IL130793A - A device for mixing and aerating a liquid and removing foam from a liquid treatment tank - Google Patents

A device for mixing and aerating a liquid and removing foam from a liquid treatment tank

Info

Publication number
IL130793A
IL130793A IL13079397A IL13079397A IL130793A IL 130793 A IL130793 A IL 130793A IL 13079397 A IL13079397 A IL 13079397A IL 13079397 A IL13079397 A IL 13079397A IL 130793 A IL130793 A IL 130793A
Authority
IL
Israel
Prior art keywords
liquid
sheath
propeller
tank
hand
Prior art date
Application number
IL13079397A
Other languages
English (en)
Hebrew (he)
Other versions
IL130793A0 (en
Inventor
Alain Boulant
Original Assignee
Carbofil Internat
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carbofil Internat filed Critical Carbofil Internat
Publication of IL130793A0 publication Critical patent/IL130793A0/xx
Publication of IL130793A publication Critical patent/IL130793A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/22Activated sludge processes using circulation pipes
    • C02F3/226"Deep shaft" processes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/46Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
    • A61K8/466Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur containing sulfonic acid derivatives; Salts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • A61Q19/10Washing or bathing preparations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00Preparations for care of the hair
    • A61Q5/02Preparations for cleaning the hair
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105Arrangement or manipulation of the gas bubbling devices
    • B01F23/2311Mounting the bubbling devices or the diffusers
    • B01F23/23112Mounting the bubbling devices or the diffusers comprising the use of flow guiding elements adjacent or above the gas stream
    • B01F23/231122Mounting the bubbling devices or the diffusers comprising the use of flow guiding elements adjacent or above the gas stream the flow guiding elements being dome-shaped elements, i.e. for trapping air, e.g. cap-, umbrella- or inversed cone-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2334Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer
    • B01F23/23341Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer with tubes surrounding the stirrer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2336Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer
    • B01F23/23362Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer the gas being introduced under the stirrer
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K23/00Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K23/00Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • C09K23/16Amines or polyamines
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/04Carboxylic acids or salts thereof
    • C11D1/10Amino carboxylic acids; Imino carboxylic acids; Fatty acid condensates thereof
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/12Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/28Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/34Derivatives of acids of phosphorus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05Stirrers
    • B01F27/11Stirrers characterised by the configuration of the stirrers
    • B01F27/113Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/12Prevention of foaming
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage
IL13079397A 1997-01-08 1997-12-30 A device for mixing and aerating a liquid and removing foam from a liquid treatment tank IL130793A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9700116A FR2758094B1 (fr) 1997-01-08 1997-01-08 Dispositif de brassage et d'aeration d'un liquide et d'elimination de la mousse dans une cuve de traitement de ce liquide
PCT/FR1997/002463 WO1998030319A1 (fr) 1997-01-08 1997-12-30 Dispositif de brassage et d'aeration d'un liquide et d'elimination de la mousse dans une cuve de traitement de ce liquide

Publications (2)

Publication Number Publication Date
IL130793A0 IL130793A0 (en) 2001-01-28
IL130793A true IL130793A (en) 2002-12-01

Family

ID=9502440

Family Applications (1)

Application Number Title Priority Date Filing Date
IL13079397A IL130793A (en) 1997-01-08 1997-12-30 A device for mixing and aerating a liquid and removing foam from a liquid treatment tank

Country Status (36)

