opener arm assembly. The toilet seat assembly comprising a toilet seat and a toilet lid. The drive assembly comprising a flush drive mechanism and at least two drive rollers. The opener arm assembly comprising first and second opener arms configured to pivot between closed and open positions. A bag assembly is installed and utilized in connection with the toilet seat assembly. The bag assembly comprises at least one waste bag. The waste bag has first and second panels joined to one another along a common bottom edge and along a first side edge and a second side edge so that the waste bag has an interior. The first and second panels have respective top and bottom portions extending between the first side edge and the second side edge. Each of the top portions comprise an upper guide bead portion and a lower sealing portion. The upper guide portion forms a top edge defining a mouth opening into the interior. The lower sealing portion comprises an interior-facing sealing mechanism and one or more at least partially exterior-facing guide ribs. The interior-facing mechanism of the first panel is oriented to engage the interior-facing mechanism of the second panel to permanently or releasably seal the mouth. The drive assembly releasably engages the exterior-facing guide ribs to secure and suspend a first end of the waste bag proximate to the first side edge. The front bag guide releasably engages the exterior-facing guide ribs to secure and suspend a second end of the waste bag proximate to the second side edge. The first opener arm is configured to releasably engage the first panel and the second opener arm is configured to releasably engage the second panel. When the first and second opener arms pivot to the open position, the first and second panels pivot laterally to the open position, and when the first and second opener arms retract to the closed position, the first and second panels pivot medially to the closed position, which closes the waste bag prior to disposal. When the flush drive mechanism is engaged, the closed waste bag is driven through the drive rollers along said exterior-facing guide ribs, causing the interior-facing mechanism to seal the waste bag and thereafter deposit the now-sealed waste bag into a waste compartment.
In one embodiment, the toilet seat assembly further comprises a pair of actuating members coupled to the toilet lid. The actuating members are operatively associated with the first and second opener arms. When the toilet lid is opened, the actuating members engage the first and second opener arms, whereby the first and second opener arms pivot to the open position. When the toilet lid is closed, the actuating members disengage the first and second opener arms, whereby the first and second opener arms retract to the closed position. The actuating members comprise at least one of a lever-follower mechanism, a pulley mechanism, a gears and belts mechanism, an electronic motor mechanism, or a spring-loaded mechanism, or a combination thereof.
In one embodiment, the toilet seat assembly further comprises at least one actuating member causing the first and second opener arms to pivot to the open position and to retract to the closed position. The actuating member comprises at least one of a pair of horizontally pivoting arms, one or more pairs of clips on linear rails, a spring-loaded mechanism on the underside of said toilet seat, a vacuum mechanism arranged beneath said waste bag, a full-rail mechanism using positive engagement with said waste bag, or magnetic material integrated into said waste bag and one or more magnets operatively associated with said magnetic material and arranged beneath said toilet seat, or a combination thereof.
In one embodiment, the flush drive mechanism comprises at least one of a crank handle, a lever mechanism, a foot pedal, or an electronic motor with a push button, or a combination thereof.
In one embodiment, the drive assembly further comprises at least two roller shafts and at least two drive lobes, each operatively associated with a respective one of the drive rollers. In this embodiment, the flush drive mechanism is integrated with said roller shafts.
In one embodiment, the drive assembly further comprises at least two roller shafts and at least two drive lobes, each operatively associated with a respective one of the drive rollers. In this embodiment, the flush drive mechanism is mechanically linked to the roller shafts by at least one of a meshed gear, a belt, or a chain, or a combination thereof.
In one embodiment, the drive assembly further comprises a bag compressor mechanism. The bag compressor mechanism comprises at least one of soft foam cylinders, compliant flap rollers, inflated cushion rollers, or soft bristled rollers, or a combination thereof.
In one embodiment, the toilet assembly further comprises a splash rim extending vertically down into the main chassis within the mouth of the waste bag. The splash rim is actuated downwards by at least one of a spring-loaded mechanism, a linkage, or a cam, or a combination thereof.
In one embodiment, the opener arm assembly further comprises at least one bag clip and clip holder coupled to the first opener arm and configured to secure the upper guide bead portion of the first panel to the first opener arm, and at least one bag clip and clip holder coupled to the second opener arm and configured to secure the upper guide bead portion of the second panel to the second opener arm.
In one embodiment, the opener arm assembly further comprises at least one of magnets, adhesive or semi-adhesive material, or a mechanism having guided holes on a track, or a combination thereof, to secure the upper guide bead portions of the first and second panels to the first and second opener arms.
In one embodiment, the drive assembly further comprises a pin latch mechanism configured to engage an indexing hole of the waste bag.
In one embodiment, the main chassis assembly further comprises a bag refill compartment for storing a bag refill cartridge and a refill access door for accessing the bag refill compartment.
In one embodiment, the interior-facing mechanism comprises at least one of a zipper closure, an interlocking hook mechanism, a bead-in-channel setting, a reversed hooks with malleable seal in center, a contact adhesive, hook-and-loop strips, a magnetic seal, or a heat-sealing mechanism, or a combination thereof.
In one embodiment, the toilet assembly further comprises a bag joiner interlocking mechanism for coupling the second end of a last waste bag in a first bag refill cartridge to the first end of a first waste bag in a second bag refill cartridge.
In one embodiment, the bag assembly is disposed within the main chassis assembly.
In one embodiment, the waste compartment is an external waste compartment. A chute is provided, which directs the waste bag into the external waste compartment.
There is provided, in accordance with one embodiment of the present invention, a toilet assembly comprising a toilet seat assembly, a main chassis, a front bag guide, a drive assembly, and an opener arm assembly. The toilet seat assembly comprising a toilet seat and a toilet lid. The drive assembly comprising a flush drive mechanism and at least two drive rollers. The opener arm assembly comprising first and second opener arms configured to pivot between closed and open positions. A bag assembly is installed and utilized in connection with the toilet seat assembly. The bag assembly comprises at least one waste bag. The waste bag has a first outer side edge, an inner side edge, and a second outer side edge. The waste bag has a first section formed between the first outer side edge and the inner side edge. The waste bag has a second section formed between the inner side edge and the second outer side edge. The first and second sections are joined to one another along the inner side edge. The first section comprises a sealed section, a first upper guide bead portion, and one or more at least partially exterior-facing first guide ribs. The second section has first and second panels joined to one another along a common bottom edge and along the second outer side edge and the inner side edge so that the waste bag has an interior. The first and second panels have respective top and bottom portions extending between the second outer side edge and the second inner side edge. Each of the top portions comprise a second upper guide bead portion and a lower sealing portion. The upper guide portion forms a top edge defining a mouth opening into the interior. The lower sealing portion comprises an interior-facing sealing mechanism and one or more at least partially exterior-facing second guide ribs. The interior-facing mechanism of the first panel is oriented to engage the interior-facing mechanism of the second panel to permanently or releasably seal the mouth. The drive assembly releasably engages the exterior-facing first guide ribs of the first vertical section to secure and suspend a first end of the waste bag proximate to the first outer side edge. The front bag guide releasably engages the exterior-facing second guide ribs of the second vertical section to secure and suspend a second end of the waste bag proximate to the second outer side edge. The first opener arm is configured to releasably engage the first panel and the second opener arm is configured to releasably engage the second panel. When the first and second opener arms pivot to the open position, the first and second panels pivot laterally to the open position, and when the first and second opener arms retract to the closed position, the first and second panels pivot medially to the closed position, which closes the waste bag prior to disposal. When the flush drive mechanism is engaged, the closed waste bag is driven through the drive rollers along the exterior-facing first and second guide ribs, causing the interior-facing mechanism to seal the second vertical section of the waste bag and thereafter deposit the now-sealed waste bag into a waste compartment.
In one embodiment, the drive assembly further comprises a pin latch mechanism configured to engage an indexing hole of the first section of the waste bag.
In one embodiment, the waste compartment is an external waste compartment. A chute is provided, which directs the waste bag into the external waste compartment.
As generally understood by the figures, the “Pack-A-Loo” portable toilet assembly of the present invention, as detailed in
In one embodiment, installation of the very first bag refill will involve lifting toilet seat assembly 26 to gain access to the internal bowl assembly (see
With toilet seat assembly 26 lowered, the toilet lid 30 will be opened ready for use (see
In one embodiment, when the user is finished, they will close toilet lid 30 and activate the flush cycle to pull the used bag through a set of drive rollers 44 and deposit it into waste compartment 24 (see
In one embodiment, a set of soft foam rollers or other such compliant means is located below drive rollers 44 to help compress any excess air out of the bags. The user is able to empty waste compartment 24 at their discretion or depending on use case.
In one embodiment, when the first bag refill is finished the user is able to install a new refill without having to access the internal bowl elements. A quick refill access door 18 (see
In one embodiment, the zipper bag refills (i.e., zipper bag assemblies 66) are manufactured from thin flexible plastic film (e.g., bag film 76) to form a continuous horizontal series of bags (see
In one embodiment, the bags are vertically divided into individual bag sections during manufacture (see
In one embodiment, the zipper component of the bag is made up of two mating parts, each consisting of a zipper, one upper and one lower set of guide features. In
In one embodiment, the lower guide features are used to support the bag in the bag guides and to insert/install into drive rollers 44. The upper guide features are used to guide the bag through opener arms 60. The sealing between bag sections stops at the zipper, with the portion above the zipper un-sealed to allow the upper guide features to be continuous. These features include unique mating features that are required for the toilet to function correctly with the bag.
Frame/Shell Assembly
In one embodiment, the frame/shell assembly is made up of an external frame having one or more compartments for accommodating/housing main chassis/bowl 16 and waste compartment 24.
Frame/Shell
In one embodiment, the frame/shell is a central chassis on which the other sub-assemblies are attached. Depending on the application (as described above) this takes a variety of forms, including the following:
“Child” versions);
Waste Compartment
In one embodiment, waste compartment 24 stores used waste bags and enables the user to easily dispose of them. These come in a variety of sizes depending on the applications described above. In different embodiments the compartment is located in any one of the following locations:
In one embodiment, waste container 24 will have a separate entry door.
Depending on the embodiment, the waste compartment is any one of: a secondary bag, a removable box, or any other containing object configured for storage. Waste compartment 24 can be any size, for example:
The used waste bags can be removed and disposed of after any number of uses, i.e., from one use up to the max capacity of waste compartment 24, depending on the use case and user discretion. Prior to removal/disposal, soiled bags are stored without the user coming into contact with any waste directly. In one embodiment, the bags are separated for disposal by any conventional means, including, but not limited to, any one of the following mechanical means:
Toilet Seat Assembly
In one embodiment, toilet seat assembly 26 comprises toilet seat 28, toilet lid 30, and toilet hinges 32, as detailed in
Toilet Seat
In one embodiment, the product will utilize any generic, off-the-shelf toilet seat. Other embodiments utilize custom seat profiles, such as, but not limited to:
In another embodiment, toilet seat 28 is configured with an extended rim (or “splash rim”) around the internal opening. This will extend vertically down into the main chassis/bowl 16 for splash protection of the bag top and internal mechanisms. In one embodiment, toilet seat 28 is sprung loaded so the flush cycle isn't impeded by the splash rim, i.e., when there is no user sitting on the seat the splash rim is above the bag assembly, but when they sit down it drops the splash rim into the bag opening. Alternatively, the splash rim is engaged via a linkage, cam or other suitable mechanisms known in the art, which is attached to the toilet lid.
Seat material can be existing materials used in toilets, or other hard materials such as metal, or soft materials for comfort like rubber.
Toilet Lid
Different embodiments can utilize either a generic toilet lid or a custom part.
In one embodiment, the product incorporates a mechanism within lid opening operation to actuate bag openers. In one embodiment, a lever-follower mechanism is used, as shown in
One embodiment, or different embodiments altogether, incorporate any one or more of the following additional mechanisms within the lid opening operation:
In one embodiment, toilet lid 30 is configured with a seal incorporated into it for smell proofing.
Toilet Cover
In one embodiment, the toilet lid(30)/seat(28)/hinge(32) assembly is attached to a separately hinged toilet cover. This will enable it to be lifted without engaging the bag opening mechanism described above. The toilet cover is configured to be secured onto the toilet body for travel or transportation though a conventional locking method. Such conventional locking methods include, but is not limited to, seals, rubber locking legs, or any other way to lock lid to the main body.
