GB2115305B - Fuel filter - Google Patents

Fuel filter

Info

Publication number
GB2115305B
GB2115305B GB08300812A GB8300812A GB2115305B GB 2115305 B GB2115305 B GB 2115305B GB 08300812 A GB08300812 A GB 08300812A GB 8300812 A GB8300812 A GB 8300812A GB 2115305 B GB2115305 B GB 2115305B
Authority
GB
United Kingdom
Prior art keywords
fuel filter
fuel
filter
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB08300812A
Other versions
GB2115305A (en
GB8300812D0 (en
Inventor
Michael E Wilson
David R Olson
Walter H Stone
Robin B Macdonald
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Racor Industries Inc
Original Assignee
Racor Industries Inc
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 Racor Industries Inc filed Critical Racor Industries Inc
Publication of GB8300812D0 publication Critical patent/GB8300812D0/en
Publication of GB2115305A publication Critical patent/GB2115305A/en
Application granted granted Critical
Publication of GB2115305B publication Critical patent/GB2115305B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/16—Feeding by means of driven pumps characterised by provision of personally-, e.g. manually-, operated pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B01D17/0211—Separation of non-miscible liquids by sedimentation with baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/04—Breaking emulsions
    • B01D17/045—Breaking emulsions with coalescers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/08—Thickening liquid suspensions by filtration
    • B01D17/10—Thickening liquid suspensions by filtration with stationary filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/114—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/117—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
    • B01D29/902—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding containing fixed liquid displacement elements or cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/143—Filter condition indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/153—Anti-leakage or anti-return valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/18—Heating or cooling the filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/26—Filters with built-in pumps filters provided with a pump mounted in or on the casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/003—Filters in combination with devices for the removal of liquids
    • B01D36/005—Liquid level sensing means, e.g. for water in gasoil-filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/003—Filters in combination with devices for the removal of liquids
    • B01D36/006—Purge means
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G33/00—Dewatering or demulsification of hydrocarbon oils
    • C10G33/06—Dewatering or demulsification of hydrocarbon oils with mechanical means, e.g. by filtration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/24—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means
    • F02M37/26—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means
    • F02M37/28—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means with means activated by the presence of water, e.g. alarms or means for automatic drainage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/44—Filters structurally associated with pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Filtration Of Liquid (AREA)
GB08300812A 1982-02-24 1983-01-13 Fuel filter Expired GB2115305B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35176182A 1982-02-24 1982-02-24

Publications (3)

Publication Number Publication Date
GB8300812D0 GB8300812D0 (en) 1983-02-16
GB2115305A GB2115305A (en) 1983-09-07
GB2115305B true GB2115305B (en) 1986-01-22

Family

ID=23382264

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08300812A Expired GB2115305B (en) 1982-02-24 1983-01-13 Fuel filter

Country Status (8)

Country Link
JP (2) JPS58156317A (en)
BR (1) BR8300768A (en)
CA (1) CA1190865A (en)
DE (2) DE3306294A1 (en)
FR (1) FR2522525B1 (en)
GB (1) GB2115305B (en)
IT (1) IT1161013B (en)
MX (1) MX162260A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108555770A (en) * 2018-05-22 2018-09-21 徐州腾睿智能装备有限公司 A kind of fuel tank equipment for separating liquid from solid in carbon tetrachloride precipitation block end grinding device