Country Link
EP (1) EP0954373B1 (de)
JP (1) JP3651806B2 (de)
KR (1) KR100488114B1 (de)
CN (1) CN1090050C (de)
AR (1) AR011367A1 (de)
AT (1) ATE265263T1 (de)
AU (1) AU720825B2 (de)
BG (1) BG64414B1 (de)
BR (1) BR9714271A (de)
CA (1) CA2276760C (de)
CO (1) CO4761080A1 (de)
CU (1) CU22785A3 (de)
CZ (1) CZ297858B6 (de)
DE (1) DE69728905T2 (de)
DK (1) DK0954373T3 (de)
EA (1) EA000959B1 (de)
EE (1) EE04709B1 (de)
ES (1) ES2216185T3 (de)
FR (1) FR2758094B1 (de)
GE (1) GEP20012491B (de)
HK (1) HK1023082A1 (de)
HU (1) HU222517B1 (de)
ID (1) ID22295A (de)
IL (1) IL130793A (de)
IS (1) IS5112A (de)
NO (1) NO320784B1 (de)
NZ (1) NZ336646A (de)
PE (1) PE15099A1 (de)
PL (1) PL186826B1 (de)
PT (1) PT954373E (de)
SK (1) SK285345B6 (de)
TR (1) TR199901607T2 (de)
UA (1) UA46884C2 (de)
WO (1) WO1998030319A1 (de)
YU (1) YU49448B (de)
ZA (1) ZA9866B (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6386751B1 (en) 1997-10-24 2002-05-14 Diffusion Dynamics, Inc. Diffuser/emulsifier
US6702949B2 (en) 1997-10-24 2004-03-09 Microdiffusion, Inc. Diffuser/emulsifier for aquaculture applications
JP2002035784A (ja) * 2000-07-21 2002-02-05 Mitsui Mining Co Ltd 攪拌曝気装置
FR2823742B1 (fr) * 2001-04-19 2004-03-12 Alain Boulant Dispositif pour brasser et aerer un liquide dans une cuve de traitement
FR2823743B1 (fr) * 2001-04-19 2004-03-12 Alain Boulant Dispositif pour brasser et aerer un liquide dans une cuve de traitement
WO2003011774A1 (de) * 2001-07-28 2003-02-13 Moeller Gerhard Belüfter für gewässer
FR2839898B1 (fr) * 2002-05-23 2004-08-13 Vor Environnement Dispositif d'aeration et de brassage d'eaux usees dans un reacteur de traitement, son utilisation pour l'epuration des eaux usees et son utilisation en tant que fermenteur
AU2007308838B2 (en) 2006-10-25 2014-03-13 Revalesio Corporation Mixing device and output fluids of same
AU2007308840C1 (en) 2006-10-25 2014-09-25 Revalesio Corporation Methods of therapeutic treatment of eyes and other human tissues using an oxygen-enriched solution
US8445546B2 (en) 2006-10-25 2013-05-21 Revalesio Corporation Electrokinetically-altered fluids comprising charge-stabilized gas-containing nanostructures
JP4716039B2 (ja) * 2007-05-15 2011-07-06 Jfeエンジニアリング株式会社 矩形の攪拌反応槽
US9745567B2 (en) 2008-04-28 2017-08-29 Revalesio Corporation Compositions and methods for treating multiple sclerosis
US10125359B2 (en) 2007-10-25 2018-11-13 Revalesio Corporation Compositions and methods for treating inflammation
US9523090B2 (en) 2007-10-25 2016-12-20 Revalesio Corporation Compositions and methods for treating inflammation
EP2285347A4 (de) 2008-05-01 2011-09-21 Revalesio Corp Zusammensetzungen und verfahren zur behandlung von erkrankungen des verdauungssystems
US20100058933A1 (en) * 2008-09-11 2010-03-11 Cheng Peter S Wine aerator
US8815292B2 (en) 2009-04-27 2014-08-26 Revalesio Corporation Compositions and methods for treating insulin resistance and diabetes mellitus
US8783637B2 (en) * 2010-04-19 2014-07-22 Cheese & Whey Systems, Inc. Temporary shaft support system
BR112012028540A2 (pt) 2010-05-07 2016-07-26 Revalesio Corp composições e métodos para melhorar desempenho fisiológico e tempo de recuperação
DE102010023832A1 (de) * 2010-06-10 2011-12-15 Sig Technology Ag Vorrichtung und Verfahren zur Bevorratung von Produkten
AU2011289172B2 (en) 2010-08-12 2015-09-24 Revalesio Corporation Compositions and methods for treatment of taupathy
CN104130398B (zh) * 2013-05-01 2018-08-28 英威达纺织(英国)有限公司 在聚合过程中减少搅拌高压釜中的起泡的方法
US20150076079A1 (en) * 2013-09-18 2015-03-19 Alstom Technology Ltd Method and system for seawter foam control
CN103952888B (zh) * 2014-05-17 2015-12-16 杭州金拇指服装辅料有限公司 一种无纺布染色生产线的染缸
IT201800010022A1 (it) * 2018-11-05 2020-05-05 Giuseppe Chitarra Impianto di ossidazione per acque reflue
CN109569348B (zh) * 2018-11-12 2021-03-05 大同新成新材料股份有限公司 一种锂电池电解液生产用混合装置及方法
CN110433719B (zh) * 2019-07-25 2022-04-12 成都海蓉特种纺织品有限公司 一种消泡式搅拌装置
WO2022015843A1 (en) * 2020-07-14 2022-01-20 Jacobi Robert W Water and wastewater conditioning apparatus
CN113477111B (zh) * 2021-07-27 2023-02-10 微纳气泡(浙江)智能科技有限公司 一种由内向外顶推加压的溶气装置及使用方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3781504T2 (de) * 1986-10-21 1993-01-07 Union Carbide Corp Verfahren und vorrichtung zum mischen von gasen und fluessigkeiten.
US5300261A (en) * 1992-11-12 1994-04-05 Richard Von Berg Liquid aerating apparatus
DE9302204U1 (de) * 1993-02-16 1993-07-15 Juengling, Harry, 6466 Gruendau, De
FR2721229B1 (fr) * 1994-06-16 1996-09-06 Cise Internationale Dispositif d'aération et de brassage d'un liquide comme par exemple les effluents graisseux.

