WO2009057108A1 - Apparatus and method for collecting and disposing pet waste - Google Patents
Apparatus and method for collecting and disposing pet waste Download PDFInfo
- Publication number
- WO2009057108A1 WO2009057108A1 PCT/IL2008/001421 IL2008001421W WO2009057108A1 WO 2009057108 A1 WO2009057108 A1 WO 2009057108A1 IL 2008001421 W IL2008001421 W IL 2008001421W WO 2009057108 A1 WO2009057108 A1 WO 2009057108A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- waste
- oxidizing agent
- collection receptacle
- heat
- disposed
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/12—Hand implements, e.g. litter pickers
- E01H1/1213—Hand implements, e.g. litter pickers in situ treatment of excrements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/006—Specially adapted for removing excrements
- E01H1/008—Specially adapted for removing excrements in situ treatment of excrements
Definitions
- the present invention relates generally to disposing pet waste and the like and more particularly to improved apparatus and methods by which pet waste and the like may be disposed without soiling one's hands, while eliminating bad odor and microbial contamination.
- a gel composition containing oxidizing agents and thickening or gelling agents has also been proposed to detoxify chemical and biological agents by application directly to a contaminated area.
- the gelling agent is a colloidal material, such as silica, alumina, or alumino-silicate clays, which forms a viscous gel that does not flow when applied to tilted or contoured surfaces. After decontamination, the residue can be washed away or vacuumed up for disposal.
- the present invention seeks to provide improved apparatus and methods for disposing pet waste by means of combustion, as described more in detail hereinbelow.
- Animal droppings (pet waste, feces or exudates, the terms being used interchangeably) are composed of organic matter that in principle may be incinerated or at least sterilized to eliminate bacterial activity and bad odor.
- a major problem associated with fresh feces is their high water content that inhibits incineration and unfortunately provides a good medium for bacterial growth and propagation.
- the high water content makes the feces sticky and dirty.
- An attempt to burn fresh feces by an external heat source such as a gas burner, is typically associated with a formation of external layer of inorganic matter that insulates the wet interior and inhibits heat transfer and combustion thereto. Efficient heat transfer to the interior parts of the feces and water evaporation therefrom are essential components of fecal disposal by heat.
- the present invention solves these problems, as described more in detail below, by using a portable waste collection receptacle disposed on a handle, and a heat source mounted together with the waste collection receptacle, capable of incinerating or sterilizing waste disposed in the waste collection receptacle.
- An oxidizing agent e.g., potassium permanganate
- potassium permanganate can be mixed with the waste to generate heat to the waste. This provides efficient heat transfer to the interior parts of the feces and water evaporation therefrom.
- Fig. 1 is a simplified pictorial illustration of apparatus for pet waste disposal, constructed and operative in accordance with an embodiment of the present invention. DETAILED DESCRIPTION OF EMBODIMENTS
- FIG. 1 illustrates apparatus 10 for pet waste disposal, constructed and operative in accordance with an embodiment of the present invention.
- Apparatus 10 may include a waste collection receptacle 12, which may be a chamber disposed at the end of a handle 13.
- Receptacle 12 may be open at an end or side thereof (e.g., open at its bottom surface) or may be closed with a hinged or trap door for allowing entry therein of feces and exit therefrom of ash or other combustion products.
- Apparatus 10 includes a heat source 14 capable of incinerating or sterilizing waste 15.
- Heat source 14 may include, without limitation, a gas burner, oxidizing agent, laser heater, microwave heater, radiofrequency heater, electric resistance heater and the like, which is capable of drying and burning the organic waste 15 in a relatively short period of time without damaging the environment in general and the operator in particular.
- Heat transfer elements 16 e.g., metal rods or plates
- heat is generated by mixing the organic waste 15 with sufficient amount of an oxidizing agent 18, such as but not limited to, potassium permanganate or any other safe oxidizing agent.