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US4502955A (en) * 1983-04-14 1985-03-05 Racor Industries, Inc. Filter assembly
JPS6018261U (en) * 1983-07-15 1985-02-07 マツダ株式会社 diesel engine fuel filter
US4602605A (en) * 1984-02-06 1986-07-29 Adkins James L Entering fuel injection system of a diesel engine
US4579653A (en) * 1984-08-17 1986-04-01 Davco Manufacturing Corporation Side-by-side fuel processor apparatus
US5547572A (en) * 1985-05-14 1996-08-20 Parker Hannifin Corporation Fuel Filter
US4668393A (en) * 1985-05-14 1987-05-26 Parker-Hannifin Corporation Semipermeable baffle fuel filter
JPS6254273U (en) * 1985-09-24 1987-04-03
IT210843Z2 (en) * 1987-03-31 1989-01-11 Iveco Fiat GROUP FOR THE TREATMENT OF THE FUEL OF A DIESEL ENGINE
JPH0623360B2 (en) * 1987-10-23 1994-03-30 日本製紙株式会社 Adhesive resin composition
DE3816303A1 (en) * 1988-05-13 1989-11-23 Hengst Walter Gmbh & Co Kg Water-separation apparatus
US5236579A (en) * 1991-08-22 1993-08-17 Stanadyne Automotive Corp. Fuel filter assembly with modular drain bowl
DE4239099C2 (en) * 1992-11-20 2001-02-15 Mahle Filtersysteme Gmbh Fuel filter
DE4400397C2 (en) * 1993-01-28 1998-10-08 Huels Chemische Werke Ag Method for detecting the presence of one or more phases that are in a main phase
DE4331467A1 (en) * 1993-09-16 1995-03-23 Knecht Filterwerke Gmbh Fuel filter
FR2714117B1 (en) * 1993-12-22 1996-03-01 Labinal Improvements to engine liquid filter housings.
DE4344586A1 (en) * 1993-12-24 1995-06-29 Knecht Filterwerke Gmbh Diesel fuel filter
US5592201A (en) * 1994-04-28 1997-01-07 Hewlett-Packard Company Manual priming pump for inkjet printing mechanisms
FR2723616B1 (en) * 1994-08-09 1996-09-20 Bouetard Freres FILTRATION DEVICE FOR A DIESEL ENGINE.
DE4442148A1 (en) * 1994-11-26 1996-05-30 Knecht Filterwerke Gmbh Oil filter
DE69709567T2 (en) * 1996-05-03 2002-08-08 Delphi Technologies, Inc. Mounting head for filters
US5783078A (en) * 1996-10-12 1998-07-21 Dana Corporation Fuel/water separator filter without flow diverters and method of making same
DE19955206A1 (en) * 1999-11-17 2001-07-05 Mann & Hummel Filter Fuel filter
EP1274932B8 (en) * 2000-04-18 2007-06-27 ixetic Bad Homburg GmbH Pump
JP2002224503A (en) * 2001-02-02 2002-08-13 Wako Industrial Co Ltd Fluid-water separator
DE10308427B4 (en) * 2003-02-27 2016-07-07 Mann + Hummel Gmbh fuel
WO2004082804A1 (en) * 2003-03-21 2004-09-30 Mann+Hummel Gmbh Fuel filtering system
ITRE20040158A1 (en) * 2004-12-27 2005-03-27 Ufi Filters Spa FILTER UNIT WITH DOUBLE ACTION FOR FUEL
DE102005005848A1 (en) * 2005-02-08 2006-08-10 Mann + Hummel Gmbh Filter system for fuel
DE102005015194A1 (en) * 2005-04-02 2006-10-05 Mahle International Gmbh Fuel filter, with two filter layers, has a water collection zone in the hollow zone between and under the layers and a second lower zone for water collection is at the hollow zone upstream of the outer filter layer
ITRE20050095A1 (en) * 2005-07-29 2007-01-30 Ufi Filters Spa COMBINED FUEL FILTER
FR2910069B1 (en) * 2006-12-13 2009-04-03 Peugeot Citroen Automobiles Sa FUEL FILTER, SUCH AS GASOLINE, SUPPLYING AN INTERNAL COMBUSTION ENGINE OF A VEHICLE
JP4892407B2 (en) * 2007-05-24 2012-03-07 ヤマシンフィルタ株式会社 Filtration equipment, tank equipment
US8241493B2 (en) * 2008-06-16 2012-08-14 Baldwin Filters, Inc. Filter with ejection mechanism
DE102009025393B4 (en) * 2009-06-16 2011-03-31 Mann+Hummel Gmbh 3-stage fuel filter
DE102009047827A1 (en) * 2009-09-30 2011-03-31 Mahle International Gmbh filtering device
JP2013151888A (en) * 2012-01-24 2013-08-08 Denso Corp Fuel filter
JP5841006B2 (en) * 2012-05-24 2016-01-06 株式会社日本自動車部品総合研究所 Fuel filtration device
ITRE20120066A1 (en) * 2012-10-11 2014-04-12 Ufi Filters Spa FILTERING CARTRIDGE EQUIPPED WITH MEANS FOR PURGE OF WATER AND RELATIVE FILTERING UNIT
WO2014094794A1 (en) * 2012-12-21 2014-06-26 Greenoil Standard Aps Coalescer vessel for separating water from liquid hydrocarbons
DE102016013166A1 (en) * 2016-11-04 2018-05-09 Hydac Filter Systems Gmbh filter element
DE102019119302A1 (en) * 2019-07-16 2021-01-21 Norma Germany Gmbh Drainage nozzle for the separate discharge of liquids of different densities
CN111624122A (en) * 2020-05-20 2020-09-04 上海巨乾工贸有限公司 Wear detection device for bearing bush

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US2524336A (en) * 1945-03-16 1950-10-03 Vokes Ltd Filter
FR1491286A (en) * 1966-04-26 1967-08-11 Sigma Improvements in liquid fuel supply devices for internal combustion engines
US4091265A (en) * 1975-08-06 1978-05-23 Racor Industries, Inc. Fuel filter heating assembly
GB1565299A (en) * 1977-04-05 1980-04-16 Dahl Mfg Inc Filter device for diesel engines
DE2845520C2 (en) * 1978-10-19 1987-03-26 Robert Bosch Gmbh, 7000 Stuttgart Screw-on filter unit for liquids, especially diesel fuel
US4253954A (en) * 1979-07-02 1981-03-03 Nelson Industries, Inc. Two-stage spin-on separating device
IT8167809A0 (en) 1980-06-23 1981-06-11 Chicago Rawhide Mfg Co DEVICE FOR THE REMOVAL OF CONTAMINATING SUBSTANCES FROM A FLUID

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108555770A (en) * 2018-05-22 2018-09-21 徐州腾睿智能装备有限公司 A kind of fuel tank equipment for separating liquid from solid in carbon tetrachloride precipitation block end grinding device

Also Published As

Publication number Publication date
CA1190865A (en) 1985-07-23
JPS6363006B2 (en) 1988-12-06
BR8300768A (en) 1983-11-16
IT1161013B (en) 1987-03-11
JPS6456110A (en) 1989-03-03
GB2115305A (en) 1983-09-07
JPS58156317A (en) 1983-09-17
DE3348166C2 (en) 1990-06-13
FR2522525B1 (en) 1989-04-07
MX162260A (en) 1991-04-18
FR2522525A1 (en) 1983-09-09
DE3306294C2 (en) 1987-10-01
GB8300812D0 (en) 1983-02-16
DE3306294A1 (en) 1983-09-01
JPH0210685B2 (en) 1990-03-09
IT8319656A0 (en) 1983-02-18

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20030112