In one embodiment, the toilet cover is incorporated into, and on the underside of, toilet seat 28 (see
Main Chassis/Bowl Assembly
In one embodiment, main chassis/bowl assembly 14 is made up of central main chassis/bowl 16 component, front bag guide 20 (i.e., bag entrance guides), opener arm assembly 58, and storage for new zipper bag refill cartridge 64, as shown in
Main Chassis/Bowl
In one embodiment, main chassis/bowl 16 is a single central part that zipper bag assembly 66 and drive assembly 34 mount to. In another embodiment, as described above in connection with the frame/shell assembly, the bowl is part of a multi-piece assembly, from which it can be separated and adapted for different arrangements. In one embodiment, main chassis/bowl 16 is configured with conventional/standard mounting features for common attachment to a range of frames/shells. A smaller version is adapted for child use cases. In one embodiment, main chassis/bowl 16 has smooth internal surfaces with minimal crevices for easy cleaning.
Front Bag Guide
In one embodiment, front bag guide 20, which is a bag entrance guide, is configured with a slot for the bag in use (or to be used) to sit into, with shelf feature for associated guide features on bag to be suspended on. In one embodiment, free rollers are provided to reduce friction in the system and help keep the bag retained correctly, and are configured to key into guide features on the bag.
Opener Arm Assembly
In one embodiment, opener arm assembly 58 features vertically pivoting opener arms 60, which fold in and out within main chassis/bowl 16 for bag closing (see
In one embodiment, opener arms 60 are driven via a mechanical linkage to open the bag when toilet lid 30 is opened. This mechanism can be actuated in several different ways, including, but not limited to:
In one embodiment, opener arms are actuated via another mechanical means, including at least one of, but not limited to:
The aforementioned mechanical means are integrated into the inner bowl of main chassis/bowl 16 to create clean internal surfaces for cleaning.
Bag Clips
In one embodiment, bag clips 62 secure the top bead on the bag (i.e., opener guide beads 74 in
In one embodiment, the use of bag clips 62 as described above is substituted with another mechanism, which includes, but is not limited to, any one of: magnets, a sticker-like material, guided holes on a track, or another method of aligning the top of the bag along/through a track, or a combination thereof.
Bag Storage
In one embodiment, main chassis/bowl assembly 14 includes unique features for storing zipper bag refill cartridge 64, including, but not limited to: clips, friction fit, and an interlocking mechanism in the cardboard box that locate into mating features in the main chassis/bowl assembly 14.
In one embodiment, the cartridge comprises a folded bag stored in a box, a rolled bag on a spindle, or individual bags in a box.
Drive Assembly
In one embodiment, drive assembly 34 comprises upper and lower drive housings 36 and 38, drive rollers 44 and drive lobes 45, roller shafts 46, a flush drive mechanism (e.g., crank handle 40), bag closer guide 42, release button 52, gearing between the rollers and drive, bag compressors, indexing mechanism 48 comprising indexing pin 50, release button 52 and indexing spring 54, and bag cutter/separator 56, as detailed in
Drive Rollers
In one embodiment, drive rollers 44 are configured to drive/pull the bag through during the flush cycle, which results in (1) closing/sealing the zipper section of bag as they roll through and (2) interlocking of drive rollers 44 with guide features on zipper, and suspend bag in place. (See
Flush Drive Mechanism
In one embodiment, drive assembly 34 is activated/engaged when a user actuates the flush drive mechanism. The flush drive mechanism can be located anywhere on the device depending on ergonomics and use case. In one embodiment, the flush drive mechanism is stowed away into a recess in toilet seat assembly 26 (compare
In one embodiment, the flush drive mechanism (i.e., drive assembly 34) is configured as a one-way drive system to enable a user to rotate the crank handle 40 in reverse without moving the bag in order to allow the handle to be stowed.
In another embodiment the flush drive mechanism utilizes such mechanical configuration, including, but not limited to any one of: lever action, foot pedal, or a combination of an electronic motor with a push button, or a combination thereof.
Drive Gearing
In one embodiment, drive rollers 44 are geared together to ensure no bag slippage occurs.
Bag Compressors
In one embodiment, bag compressors are soft foam discs located on roller spindles that the bag passes through, during which time the bag compressors gently squeeze any surplus air out of the bag without ejecting any waste. In another embodiment, such squeezing out of surplus air, as described, is accomplished by any conventional means, including, but not limited to any one of:
Indexing Mechanism
In one embodiment, indexing mechanism 48 (see
In one embodiment, indexing mechanism is configured with a release mechanism for the next flush. Any conventional release mechanism may be used, including, but not limited to:
A further embodiment is configured to provide indexing via visual cues on bag, for example color coding or numbers. Patient numbers can be assigned to bags.
In another embodiment, indexing can be achieved via directly measuring the total number of rotations of the rollers 44. To remove the risk of bag slippage, the bags could have a continuous series of holes, similar to dot matrix printer paper, with which the rollers 44 mesh with.
Zipper bag assemblies 66 are made up of a flexible film with a zipper/closure section along the top (e.g., zipper extrusion 68). In one embodiment, zipper extrusion 68 includes an integrated guide and indexing features.
Manufacture
Zipper bag assembly 66 can be biodegradable or non-biodegradable, colored and opaque or transparent. In one embodiment, zipper extrusion 68 is located along the top of a thin plastic film bag 76 in a continuous length. Bags are provided in in horizontal run with a set number of refills to be sold in refill cartridges 64 to the consumer. In one embodiment, the bags have a pleated fold at the base to help them expand/fill into the main chassis/bowl 16. In one embodiment, each bag has a set length (e.g., 400 mm long) and separated by a sealed section of a given width (e.g., 50 mm), which runs up to the zipper extrusion 68 section only (see
Zipper/Closure
In one embodiment, zipper/closure is achieved using any conventional system/method, including but not limited to any one of:
Internal vs external bag opening force controlled by thinner sections at bottom vs top:
Opener Guide Features
In one embodiment, beads having a circular geometry, (e.g., opener guide beads 74 in
Roller Guide Features
In one embodiment, external trapezium shaped ribs located below zipper for locating into bag rollers and suspending bag at bowl entrance. On the internal side of these ribs are locating features to roughly guide the bag halves together and ensure they don't slip in the rollers. These are currently a tapered point going into a loose channel.
In another embodiment, the whole zipper section is configured to act as the roller guide feature. In particular, in the embodiment shown in
Zipper Bag Refill Cartridge
In one embodiment, zipper bag refill cartridge 64 is provided in any conventional packaging, including, but not limited to, a cardboard box, a recyclable plastic cartridge, on a roll, or in some other storage means.
Zipper bag refill cartridge 64 is installed into the toilet assembly 12 by the user. Bags can be folded concertina like in package, or rolled. In one embodiment, refill cartridge 64 includes features for installing into toilet cavity of main chassis/bowl 16. The installation features may be of any conventional means, including, but not limited to, any one of the following:
Bag Indexing Feature
In one embodiment, an indexing hole 80 is provided below the zipper at the end of each bag of zipper bag assembly 66 (see
Bag Joiner
In one embodiment, the final bag in a first refill cartridge 64 is to be able to be joined to first bag of new/second refill cartridge 64 for ease of replacement by consumer. This could be accomplished in a variety of ways, including, but not limited to:
The following is a list of reference numerals and associated parts as used in this specification and drawings:
While the invention has been described in its preferred form or embodiment with some degree of particularity, it is understood that this description has been given only by way of example and that numerous changes in the details of construction, fabrication, and use, including the combination and arrangement of parts, may be made without departing from the spirit and scope of the invention.
This application is continuation of U.S. patent application Ser. No. 18/110,939 filed Feb. 17, 2023 which is a non-provisional of and claims benefit to U.S. Provisional Patent Application Ser. No. 63/311,641 filed Feb. 18, 2022, the disclosures of which are incorporated hear in by reference in their entirety.
Number | Date | Country | |
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63311641 | Feb 2022 | US |
Number | Date | Country | |
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Parent | 18110939 | Feb 2023 | US |
Child | 18209135 | US |