- Oxidizing agent 18 may be stored in a compartment 20 in apparatus 10 and dispensed via one or more valves 22. Alternatively, oxidizing agent 18 may be manually dispensed by the operator from an external source (e.g., a bag carried by the operator).
- a mixing device 23 (such as but not limited to a beater, electrically or manually operated) may be provided for mixing oxidizing agent 18 with the feces.
- the device may contain one or more thermoelectric electrodes 24 that may convert heat to electricity by the Seebeck effect, i.e., the conversion of temperature differences directly into electricity.
- the electricity produced by the electrodes may be used for electrolysis of the water in the waste to molecular oxygen and molecular hydrogen that may contribute to the incineration of the organic waste.
- the electricity produced may also be used to charge a battery or operate an electrical device.
- apparatus 10 may include a collapsible shovel 26 that may be used to pick up the feces and dispose of the byproducts of combustion (mainly ash).
- Apparatus 10 may be constructed of light materials and have a telescopic body for folding into a small size convenient for carrying. Apparatus 10 may be operated in any open space, such as but not limited to, pavements, lawns, parks etc., without causing any damage.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Housing For Livestock And Birds (AREA)
- Gasification And Melting Of Waste (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Abstract
Apparatus (10) for pet waste disposal including a portable waste collection receptacle (12) disposed on a handle (13), characterized by a heat source (14) mounted together with the waste collection receptacle (12), capable of incinerating waste (15) disposed in the waste collection receptacle (12).
Description
APPARATUS AND METHOD FOR COLLECTING AND DISPOSING PET WASTE
FIELD OF THE INVENTION
The present invention relates generally to disposing pet waste and the like and more particularly to improved apparatus and methods by which pet waste and the like may be disposed without soiling one's hands, while eliminating bad odor and microbial contamination.
BACKGROUND OF THE INVENTION
Due to increasing pet populations, certain large cities have adopted ordinances requiring pet owners to clean up after their pets. Even in areas where such cleanliness is not a prescribed ordinance, it is often desirable to dispose of pet waste and the like in order to maintain attractive lawns and streets which are safe to walk on without soiling one's shoes.
There have been various attempts to deal with these problems in the past. Some individuals have been known to place one of their hands inside a bag of flexible material, such as plastic, as if it were a glove, pick up the waste material using the "gloved" hand, and pull the end of the bag off of the hand in a manner so as to invert the bag around the waste material and package it for later disposal. However, this "gloved" hand method is esthetically unpleasing and otherwise unpleasant to the pet owner, particularly if the bag breaks at an opportune moment.
Other devices utilize a plastic bag and a frame, or multiple frames that may be collapsible and are used as scoops or shovels to place the waste material within the bag so that the bag may be inverted around the excrement and packaged for disposal. However, all these methods suffer from the fact that the waste is biologically active and therefore possess environmental hazards.
A gel composition containing oxidizing agents and thickening or gelling agents has also been proposed to detoxify chemical and biological agents by application directly to a contaminated area. The gelling agent is a colloidal material, such as silica, alumina, or alumino-silicate clays, which forms a viscous gel that does not flow when applied to tilted or contoured surfaces. After decontamination, the residue can be washed away or vacuumed up for disposal.
SUMMARY OF THE INVENTION
The present invention seeks to provide improved apparatus and methods for disposing pet waste by means of combustion, as described more in detail hereinbelow.
Animal droppings (pet waste, feces or exudates, the terms being used interchangeably) are composed of organic matter that in principle may be incinerated or at least sterilized to eliminate bacterial activity and bad odor. However, a major problem associated with fresh feces is their high water content that inhibits incineration and unfortunately provides a good medium for bacterial growth and propagation. Furthermore, the high water content makes the feces sticky and dirty. An attempt to burn fresh feces by an external heat source, such as a gas burner, is typically associated with a formation of external layer of inorganic matter that insulates the wet interior and inhibits heat transfer and combustion thereto. Efficient heat transfer to the interior parts of the feces and water evaporation therefrom are essential components of fecal disposal by heat.
The present invention solves these problems, as described more in detail below, by using a portable waste collection receptacle disposed on a handle, and a heat source mounted together with the waste collection receptacle, capable of incinerating or sterilizing waste disposed in the waste collection receptacle. An oxidizing agent (e.g., potassium permanganate) can be mixed with the waste to generate heat to the waste. This provides efficient heat transfer to the interior parts of the feces and water evaporation therefrom.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be understood and appreciated more fully from the following detailed description taken in conjunction with the drawing in which:
Fig. 1 is a simplified pictorial illustration of apparatus for pet waste disposal, constructed and operative in accordance with an embodiment of the present invention. DETAILED DESCRIPTION OF EMBODIMENTS
Reference is now made to Fig. 1, which illustrates apparatus 10 for pet waste disposal, constructed and operative in accordance with an embodiment of the present invention.
Apparatus 10 may include a waste collection receptacle 12, which may be a chamber disposed at the end of a handle 13. Receptacle 12 may be open at an end or side thereof (e.g., open at its bottom surface) or may be closed with a hinged or trap door for allowing entry therein of feces and exit therefrom of ash or other combustion products.
Apparatus 10 includes a heat source 14 capable of incinerating or sterilizing waste 15. Heat source 14 may include, without limitation, a gas burner, oxidizing agent, laser heater, microwave heater, radiofrequency heater, electric resistance heater and the like, which is capable of drying and burning the organic waste 15 in a relatively short period of
time without damaging the environment in general and the operator in particular. Heat transfer elements 16 (e.g., metal rods or plates) may be provided to contact or even pierce the waste 15 to accelerate heat transfer and water evaporation.
In a preferred embodiment, heat is generated by mixing the organic waste 15 with sufficient amount of an oxidizing agent 18, such as but not limited to, potassium permanganate or any other safe oxidizing agent. Oxidizing agent 18 may be stored in a compartment 20 in apparatus 10 and dispensed via one or more valves 22. Alternatively, oxidizing agent 18 may be manually dispensed by the operator from an external source (e.g., a bag carried by the operator). A mixing device 23 (such as but not limited to a beater, electrically or manually operated) may be provided for mixing oxidizing agent 18 with the feces.
In another embodiment, the device may contain one or more thermoelectric electrodes 24 that may convert heat to electricity by the Seebeck effect, i.e., the conversion of temperature differences directly into electricity. The electricity produced by the electrodes may be used for electrolysis of the water in the waste to molecular oxygen and molecular hydrogen that may contribute to the incineration of the organic waste. The electricity produced may also be used to charge a battery or operate an electrical device.
Additionally, apparatus 10 may include a collapsible shovel 26 that may be used to pick up the feces and dispose of the byproducts of combustion (mainly ash). Apparatus 10 may be constructed of light materials and have a telescopic body for folding into a small size convenient for carrying. Apparatus 10 may be operated in any open space, such as but not limited to, pavements, lawns, parks etc., without causing any damage.
In an experiment carried out with an embodiment of the invention, 50 gr of dog feces were mixed with about 20 gr of potassium permanganate. After about 20 seconds an exothermic reaction occurred, causing a temperature rise of about 1000C, and converting the feces to a dry odorless material which could be burned easily by a gas burner. The resulting ash was disposed directly on a green lawn. No phytotoxic signs were observed in a period of 30 days, indicating that the disposed material is environmentally safe.
It will be appreciated by persons skilled in the art that the present invention is not limited by what has been particularly shown and described hereinabove. Rather the scope of the present invention includes both combinations and subcombinations of the features described hereinabove as well as modifications and variations thereof which would occur to a person of skill in the art upon reading the foregoing description and which are not in the prior art.
Claims
1. Apparatus (10) for pet waste disposal comprising: a portable waste collection receptacle (12) disposed on a handle (13); characterized by a heat source (14) mounted together with said waste collection receptacle (12), capable of incinerating waste (15) disposed in said waste collection receptacle (12).
2. The apparatus (10) according to claim 1, wherein said heat source (14) is capable of sterilizing the waste (15).
3. The apparatus (10) according to claim 1, further comprising heat transfer elements (16) that contact the waste (15) to accelerate heat transfer and water evaporation.
4. The apparatus (10) according to claim 1, further comprising an oxidizing agent (18) mixed with the waste (15) that generates heat to the waste (15).
5. The apparatus (10) according to claim 4, wherein said oxidizing agent (18) comprises potassium permanganate.
6. The apparatus (10) according to claim 4, wherein said oxidizing agent (18) is stored in a compartment (20) in the apparatus (10) and is dispensed via one or more valves (22).
7. The apparatus (10) according to claim I5 further comprising one or more thermoelectric electrodes (24) that convert heat to electricity.
8. The apparatus (10) according to claim 1, further comprising a collapsible shovel (26) for picking up the waste (15) or for disposing byproducts of combustion.
9. A method for pet waste disposal comprising: collecting waste (15) into a portable waste collection receptacle (12) disposed on a handle (13); and characterized by incinerating waste (15) disposed in said waste collection receptacle (12) with heat generated by a heat source (14) mounted together with said waste collection receptacle (12).
10. The method according to claim 9, comprising generating heat by mixing an oxidizing agent (18) with the waste (15).
11. The method according to claim 10, wherein said oxidizing agent (18) comprises potassium permanganate.
12. The method according to claim 10, wherein said oxidizing agent (18) is stored in a compartment (20) and dispensed via one or more valves (22).
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/739,957 US8096597B2 (en) | 2007-11-01 | 2008-10-29 | Apparatus and method for collecting and disposing pet waste by incineration |
AT08846093T ATE523636T1 (en) | 2007-11-01 | 2008-10-29 | DEVICE AND METHOD FOR COLLECTION AND DISPOSAL OF ANIMAL EXCREMENTS |
DK08846093.6T DK2203604T3 (en) | 2007-11-01 | 2008-10-29 | Apparatus and methods for collecting and disposing of pet stools |
EP08846093A EP2203604B1 (en) | 2007-11-01 | 2008-10-29 | Apparatus and method for collecting and disposing pet waste |
US13/326,359 US9039053B2 (en) | 2007-11-01 | 2011-12-15 | Apparatus and method for collecting and disposing waste |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US98439907P | 2007-11-01 | 2007-11-01 | |
US60/984,399 | 2007-11-01 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/739,957 A-371-Of-International US8096597B2 (en) | 2007-11-01 | 2008-10-29 | Apparatus and method for collecting and disposing pet waste by incineration |
US13/326,359 Continuation-In-Part US9039053B2 (en) | 2007-11-01 | 2011-12-15 | Apparatus and method for collecting and disposing waste |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009057108A1 true WO2009057108A1 (en) | 2009-05-07 |
Family
ID=40343546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IL2008/001421 WO2009057108A1 (en) | 2007-11-01 | 2008-10-29 | Apparatus and method for collecting and disposing pet waste |
Country Status (6)
Country | Link |
---|---|
US (1) | US8096597B2 (en) |
EP (1) | EP2203604B1 (en) |
AT (1) | ATE523636T1 (en) |
DK (1) | DK2203604T3 (en) |
ES (1) | ES2372333T3 (en) |
WO (1) | WO2009057108A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013019444A3 (en) * | 2011-08-02 | 2013-11-28 | Paulee Cleantec Ltd. | Toilet apparatus and method for disposing and sterilizing waste |
WO2015160356A1 (en) * | 2014-04-17 | 2015-10-22 | Epic Industries, Llc | Waste treatment system |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9039053B2 (en) * | 2007-11-01 | 2015-05-26 | Paulee Cleantec Ltd. | Apparatus and method for collecting and disposing waste |
US20130146513A1 (en) * | 2011-12-12 | 2013-06-13 | Oded Shoseyov | Disposal of organic waste |
US9936842B2 (en) * | 2015-06-22 | 2018-04-10 | Paulee Cleantec Ltd. | Disposal of organic waste |
CA3030925A1 (en) * | 2016-07-15 | 2018-01-18 | Yu-Ling Cheng | Treatment of fecal matter by smoldering and catalysis |
US10633811B1 (en) * | 2017-09-03 | 2020-04-28 | Cosmic Pet LLC | Apparatus and method for collecting and disposing of pet waste |
US20190200578A1 (en) * | 2017-12-28 | 2019-07-04 | Chin-Jung Chang | Bird waste disposal device for birdcage |
US11118320B2 (en) | 2018-11-16 | 2021-09-14 | Helen Delsea PATTERSON | Animal waste extraction device |
Citations (2)
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DE2306593A1 (en) * | 1973-02-10 | 1974-08-22 | Benjamin Eisenstadt | DEVICE FOR PICKING UP THE POOLES OF PETS SUCH AS DOGS OR CATS |
FR2645049A1 (en) * | 1989-03-30 | 1990-10-05 | Lataillade Maurice | Apparatus allowing the recovery of animal droppings or of objects in sand or in litter or in pits for children's games, and their treatment by the application of microwaves |
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EP0338163A3 (en) * | 1988-04-20 | 1990-03-14 | Gary Sutton | Improvements in or relating to the disposal of waste material |
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US5400443A (en) * | 1993-10-01 | 1995-03-28 | Marino; John | Waste processing toilet |
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WO2009067792A1 (en) * | 2007-11-30 | 2009-06-04 | John Ferris | Waste collecting device |
-
2008
- 2008-10-29 ES ES08846093T patent/ES2372333T3/en active Active
- 2008-10-29 EP EP08846093A patent/EP2203604B1/en active Active
- 2008-10-29 DK DK08846093.6T patent/DK2203604T3/en active
- 2008-10-29 AT AT08846093T patent/ATE523636T1/en active
- 2008-10-29 US US12/739,957 patent/US8096597B2/en active Active
- 2008-10-29 WO PCT/IL2008/001421 patent/WO2009057108A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2306593A1 (en) * | 1973-02-10 | 1974-08-22 | Benjamin Eisenstadt | DEVICE FOR PICKING UP THE POOLES OF PETS SUCH AS DOGS OR CATS |
FR2645049A1 (en) * | 1989-03-30 | 1990-10-05 | Lataillade Maurice | Apparatus allowing the recovery of animal droppings or of objects in sand or in litter or in pits for children's games, and their treatment by the application of microwaves |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013019444A3 (en) * | 2011-08-02 | 2013-11-28 | Paulee Cleantec Ltd. | Toilet apparatus and method for disposing and sterilizing waste |
CN103781390A (en) * | 2011-08-02 | 2014-05-07 | 宝勒清洁科技有限公司 | Toilet apparatus and method for disposing and sterilizing waste |
WO2015160356A1 (en) * | 2014-04-17 | 2015-10-22 | Epic Industries, Llc | Waste treatment system |
JP2017519632A (en) * | 2014-04-17 | 2017-07-20 | エピック クリーンテック インコーポレイテッド | Waste treatment system |
US9908797B2 (en) | 2014-04-17 | 2018-03-06 | Epic Cleantec Inc. | Waste treatment system |
US10017405B2 (en) | 2014-04-17 | 2018-07-10 | Epic Cleantec Inc. | Waste treatment system |
US10479708B2 (en) | 2014-04-17 | 2019-11-19 | Epic Cleantec Inc. | Waste treatment system |
Also Published As
Publication number | Publication date |
---|---|
ES2372333T3 (en) | 2012-01-18 |
US8096597B2 (en) | 2012-01-17 |
US20100259055A1 (en) | 2010-10-14 |
ATE523636T1 (en) | 2011-09-15 |
DK2203604T3 (en) | 2011-11-14 |
EP2203604B1 (en) | 2011-09-07 |
EP2203604A1 (en) | 2010-07-07 |
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