US3486174A - Device for elimination of unpleasant smell at electric closets - Google Patents

Device for elimination of unpleasant smell at electric closets Download PDF

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Publication number
US3486174A
US3486174A US648555A US3486174DA US3486174A US 3486174 A US3486174 A US 3486174A US 648555 A US648555 A US 648555A US 3486174D A US3486174D A US 3486174DA US 3486174 A US3486174 A US 3486174A
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United States
Prior art keywords
combustion chamber
chamber
electric
combustion
gases
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Expired - Lifetime
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US648555A
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English (en)
Inventor
Hans Josef Nordstedt
Lars Folke Delin
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HAKANSSONS IND AB
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HAKANSSONS IND AB
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT; ACCESSORIES THEREFOR, e.g. TOILET ACCESSORIES
    • A47K11/00—Closets without flushing; Urinals without flushing; Chamber pots; Chairs with toilet conveniences or specially adapted for use with toilets
    • A47K11/02—Dry closets, e.g. incinerator closets
    • A47K11/023—Incinerator closets
    • Y—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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Definitions

  • the present invention relates to a device for making the incineration of faeces and urine complete in electric closets so as to eliminate unpleasant smells. This has according to the invention been achieved by means of an after-burner chamber, arranged between the combusting chamber of the closet and a fan aggregate for exhausing the combustion gases from the closet.
  • the present invention has reference to a device for the elimination of unpleasant smell at electric closets of the kind comprising two compartments situated one on the top of the other, the upper compartment comprising a closet chair and the lower department comprising an electric combustion chamber with a fan aggregate.
  • the combustion gases formed at the incineration of the faeces in the combustion chamber are sucked out of this chamber by the fan aggregate and conveyed further out through a chimney tube.
  • Special difificulties are present when in the combustion chamber there is only urine at the evaporation gives a very unpleasant smell in spite of a very strong suction by the fan aggregate.
  • the diificulties are in this case caused thereby that the temperature at the combustion only slightly exceeds 100 C. at which no complete combustion takes place.
  • the main feature of the invention is to be seen therein that between the combustion chamber and the fan aggregate there is arranged an after-burner chamber which is adapted, when the fan sucks out the substances being incinerated in the combustion chamber, finally and completely to incinerate these substances.
  • This after-burner chamber can take many a shape which will be obvious from the following description.
  • a filter which comprises active carbon and through which the discharged combustion gases stream.
  • a cone having its point directed downwards On this cone there is in its turn arranged a cone having its point directed upwards, the base surface of last mentioned cone being greater than the one of the cone with the point directed downwards.
  • arice ranged a catalytic element which comprises a number of threads of a material which is resistant to acids and heat, these threads being arranged transversely in relation to the streaming direction of the gases.
  • this element which causes a very little resistance to the stream of combustion gases, these gases are further heated to about 350 C. and are catalytically incinerated such that any remaining unpleasant smell will be completely eliminated.
  • FIG. 1 is a longitudinal section through an electric closet having an after-burner chamber situated between the combustion chamber of the electric closet and a fan aggregate,
  • FIG. 2 shows the after-burning combustion chamber in FIG. 1 on an enlarged scale
  • FIGS. 3 and 4 show the after-burning chamber according to the invention according to other embodiments also on an enlarged scale
  • FIG. 5 is a plan view of the combustion chamber and the fan aggregate of an electric closet having a filter inset according to the invention arranged behind the closet,
  • FIG. 6 shows a longitudinal section of the chimney to an electric closet having mounted above the chimney top two cones facing each other according to the invention
  • FIG. 7 shows a horizontal section through a combustion chamber having an after-burner chamber and a catalytic element according to the invention.
  • the electric closet comprises three main compartments, viz. a closet chair 1, a combustion chamber 2 and fan aggregate which in its turn comprises a fan 3 and a fan housing 4.
  • the fan aggregate 3, 4 is in communication with the interior of the combustion chamber 2 via an outlet tube 5 for combustion gases and 5 the gases formed at the incineration of the faeces in the combustion chamber are sucked out by the fan 3 through this outlet tube 5.
  • Each one of these heating rods 6 is at its inner end turned towards the heating chamber 2 provided with a fiange 8 which increases the ability of the heating rods to absorb heat from the combustion chamber. In this way the outlet tube 5 forms an after-burning chamber.
  • FIG. 3 there is as a heating element in the after-burner chamber arranged to tube element 9 helically found in or about the outlet tube 5.
  • This tube element 9 is electrically heated and thermostatically controlled such that the temperature of the after-burner chamber be kept at the correct level during the whole of the combustion period.
  • the after-burner chamber comprises as shown in FIG. 4 a tube 10 arranged in the combusion chamber wall 7, a sheet 11 being attached to the inner end of the tube turned towards the combustion chamber 2.