Also Published As

Publication number Publication date
TR199901607T2 (xx) 1999-11-22
NO993330L (no) 1999-07-05
EP0954373B1 (de) 2004-04-28
ATE265263T1 (de) 2004-05-15
SK91199A3 (en) 1999-12-10
SK285345B6 (sk) 2006-11-03
EP0954373A1 (de) 1999-11-10
DE69728905T2 (de) 2005-06-02
EA000959B1 (ru) 2000-08-28
DE69728905D1 (de) 2004-06-03
UA46884C2 (uk) 2002-06-17
CA2276760A1 (en) 1998-07-16
BG103583A (en) 2000-02-29
EE04709B1 (et) 2006-10-16
BG64414B1 (bg) 2005-01-31
HUP0001223A3 (en) 2000-10-30
YU49448B (sh) 2006-03-03
CZ297858B6 (cs) 2007-04-18
CN1090050C (zh) 2002-09-04
AR011367A1 (es) 2000-08-16
NO993330D0 (no) 1999-07-05
ES2216185T3 (es) 2004-10-16
AU720825B2 (en) 2000-06-15
EA199900610A1 (ru) 2000-04-24
WO1998030319A1 (fr) 1998-07-16
FR2758094A1 (fr) 1998-07-10
ZA9866B (en) 1999-07-06
DK0954373T3 (da) 2004-07-26
CA2276760C (en) 2007-06-19
NZ336646A (en) 2000-07-28
PE15099A1 (es) 1999-05-14
KR20000069910A (ko) 2000-11-25
GEP20012491B (en) 2001-07-25
PL334630A1 (en) 2000-03-13
CN1244135A (zh) 2000-02-09
BR9714271A (pt) 2000-04-18
PT954373E (pt) 2004-07-30
CU22785A3 (es) 2002-07-24
CO4761080A1 (es) 1999-04-27
IS5112A (is) 1999-07-07
HUP0001223A2 (hu) 2000-08-28
AU5770398A (en) 1998-08-03
YU32199A (sh) 2000-12-28
ID22295A (id) 1999-09-30
IL130793A0 (en) 2001-01-28
NO320784B1 (no) 2006-01-30
HK1023082A1 (en) 2000-09-01
HU222517B1 (hu) 2003-08-28
EE9900271A (et) 2000-02-15
CZ238399A3 (cs) 2000-01-12
JP2001507623A (ja) 2001-06-12
KR100488114B1 (ko) 2005-05-09
JP3651806B2 (ja) 2005-05-25
FR2758094B1 (fr) 1999-03-26
PL186826B1 (pl) 2004-03-31

Similar Documents

Publication Publication Date Title
CA2276760C (en) Device for stirring and aerating a liquid and eliminating the foam in a vat for treating this liquid
KR100512089B1 (ko) 고속 고효율 폭기장치
US6460830B1 (en) Device for stirring and aerating a liquid and eliminating foam in a tank for treating said liquid
AU632781B2 (en) Mixing device
ZA200605188B (en) Submersibly operable high volume and low pressure liquid transfer equipment
US7744679B2 (en) Liquid—foam system
CA2443943C (en) Device for stirring and aerating a liquid in a treatment vessel
CA2443684C (en) Device for stirring and aerating a liquid in a treatment vessel
CA2808982A1 (en) Wastewater treatment apparatus
EP0027911B1 (de) Vorrichtung zum Begasen einer Flüssigkeit
US3682313A (en) Apparatus for the biological purification of waste water
US8877045B1 (en) Water treatment apparatus
US3567021A (en) Waste treatment system
CA1283983C (en) Side channel clarifier
KR100997446B1 (ko) 미세 기포발생기 및 그를 구비한 오폐수처리시설
MXPA99006406A (en) Device for stirring and aerating a liquid and eliminating the foam in a vat for treating this liquid
GB1595408A (en) Activated sludge sewage treatment plant
PL166861B1 (pl) Urządzenie do natleniania, mieszania oraz wywoływania ukierunkowanego przepływu cieczy
CZ293722B6 (cs) Provzdušovací vrtulové čerpadlo

Legal Events

Date Code Title Description
FF Patent granted
FF Patent granted
KB Patent renewed
KB Patent renewed
KB Patent renewed
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees