Waterless toilet system and method of use
10040408 ยท 2018-08-07
Assignee
Inventors
Cpc classification
A47K11/026
HUMAN NECESSITIES
A47K13/10
HUMAN NECESSITIES
A47K13/30
HUMAN NECESSITIES
Y02A50/30
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
International classification
A47K17/00
HUMAN NECESSITIES
E03D9/00
FIXED CONSTRUCTIONS
Abstract
An environmentally-friendly, portable waterless toilet for mobile environments that is provides a single-action pedal mechanism to close the lid, advance a continuous bag with waste, and seal the waste in the bag. The toilet uses a continuous bag supply having a predetermined single dose or portion of at least one chemical automatically deposited therein, the at least one chemical functional to kill pathogens in waste that is deposited through an opening in the seat and a corresponding opening of the continuous bag supply. The waste-filled continuous bag supply is at least temporarily sealed by activation of a mechanical sealing mechanism, and released downwardly into a base section, which is connected to a sitting unit, forming an integral, closed system for waterless sanitation.
Claims
1. A method for providing portable waterless sanitation for mobile environments comprising the steps of: providing a portable waterless toilet system comprising a top seating unit matingly connected to a bottom receiving container, the top seating unit further comprising a seat with an opening, a lid with a urea dispenser, a lid hinge with a slow-closing mechanism, a lid-tipping mechanism, the hinge connecting the lid to the top seating unit; and a continuous plastic bag supply; the bottom receiving container further comprising a pedal-activated mechanical sealing mechanism including a pedal and rollers, wherein the pedal is operable for activating the sealing mechanism and the lid-tipping mechanism; the continuous bag supply feeding into the mechanical sealing mechanism; advancing the continuous plastic bag supply through the mechanical sealing mechanism; activating the mechanical sealing mechanism to create a seal at a first end of the plastic bag supply to form a bag portion, wherein the seal is created by a nip line formed between the rollers; providing a bag opening corresponding to the seat opening to allow receiving of a waste into the bag portion; activating the pedal to tip the lid to close, dispense urea into the continuous bag supply and to activate and advance the mechanical sealing mechanism to completely enclose the waste within the continuous plastic bag supply by temporarily sealing a second end of the plastic bag supply when the nip line is formed between two aligned rollers; advancing the filled portion of the continuous plastic bag supply downwardly into the bottom receiving container and advancing the continuous plastic bag supply; wherein the slow-closing mechanism is restrained from a gravity-based closing, such that a pre-calculated amount of urea flows or falls into the bag portion exposed for receiving the waste and is deposited for the next usage of the waterless toilet system.
2. The method of claim 1, wherein the continuous plastic bag supply further includes an anti-microbial material for decontaminating waste.
3. The method of claim 1, wherein the lid contains a waste-treatment material and deposits a predetermined amount of the material into the bag when opened.
4. The method of claim 1, wherein the mobile environment includes planes, trains, automobiles, buses, ships, and spacecraft.
5. A system for providing portable, waterless sanitation for mobile environments comprising: a waterless toilet including a receiving container, a seat with an opening, a lid with a urea dispenser and a slow-close mechanism, a continuous plastic bag supply, a mechanical sealing mechanism, a lid-tipping mechanism, and a pedal; the lid-tipping mechanism and the mechanical sealing mechanism both activated simultaneously by the pedal when the pedal is activated; the lid pivotally connected to the seat and automatically closing in a controlled, smooth manner into a resting position over the toilet when the pedal is activated; the urea dispenser dispensing urea into the continuous bag supply as the lid closes; the mechanical sealing mechanism activating and advancing the continuous bag supply when the pedal is activated; the continuous plastic bag supply constructed and configured to feed into the mechanical sealing mechanism; wherein the mechanical sealing mechanism is operable for temporarily sealing a waste-filled portion of the continuous plastic bag supply to form a sealed bag, and advancing the sealed bag into the receiving container; thereby providing a sanitary, waterless waste disposal system.
6. The system of claim 5, wherein the continuous plastic bag supply further includes an anti-microbial material for decontaminating waste.
7. The system of claim 5, wherein the lid contains a waste-treatment material and deposits a predetermined amount of the material into the bag when opened.
8. The system of claim 1, wherein the mobile environment includes planes, trains, automobiles, buses, ships, and spacecraft.
9. The system of claim 1, wherein the slow-close lid closing mechanism restrains the lid from a merely gravity-based closing.
10. A portable sanitation apparatus for waterless, odorless waste receiving and disposal in a mobile environment comprising: a portable toilet with a lid and urea dispenser that uses a continuous bag; the portable toilet having a pedal-operated mechanism to simultaneously close the lid, dispense urea into the continuous bag supply, advance the continuous bag supply and activate a bag-sealing mechanism; and wherein the waste-filled continuous bag supply is at least temporarily sealed by activation of the bag-sealing mechanism, and released downwardly into a base section, which is connected to a sitting unit, forming an integral, closed system for waterless sanitation.
11. The portable sanitation apparatus of claim 10, further including a slow-close mechanism that closes the lid in a slow, controlled manner.
12. The portable sanitation apparatus of claim 10, wherein the slow-close mechanism restrains the lid from a merely gravity-based closing.
13. The portable sanitation apparatus of claim 10, wherein the continuous plastic bag supply further includes an anti-microbial material for decontaminating waste.
14. The portable sanitation apparatus of claim 10, wherein the lid contains a waste-treatment material and deposits a predetermined amount of the material into the bag when opened.
15. The portable sanitation apparatus of claim 10, wherein the mobile environment includes planes, trains, automobiles, buses, ships, and spacecraft.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION
(32) Referring now to the drawings in general, the illustrations are for the purpose of describing a preferred embodiment of the invention and are not intended to limit the invention thereto.
(33) The systems, methods, and apparatus embodiments of the present invention provide an environmentally-friendly portable toilet that is waterless, odorless and cost efficient, that uses a continuous bag supply having a predetermined single dose or portion of at least one chemical automatically deposited therein, the at least one chemical functional to kill pathogens in waste that is deposited through an opening in the seat and a corresponding opening of the continuous bag supply; the waste-filled continuous bag supply is at least temporarily sealed by activation of a mechanical sealing mechanism, and released downwardly into a base section, which is connected to a hard plastic sitting unit, forming an integral, closed system for waterless sanitation.
(34) The present invention provides systems and methods for waterless sanitation, including an environmentally-friendly portable toilet that is waterless, odorless and cost efficient, that uses specially-lined and/or fillable continuous bag supply portions that receive at least one chemical for neutralizing and/or killing pathogens, and are sealed and released into a base section, which is connected to a hard plastic sitting unit, forming an integral, closed system for waterless sanitation.
(35) In one embodiment of the present invention, a waterless sanitation system is provided that includes a base section enclosing a continuous bag supply and/or continuous tube of waste-containment material for receiving waste through an opening in a sitting unit, connected to and positioned above the base section.
(36) As shown in the figures, various views are provided of one embodiment of the invention, namely the apparatus and its components including a sitting unit or seat member, attached to a base unit, wherein the base unit further includes and houses waste receiving bags and/or a continuous supply of bags and/or a continuous tube of waste containment material, and the base unit is further attached to a storage bin 30, all of which are retrofittable to existing portable toilets and/or bathrooms, including but not limited to bathrooms in boats, RVs, mobile homes, etc., while no longer requiring a pit or hole for receiving waste from users, and eliminating the odor associated with waterless toilets.
(37) An apparatus for waterless, odorless waste receiving and disposal according to the present invention includes a portable toilet that is waterless, odorless and cost efficient, and that uses a continuous bag supply having a predetermined single dose or portion of at least one chemical automatically deposited therein, the at least one chemical functional to kill pathogens in waste that is deposited through a seat opening in the seat and a corresponding opening of the continuous bag supply; the waste-filled continuous bag supply is at least temporarily sealed by activation of a mechanical sealing mechanism, and released downwardly into a base section, which is connected to a hard plastic sitting unit, forming an integral, closed system for waterless sanitation. Preferably, the at least one chemical is an anti-microbial material for decontaminating waste, and wherein the waste-filled continuous bag supply is biodegradable, environmentally-friendly, and/or non-toxic and the at least one chemical includes an anti-microbial agent. In one embodiment, the plastic material is an engineered plastic containing PVDC and having multiple layers that is non-toxic.
(38) In embodiments for a system for providing waterless sanitation, a waterless toilet is provided for use within a portable toilet enclosure constructed and configured with a closable door entry and sides shaped to receive a person along with the waterless toilet, which further includes a housing enclosing a top seating unit matingly connected to a bottom receiving container, the top seating unit enclosing a continuous plastic bag supply constructed and configured to feed into a mechanical sealing mechanism formed by two aligned rollers that form a nip line when activated into a closed position; wherein the mechanical sealing mechanism is operable for temporarily sealing a waste-filled portion of the continuous plastic bag supply to form a sealed bag, and advancing the sealed bag into the bottom receiving container, thereby providing a sanitary, waterless waste disposal system.
(39) The system includes a spring-loaded foot pedal to activate the mechanical sealing mechanism, and to advance the waste-filled portion and sealed bag portion of the continuous bag supply to create a faux-flushing action. The mechanical sealing mechanism further includes four interactive gears connected by spaced-apart, aligned rollers that are activatable by the mechanical sealing mechanism to form a nip line to cinch and to seal the continuous bag supply to form sealed waste-filled bags when activated. The top seating unit includes a lid pivotally connected to a seat, wherein the seat includes a seat opening for waste to be deposited into the continuous bag supply. And preferably, the lid and the seat pivot motion activates the depositing of a predetermined amount of a chemical into the continuous bag supply opening. In preferred embodiments, the top seating unit and the bottom receiving container, and the housing are formed of a rigid plastic material suitable for supporting the weight of a person up to at least about 300 and up to about 400 lbs. without deflecting, cracking, bending, or breaking. The continuous bag supply (not shown) includes a bag opening that corresponds with and/or aligns with a top seating unit opening to allow waste to be deposited through the top seating unit opening into the continuous bag supply opening.
(40) In methods of the present invention for providing waterless sanitation, the following steps are included: providing a waterless toilet system comprising a top seating unit matingly connected to a bottom receiving container, the top seating unit further comprising a continuous plastic bag supply that feeds into a mechanical sealing mechanism; advancing the continuous plastic bag supply through the mechanical sealing mechanism; activating the mechanical sealing mechanism to create a seal a first end of the plastic bag supply to form a bag portion, wherein the seal is created by a nip line formed between two aligned rollers; providing a bag opening corresponding to a seat opening to allow receiving of a waste into the bag portion; activating the mechanical sealing mechanism to completely enclose the waste within the continuous plastic bag supply by temporarily sealing a second end, when the nip line is formed between two aligned rollers; advancing the filled portion of the continuous bag supply downwardly into the bottom receiving container; and providing a waterless faux-flushing action by activating the mechanical sealing mechanism and advancing the filled bag portion with a spring-loaded foot pedal.
(41) In one embodiment, the waterless faux-flushing action is provided by activating a foot pedal constructed and configured to connect with mechanical gears that automatically perform the step of advancing the filled portion of the continuous bag supply downwardly.
(42) Preferably, in the apparatus, systems and methods of the present invention, the continuous plastic bag supply further includes an anti-microbial material for decontaminating waste, which may be added by depositing into the continuous bag supply opening and/or predeposited, lined, or otherwise incorporated into the continuous bag supply material and/or inner surface that is exposed to the waste.
(43) Referring now to
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(47) The anti-microbial dispenser is a gravity fed system attached to the lid of the toilet seat. The anti-microbial is filled from the top of the closed lid. When the lid is opened, anti-microbial flows down to the bottom of the container, which is measured to hold 6 grams of the anti microbial. When flushed in the faux-flushing activation, a plunger or a tipping mechanism, for example as described in the foregoing, pushes the lid closed. The toilet seat and lid hinged closing mechanism preferably provides a slow close toilet seat, i.e., that gently closes without banging harshly or that is restrained from a merely gravity-based closing around the hinge. As the toilet lid closes, the pre-calculated amount or dose of the at least one chemical agent or anti-microbial flows or falls out into the bag portion exposed for receiving the waste deposited from the next usage of the waterless toilet apparatus. When the next user, lifts the toilet lid to the use the toilet, the at least one chemical agent, such as an anti-microbial, is automatically refilled within the dispenser chamber for the predetermined dose amount.
(48) More specifically,
(49) The system is a closed-looped system to collect excreta through a toilet seat and base apparatus that is retrofittable for existing portable toilets (port-a-potties), boat toilets/bathrooms, campers, RVs, etc. By way of example and not limitation, the system may be used as a stand-alone unit for an alternative toilet for the transportation industry, may have application in mobile home trailers, campers, boats, and the like, or may have application for use in developing countries where plumbing systems are not available or water supplies are limited.
(50) In a preferred embodiment, the system includes a sitting unit or seat member that is attached to a base unit, wherein the base unit further includes and houses waste receiving bags, and the base unit is further attached to a storage bin. In preferred embodiments, the sitting unit is formed of hard plastic and is pivotally connected to the base unit. In an alternative embodiment, the bags may be specially lined bags that include chemicals or enzymes that help to treat the excreta; however, in the preferred embodiments of the present invention, at least one chemical agent (or enzyme) is provided via an automated dosage depositing into the open bag portion as described hereinabove and illustrated in the figures. A sealing mechanism, either temporary sealing to block odors and/or permanent sealing, is used to close and seal the bag after it is full of excreta, before a release mechanism functions to release and/or drop it into the storage bin, thus limiting smell and making it easy to empty. The hard plastic sitting unit has two main components: a bottom holding tank; and a top unit that contains a sealing mechanism. The bottom holding tank fits together using male and female pieces to form a cube for holding the bags. The holding tank is lined with a recycled content material, a biodegradable garbage bag, or similar containment material, to allow for containment of the filled bags and for easy closure and emptying. In a method for using the invention, the bags are then collected or removed from the holding tank. Preferably, the waste output is turned into bio-gas using gasification or fertilizer using composting.
(51) As illustrated in the drawings, particularly
(52) In a preferred embodiment, the present invention provides a closed-loop system for waterless human waste receiving, decontamination, and disposal. The system includes a hard plastic sitting unit having two parts including a bottom holding tank or storage bin or receptacle and a top seat and pivotally connected lid, which is movable between an open and a closed position as illustrated in the
(53) The mechanical sealing mechanism illustrated in
(54) In preferred embodiments, the continuous bag supply are dosed with at least one chemical for killing pathogens in the waste deposited into the bag portions. In preferred embodiments the at least one chemical is dosed in a predetermined amount into each bag portion after the waste is deposited therein and when the lid is moved into a closed position, as illustrated in
(55) Preferably, the plastic tube would contain enough material to supply a multiplicity of bag portions, for example, the equivalent of at least about 30 to about 100 continuous bag portions (about one foot of continuous bag supply tubing for each bag portion).
(56) In an alternative embodiment, the continuous plastic tube 22, housed within the bag cartridge unit 25, extends outward in each direction, parallel to section D-D (see
(57) In an alternative embodiment, the bags are perforated, so when sealed after use, the used bag drops into the base individually, so that a continuous sausage link is not formed. The weight of the filled used bag provides the force required to pull down the next bag.
(58) Preferably, a single layered bag is used, and also preferably it is a bio-degradable plastic. While in an alternative embodiment it may be lined with Urea and other anti-microbials, in preferred embodiments the plastic tube bag supply is not pre-treated with Urea or other chemical additives, rather the at least one chemical agent, preferably Urea and/or other anti-microbials, is deposited into the continuous plastic bag supply tube via the same opening where the waste is deposited; preferably, the Urea and/or at least one chemical agent is deposited in a predetermined amount, by way of example about 6 grams. See generally
(59) In one embodiment, the waterless toilet system of the present invention is made out of plastic, which enables it to be versatile for the different types of households in developing countries that would use it. By way of example and not limitation, suitable plastic materials for forming the continuous plastic tube bag supply are selected from the group consisting of PVDC, polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), and derivations or combinations thereof. These suitable plastic materials are durable, versatile, easy to manufacture, and cost-effective. Additionally, the use of a hard plastic material for forming the storage container or holding tank is advantageous because it is waterproof and is easy to mold into different shapes to allow for both sitting and squatting. The present invention is preferably a waterless system for receiving and decontaminating urine and solid waste from human excrement. The present invention is operable to receive a very small amount of additional material associated with the human excrement, e.g., small quantities of used toilet paper, leaves, or small amounts of water, i.e., several milliliters instead of liters of water used with water-based flushing toilets. The small quantities of used toilet paper, leaves, and/or small amounts of water used as an anal cleansing method may be disposed of with the excreta and received by the waterless toilet system of the present invention. Additionally, personal waste associated with feminine hygiene, which also requires decontamination as human waste may also be disposed into the system and decontaminated within the active decontamination bags used with the present invention. By way of example and not limitation, feminine hygiene waste may include sanitary napkins, tampons, diapers, bladder control personal products, and other personal hygiene products.
(60) The waterless toilet systems of the present invention may be used in an outhouse or inside a residence, depending on household preference. Importantly, the waste is entirely contained within the bags inside the storage bin or holding tank and does not require a pit, such as with portable toilets of the prior art, or significant land space for plumbing for water-based disposal and treatment of the waste. The present invention is constructed and configured to be impervious to liquids, and thereby to prevent contamination of surfaces within the storage bin or container or holding tank. Preferably, the use of hard plastic or metal for the sitting unit, bag dispensing unit, and storage bin or holding tank, provides for cleaning and disinfection, as needed, in particular for the human contact surfaces.
(61) The present invention may include a method for providing waterless sanitation comprising the step of providing a waterless toilet system including a top seating unit matingly connected to a bottom receiving container, the top seating unit further comprising a bag cartridge with a continuous plastic tube that feeds into a mechanical sealing mechanism, which is preferably formed by opening and closing foamed rollers to form a nip line with the continuous plastic tube between the nip line when the rollers are in a closed or sealed position. The method may further include the steps of: advancing the continuous plastic tube downwardly; activating the mechanical sealing mechanism to temporarily seal a first end of the continuous plastic tube to form a bag portion from the continuous plastic tube without creating individual plastic bags that separate from each other, wherein the bag portion is formed from the opening of the bag tube supply that corresponds to the seat opening, and a closed end or tip end of the continuous bag supply tubing, which is gravity deposed downwardly into the base; filling the bag portion with waste (the filled bag portion allocated up to about one foot of the continuous plastic tubing per usage); activating the mechanical sealing mechanism to completely temporarily enclose the waste within the plastic bag portion and sealing odor via the nipped rollers pinning closed the opening of the continuous plastic bag supply tubing, without requiring a permanent sealing at a second end; and advancing the filled bag portion downwardly into the bottom receiving container. This method may further include the step of activating the mechanical sealing mechanism and advancing the filled bag portion with a spring-loaded foot pedal, thereby providing a waterless faux-flushing action.
(62) This invention may include a system for providing waterless sanitation comprising a waterless toilet comprising a top seating unit matingly connected to a bottom receiving container, the top seating unit further comprising a bag cartridge including a continuous plastic tube that feeds into a mechanical sealing mechanism. The mechanical sealing mechanism is operable for completely sealing a waste-filled portion of the continuous plastic tube to form a sealed bag, and advancing the sealed bag into the bottom receiving container, thereby providing a sanitary, waterless waste disposal system. In the most preferred embodiments, a continuous tube of plastic material is provided for receiving the waste, wherein a first end is formed by sealing or closing the tip of the tube to form an elongated continuous bag supply, without disconnectable individual bags for waste. Furthermore, the continuous plastic tube may further include an anti-microbial material for decontaminating waste. The system may further including a spring-loaded foot pedal to activate the mechanical sealing mechanism and/or to advance the waste-filled portion and sealed bag to create a faux-flushing action. The top seating unit may further include a lid pivotally connected to a seat, wherein the seat includes an opening for waste to be deposited. The bag cartridge may be removably connected to the top seating unit. The top seating unit and the bottom receiving container may be formed of a hard plastic material. The mechanical sealing mechanism may further include four interactive gears connected by sealing rods that cooperate to cinch and to seal the continuous tubing to form sealed waste-filled bags when activated.
(63) The present invention may include a method for providing waterless sanitation, comprising the first step of providing a waterless toilet system comprising a bottom receiving container and a top seating unit, the top seating unit further including a bag cartridge, a plastic tube including a first end, and a mechanical sealing mechanism. In an alternate embodiment, the plastic tube is housed within the bag cartridge and the first end is positioned for advancement from the bag cartridge, and, further, the top seating unit is positioned above the bottom receiving unit and edges of the top seating unit and bottom receiving container are connected to form a seal. The subsequent steps include: advancing the first end of the plastic tube from the bag cartridge to the mechanical sealing mechanism; activating the mechanical sealing mechanism, thereby sealing the first end of the plastic tube to form an open bag; filling the open bag with waste; activating the mechanical sealing mechanism, thereby creating a second seal in the plastic tube to enclose the waste within a sealed bag; and advancing the sealed bag downwardly into the bottom receiving container. Alternatively, the step of activating the mechanical sealing mechanism may additionally include depressing a spring-loaded foot pedal.
(64) An alternative embodiment of the present invention may include a system for providing waterless sanitation with a waterless toilet is comprised of a bottom receiving container a top seating unit, the top seating unit including a bag cartridge, a plastic tube including a first end, and a mechanical sealing mechanism. The plastic tube is housed within the bag cartridge and the first end is positioned for advancement from the bag cartridge. Furthermore, the top seating unit is positioned above the bottom receiving unit and edges of the top seating unit and bottom receiving container are connected to form a seal. The mechanical sealing mechanism is operable to completely seal a waste-filled portion of the plastic tube, thereby creating a sealed bag and is further operable to advance the sealed bag into the bottom receiving container. The plastic tube may further include an anti-microbial material for waste decontamination. The system may further include a spring-loaded foot pedal configured to activate the mechanical sealing mechanism and/or advance the sealed bag. The top seating unit may further include a lid pivotally connected to a seat, wherein the seat includes an opening for waste to be deposited. The bag cartridge may additionally be removably connected to the top seating unit. The top seating unit and the bottom receiving container may be formed of a hard plastic material. The mechanical sealing mechanism may further include four interactive gears connected by sealing rods that cooperate to cinch and to seal the plastic tubing to form the filled bags upon activation.
(65) The present invention provides for a portable waterless toilet that is advantageously used in a variety of locations and applications, especially mobile environments, such as by way of example and not limitation, toilets used in recreational vehicles, trailers, airplanes, trains, buses, ships, boats, watercraft, and spacecraft. Because the portable waterless toilet of the present invention does not require plumbing or ventilation systems, and fully sealingly encloses the waste as described hereinabove, it can be installed in these environments without extensive site preparation or modification and also is applicable in environmentally sensitive areas, either for temporary or permanent installation or usage. Additionally, the present invention provides for use in mobile environments because there is no environmental discharge or need for continuous ventilation. Furthermore, on-site cleaning and maintenance is rapid and reduced compared to standard water-based flushing toilets, as a toilet in need of service can simply be substituted with a working toilet and taken to a dedicated facility for repair. Thus, the present invention is ideal for environments where portable toilets are traditionally used, such as construction sites and events.
(66) Certain modifications and improvements will occur to those skilled in the art upon a reading of the foregoing description. The above-mentioned examples are provided to serve the purpose of clarifying the aspects of the invention and it will be apparent to one skilled in the art that they do not serve to limit the scope of the invention. All modifications and improvements have been deleted herein for the sake of conciseness and readability but are properly within the scope of the present invention and the claims.