  • the sheet 11 serves the same purpose as the flanges 8 on the heating rods 6 described in the aforegoing, i.e. giving the tube 10 a possibility to absorb more heat from the combustion chamber 2.
  • Apertures 12 are arranged in the wall of the tube and the total surface of the apertures 12 is essentially equal to the outlet opening of the outlet tube 5.
  • FIG. 5 So as to ensure that all the unpleasant smell caused at the incineration of the faeces in the combustion chamber are annihilated during the passage of the combustion gases to the atmosphere there is preferably as shown in FIG. 5 provided a filter insert provided with carbon filters 14.
  • the filter insert 15 is mounted in the chimney tube 13 behind the electric closet. This filter 14 which comprises active carbon is passed through by the outlet combustion gases.
  • the different modifications described of the after-burning chamber have each a capacity to superheat the outlet gases from the combustion chamber 2 up to 300 C.
  • a catalytic element in the shape of a unit.
  • This catalytic element comprises a number of threads 19 which are arranged in cross-wise direction in an annular interstice 20 between two concentrical mantles 5 and 21.
  • the threads 19 are manufactured from an acid and heat resistant material, preferably an alloy of nickel (80%) and chronium (20%) which is provided with a coating of a noble metal such as platinum or palladium.
  • the after-burner chamber is arranged between the outer mantle 21 and the housing 22 enclosing the unit and comprises in this embodiment electrically heated elements 9 which which extend around the outer mantle which transfers heat from these elements 9 to the threads 19.
  • the mantle 21 transmits to the threads 19 also heat which it has absorbed directly from the combustion chamber 2.
  • An interstice 26 is formed between the filters 25 and the insulation 23.
  • the combustion gases further stream in the direction indicated by the arrows in FIG. 7 through apertures 27, 28, 29 in the housing 22, the mantle 21 and the mantle 5, respectively.
  • the apertures 28 in the outer mantle 21 are in the connection situated at the end of the mantle turned away from the combustion chamber wall 7 and the apertures 29 in the inner mantle at the end of this mantle turned towards the combustion chamber wall which means that the combustion gas stream is forced to change direction many a time during its passing through the after-burn r chamber 9 and the catalytic element 19. It is hereby obtained a heat exchange which means that the efiiciency at the catalytic combustion of the gases will be very high.
  • the threads 19 forming the catalytic element are preterably waved but may also be wound helically. They may also have a rectangular cross section, i.e. be shaped as a ribbon.
  • the catalytic threads 19 are preferably first mounted between the mantles 5 and 21 which are welded to the combustion chamber wall 7.
  • the resistance elements 9 of the after-burner chamber are then arranged about the outer mantle 21 and then the whole of the unit is enclosed in the housing 22 which preferably is attached by means of releasable connection 30 to the inner mantle 5 such that it be rendered possible to demount the unit for overhaul. cleaning and repair of the separated details.
  • the filter 14 may be arranged horizontally instead of vertically as shown in FIG. 5.
  • the after-burner chamber 6, 9, 10 may be shaped otherwise than acc rding to the modifications described.
  • the catalytic threads 19 may be shaped otherwise than described in the aforegoing.
  • a device for the elimination of unpleasant odors from electric closets comprising an upper and a lower compartment arranged one on the top of the other, said upper compartment comprising a closet chair 1 and said lower compartment comprising an electric combustion chamber 2 and a fan aggregate 3, 4, an after-burner chamber 6, 9, 10 located between said combustion chamber 2 and said fan aggregate 3, 4, said after-burner chamber incinerating finally and completely the substances exposed to incineration in said combustion chamber 2, a chimney tube 13 for combustion gases connected to said lower compartment, a cone 16 with its point directed downwards provided at the upper end of said chimney tube, a second cone 17 mounted on said first cone 16 having a base surface somewhat greater than the base surface of said first cone 16 for effectively distributing combustion gases in the atmosphere.
  • a device for the elimination of unpleasant odors from electric closets comprising an upper and a lower compartment arranged one on the top of the other, said upper compartment comprising a closet chair 1 and said lower compartment comprising an electric combustion chamber 2 and a fan aggregate 3, 4, an after-burner chamber 6, 9, 10 located between said combustion chamber 2 and said fan aggregate 3, 4, said after-burner chamber incinerating finally and completely the substances exposed to incineration in said combustion chamber 2, a catalytic element in said after-burner chamber arranged adjacent said combustion chamber 2, said catalytic element comprising a number of threads 19 made of an acid and heat resistant material and extending cross-wise to the streaming direction of the combustion gases, said threads 19 being arranged cross-wise in an annular interstice 20 between concentric mantles 5, 21, the inner one 5 of these concentrically arranged mantles 5, 21 being provided with openings 29 at its end turned towards said combustion chamber 2 and the outer one 21 of said mantles being provided with apertures 28 at its end turned away from said combustion chamber 2 so that the stream of combustion

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Incineration Of Waste (AREA)
US648555A 1966-06-29 1967-06-26 Device for elimination of unpleasant smell at electric closets Expired - Lifetime US3486174A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE883066 1966-06-29
SE658867 1967-05-11

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US3486174A true US3486174A (en) 1969-12-30

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US (1) US3486174A (da)
DE (1) DE1551830A1 (da)
DK (1) DK125768B (da)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694825A (en) * 1970-03-17 1972-10-03 Polar Ware Co Disposal of human waste by incineration
US3765035A (en) * 1972-07-12 1973-10-16 American Air Filter Co Disposal system for human waste
US3911506A (en) * 1971-04-16 1975-10-14 Jr James I West Incinerating commode
US3943579A (en) * 1974-02-25 1976-03-16 Research Products/Incinolet Corporation Incinerator toilet
US4051561A (en) * 1975-10-31 1977-10-04 Lake Geneva A & C Corporation Store and burn incinerating toilet and method
US4159547A (en) * 1977-12-07 1979-07-03 Research Products/Blankenship Corporation Incinerator urinal
US4205403A (en) * 1977-12-07 1980-06-03 Research Products/Blankenship Corporation Incinerator urinal
DE4102760A1 (de) * 1991-01-28 1992-08-06 Inst Schienenfahrzeuge Verbrennungstoilette fuer schienenfahrzeuge
WO2011132449A1 (ja) * 2010-04-21 2011-10-27 株式会社ディラック 電気焼却式便器及び電気焼却式便器の焼却制御方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855494A (en) * 1957-04-25 1958-10-07 Gen Electric Electric incinerator
US3020559A (en) * 1959-01-05 1962-02-13 Res Products Mfg Company Incinerator toilet
US3068812A (en) * 1959-05-07 1962-12-18 Wesley C L Hemeon Method and apparatus for incinerating combustible wastes
US3169497A (en) * 1961-12-26 1965-02-16 Blankenship Ernest Bayne Incinerator toilet
US3202118A (en) * 1963-02-21 1965-08-24 Baldine Joseph James Motor vehicle litter disposal
US3215501A (en) * 1962-02-02 1965-11-02 Salem Brosius Inc Apparatus for substantially completely oxidizing oxidizable components of efflux
US3219418A (en) * 1963-07-12 1965-11-23 Robert R La Marr Afterburner for inhibiting emission of smog from a combustion device
US3224842A (en) * 1963-01-10 1965-12-21 Minnesota Mining & Mfg Waste gas incinerating afterburners

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855494A (en) * 1957-04-25 1958-10-07 Gen Electric Electric incinerator
US3020559A (en) * 1959-01-05 1962-02-13 Res Products Mfg Company Incinerator toilet
US3068812A (en) * 1959-05-07 1962-12-18 Wesley C L Hemeon Method and apparatus for incinerating combustible wastes
US3169497A (en) * 1961-12-26 1965-02-16 Blankenship Ernest Bayne Incinerator toilet
US3215501A (en) * 1962-02-02 1965-11-02 Salem Brosius Inc Apparatus for substantially completely oxidizing oxidizable components of efflux
US3224842A (en) * 1963-01-10 1965-12-21 Minnesota Mining & Mfg Waste gas incinerating afterburners
US3202118A (en) * 1963-02-21 1965-08-24 Baldine Joseph James Motor vehicle litter disposal
US3219418A (en) * 1963-07-12 1965-11-23 Robert R La Marr Afterburner for inhibiting emission of smog from a combustion device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694825A (en) * 1970-03-17 1972-10-03 Polar Ware Co Disposal of human waste by incineration
US3911506A (en) * 1971-04-16 1975-10-14 Jr James I West Incinerating commode
US3765035A (en) * 1972-07-12 1973-10-16 American Air Filter Co Disposal system for human waste
US3943579A (en) * 1974-02-25 1976-03-16 Research Products/Incinolet Corporation Incinerator toilet
US4051561A (en) * 1975-10-31 1977-10-04 Lake Geneva A & C Corporation Store and burn incinerating toilet and method
US4205403A (en) * 1977-12-07 1980-06-03 Research Products/Blankenship Corporation Incinerator urinal
US4159547A (en) * 1977-12-07 1979-07-03 Research Products/Blankenship Corporation Incinerator urinal
DE4102760A1 (de) * 1991-01-28 1992-08-06 Inst Schienenfahrzeuge Verbrennungstoilette fuer schienenfahrzeuge
WO2011132449A1 (ja) * 2010-04-21 2011-10-27 株式会社ディラック 電気焼却式便器及び電気焼却式便器の焼却制御方法
JP2011224200A (ja) * 2010-04-21 2011-11-10 Dirac Inc 電気焼却式便器及び電気焼却式便器の焼却制御方法
CN102858217A (zh) * 2010-04-21 2013-01-02 株式会社迪拉克 电焚烧式便器及电焚烧式便器的焚烧控制方法
CN102858217B (zh) * 2010-04-21 2014-05-07 株式会社迪拉克 电焚烧式便器及电焚烧式便器的焚烧控制方法
US9265387B2 (en) 2010-04-21 2016-02-23 Dirac Inc. Electric incinerating toilet bowl and incineration control method for electric incinerating toilet bowl

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Publication number Publication date
DK125768B (da) 1973-04-30
DE1551830A1 (de) 1970-04-23

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