BR9714581A - Método e aparelho para a construção de pneumáticos em um molde de pneumático aperfeiçoado. - Google Patents
Método e aparelho para a construção de pneumáticos em um molde de pneumático aperfeiçoado.Info
- Publication number
- BR9714581A BR9714581A BR9714581-5A BR9714581A BR9714581A BR 9714581 A BR9714581 A BR 9714581A BR 9714581 A BR9714581 A BR 9714581A BR 9714581 A BR9714581 A BR 9714581A
- Authority
- BR
- Brazil
- Prior art keywords
- tire
- mold
- construction
- tire mold
- tires
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/0005—Pretreatment of tyres or parts thereof, e.g. preheating, irradiation, precuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0602—Vulcanising tyres; Vulcanising presses for tyres the vulcanising medium being in direct contact with the tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0662—Accessories, details or auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C5/00—Inflatable pneumatic tyres or inner tubes
- B60C5/12—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim
- B60C5/14—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim with impervious liner or coating on the inner wall of the tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0606—Vulcanising moulds not integral with vulcanising presses
- B29D2030/0607—Constructional features of the moulds
- B29D2030/062—Means for sealing the tyre against the mould in the bead areas
- B29D2030/0621—Means for sealing the tyre against the mould in the bead areas to seal the bead portions against the mould i.e. by using pressing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0606—Vulcanising moulds not integral with vulcanising presses
- B29D2030/0607—Constructional features of the moulds
- B29D2030/062—Means for sealing the tyre against the mould in the bead areas
- B29D2030/0621—Means for sealing the tyre against the mould in the bead areas to seal the bead portions against the mould i.e. by using pressing devices
- B29D2030/0623—Means for sealing the tyre against the mould in the bead areas to seal the bead portions against the mould i.e. by using pressing devices the pressing devices being flexible, e.g. annular elements being relatively elastic and deformable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0606—Vulcanising moulds not integral with vulcanising presses
- B29D2030/0607—Constructional features of the moulds
- B29D2030/062—Means for sealing the tyre against the mould in the bead areas
- B29D2030/0621—Means for sealing the tyre against the mould in the bead areas to seal the bead portions against the mould i.e. by using pressing devices
- B29D2030/0627—Means for sealing the tyre against the mould in the bead areas to seal the bead portions against the mould i.e. by using pressing devices the pressing devices being ring-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
- B29D2030/0682—Inner liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/24—Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
- B29K2105/243—Partially cured
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Tyre Moulding (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
"MéTODO E APARELHO PARA A CONSTRUçãO DE PNEUMáTICOS EM UM MOLDE DE PNEUMáTICO APERFEIçOADO". A invenção refere-se à fabricação de um pneumático (10) no molde de pneumático se câmara (12) que incorpora os anéis de vedação (16, 18, 70) que permitem que o penumático (10) seja instalado fácil e rapidamente dentro do molde de pneumático (12) de maneira tal que o gás ou fluido pressurizado empregado para inflar e vulcanizar o pneumático (10) não vaze em torno das seções do talão de pneumático (44, 46) do pneumático (1) e escape para a cavidade do molde (60). Um método aperfeiçoado de montagem do pneumático (10) no molde de pneumático sem câmara (12) permite que o pneumático (10) seja carregado e descarregado rápida e facilmente do molde de pneumático (12) sem a necessidade de mover qualquer peça do molde para dentro ou fora do espaço entre as seções do talão do pneumático (44, 46).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1997/004859 WO1998042499A1 (en) | 1997-03-25 | 1997-03-25 | Vulcanized innerliner and method of utilizing the same for pneumatic tyres |
PCT/US1997/023005 WO1998042498A1 (en) | 1997-03-25 | 1997-12-03 | Method and apparatus for building pneumatic tires in an improved tire mold |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9714581A true BR9714581A (pt) | 2000-03-08 |
Family
ID=22260591
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9714580-7A BR9714580A (pt) | 1997-03-25 | 1997-03-25 | Revestimento interno vulcanizado e método de utilização do mesmo para pneumático |
BR9714581-5A BR9714581A (pt) | 1997-03-25 | 1997-12-03 | Método e aparelho para a construção de pneumáticos em um molde de pneumático aperfeiçoado. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9714580-7A BR9714580A (pt) | 1997-03-25 | 1997-03-25 | Revestimento interno vulcanizado e método de utilização do mesmo para pneumático |
Country Status (23)
Country | Link |
---|---|
US (1) | US6277317B1 (pt) |
EP (2) | EP1027210A1 (pt) |
JP (2) | JP2001526604A (pt) |
KR (2) | KR20010005698A (pt) |
CN (1) | CN1121939C (pt) |
AR (1) | AR012177A1 (pt) |
AT (1) | ATE224295T1 (pt) |
AU (2) | AU718004B2 (pt) |
BR (2) | BR9714580A (pt) |
CA (2) | CA2283884A1 (pt) |
DE (1) | DE69715688T2 (pt) |
ES (1) | ES2183228T3 (pt) |
HU (1) | HUP0000699A3 (pt) |
ID (1) | ID20130A (pt) |
IL (2) | IL131844A0 (pt) |
MY (1) | MY128572A (pt) |
NO (2) | NO994641L (pt) |
NZ (1) | NZ337464A (pt) |
PL (2) | PL335840A1 (pt) |
TR (2) | TR199902228T2 (pt) |
TW (1) | TW436434B (pt) |
WO (2) | WO1998042499A1 (pt) |
ZA (1) | ZA982075B (pt) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0976534B1 (en) * | 1998-07-31 | 2003-10-01 | PIRELLI PNEUMATICI Società per Azioni | A process for manufacturing, moulding and curing tyres for vehicle wheels |
US6409959B1 (en) | 1998-07-31 | 2002-06-25 | Pirelli Pneumatici S.P.A. | Process for manufacturing, moulding and curing tires for vehicle wheels |
AU1608299A (en) * | 1998-11-25 | 2000-06-13 | Goodyear Tire And Rubber Company, The | Hot forming system to produce pre-cured innerliners |
JP4409814B2 (ja) * | 2001-09-26 | 2010-02-03 | 横浜ゴム株式会社 | 粘着シーラント層を備えた空気入りタイヤおよびその製造方法 |
KR20030050422A (ko) * | 2001-12-18 | 2003-06-25 | 한국타이어 주식회사 | 타이어용 가류금형 |
JP4056290B2 (ja) * | 2002-04-30 | 2008-03-05 | 株式会社ブリヂストン | 空気入りタイヤの製造方法および装置 |
US8114335B2 (en) * | 2002-12-30 | 2012-02-14 | The Goodyear Tire & Rubber Company | Partial depth-wise cure of a tire inner liner |
JPWO2004110735A1 (ja) * | 2003-06-13 | 2006-07-20 | 横浜ゴム株式会社 | タイヤ構成部材の供給方法 |
US20060037382A1 (en) * | 2004-08-18 | 2006-02-23 | Falchi Mauro C | Method and apparatus to detect leaks in expansion vessel |
JP4716282B2 (ja) * | 2005-12-14 | 2011-07-06 | 住友ゴム工業株式会社 | タイヤ用のモールド及びタイヤ製造方法 |
JP5061699B2 (ja) * | 2007-03-02 | 2012-10-31 | 横浜ゴム株式会社 | 空気入りタイヤ |
US8105062B2 (en) * | 2007-03-13 | 2012-01-31 | Curing Concepts, Inc. | Systems and methods for bladderless tire curing |
WO2009001722A1 (ja) * | 2007-06-27 | 2008-12-31 | Bridgestone Corporation | 未加硫タイヤの製造方法及び装置 |
JP2010137820A (ja) * | 2008-12-15 | 2010-06-24 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ及びその製造方法 |
CN101596791B (zh) * | 2009-07-03 | 2012-09-05 | 武汉天马人和科技有限公司 | 平式轮辋用无内胎充气轮胎的制造方法 |
DE212011100124U1 (de) * | 2010-07-26 | 2013-06-06 | Andrey Vladimirovich FIODOROV | Heizpresse zur Vulkanisierung von Mänteln pneumatischer Reifen |
JP5010017B2 (ja) * | 2010-08-10 | 2012-08-29 | 住友ゴム工業株式会社 | 空気入りタイヤの製造方法及び成形装置 |
JP5278493B2 (ja) * | 2011-05-27 | 2013-09-04 | 横浜ゴム株式会社 | 空気入りタイヤの製造方法 |
US8535031B2 (en) * | 2012-02-14 | 2013-09-17 | Bridgestone Americas Tire Operations, Llc | Pneumatic tire mold adapter |
JP6062685B2 (ja) * | 2012-08-28 | 2017-01-18 | 東洋ゴム工業株式会社 | 空気入りタイヤの製造方法 |
US20140069573A1 (en) * | 2012-09-13 | 2014-03-13 | The Goodyear Tire & Rubber Company | Method for preforming a green tire |
US8807976B1 (en) * | 2012-09-13 | 2014-08-19 | The Goodyear Tire & Rubber Company | Tire bead area rotation apparatus |
FR3064526A1 (fr) | 2017-03-30 | 2018-10-05 | Compagnie Generale Des Etablissements Michelin | Membrane et procede de cuisson de pneumatique |
CN108274792B (zh) * | 2018-04-04 | 2020-05-22 | 山东豪迈机械科技股份有限公司 | 一种密封装置及抽真空轮胎模具 |
CN112976631A (zh) * | 2021-01-28 | 2021-06-18 | 山东玲珑轮胎股份有限公司 | 一种硫化机夹持装置及夹持方法 |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1406433A (en) * | 1922-02-14 | Island | ||
US1942797A (en) * | 1931-10-22 | 1934-01-09 | Gen Tire & Rubber Co | Method of preparing tire casings for vulcanization |
US1982674A (en) | 1932-04-04 | 1934-12-04 | Laurits A Laursen | Sealing ring for tire casings |
US1952424A (en) | 1932-05-21 | 1934-03-27 | Wingfoot Corp | Sealing ring and method of building same |
BE537461A (pt) * | 1950-09-13 | |||
US2905220A (en) | 1953-05-13 | 1959-09-22 | Firestone Tire & Rubber Co | Self sealing pneumatic tire |
US2741295A (en) | 1953-08-27 | 1956-04-10 | Us Rubber Co | Method of making a tubeless tire |
US2752978A (en) | 1953-10-23 | 1956-07-03 | Us Rubber Co | Tubeless pneumatic tire and method of making same |
BE543506A (pt) | 1954-12-23 | |||
US3143449A (en) | 1958-11-20 | 1964-08-04 | Firestone Tire & Rubber Co | Tubed innerliner for bagless cured tires |
US3184794A (en) * | 1961-07-13 | 1965-05-25 | Morris A Sherkin | Sealing apparatus for tires |
BE643498A (pt) * | 1963-02-16 | 1964-05-29 | ||
US3933566A (en) | 1969-07-02 | 1976-01-20 | Mildred Kelley Seiberling | Tires, etc. |
US3659975A (en) | 1970-08-17 | 1972-05-02 | Uniroyal Englebert France | Bagless tire press |
JPS521522B1 (pt) | 1971-06-12 | 1977-01-14 | ||
US4181483A (en) * | 1971-06-16 | 1980-01-01 | Semperit Aktiengesellschaft | Apparatus for the bellowless vulcanization of tire blanks |
JPS5119475B2 (pt) | 1972-02-01 | 1976-06-17 | ||
DE2303853A1 (de) * | 1972-02-08 | 1973-08-16 | Semperit Gmbh | Verfahren und vorrichtung zum balglosen vulkanisieren von reifenrohlingen |
US4166883A (en) | 1973-01-05 | 1979-09-04 | Mildred Kelley Seiberling | Tires with liners cured by irradiation |
US4022554A (en) | 1975-04-16 | 1977-05-10 | Macmillan Mold Company | Retread molds |
CH640457A5 (de) * | 1979-05-28 | 1984-01-13 | Schiesser Ag | Verfahren und vorrichtung zur bildung der inneren wandteile von fahrzeugreifen. |
US4263074A (en) | 1979-06-25 | 1981-04-21 | Harold H. Vischer | Tire liner and method of preparation |
US4303114A (en) | 1979-06-25 | 1981-12-01 | Price Donald Rex | Method for the construction of improved tire liners |
CA1189662A (en) * | 1981-03-26 | 1985-07-02 | Kazumasa Sarumaru | Apparatus and method for vulcanizing a tire |
JPS5993344A (ja) * | 1982-11-19 | 1984-05-29 | Bridgestone Corp | タイヤ成形装置 |
US4604714A (en) | 1983-11-08 | 1986-08-05 | Westinghouse Electric Corp. | Steam optimization and cogeneration system and method |
DE3442746A1 (de) | 1984-11-23 | 1986-05-28 | Continental Gummi-Werke Ag, 3000 Hannover | Fahrzeugluftreifen |
DE3832487C2 (de) * | 1988-09-24 | 2000-04-20 | Uniroyal Englebert Gmbh | Verfahren zur Herstellung eines Fahrzeugluftreifens |
AT394156B (de) * | 1989-01-18 | 1992-02-10 | Lim Kunststoff Tech Gmbh | Verfahren zur herstellung eines tragfaehigen koerpers, insbesondere fahrzeugreifens |
JPH03118144A (ja) * | 1989-10-02 | 1991-05-20 | Yokohama Rubber Co Ltd:The | 空気入りタイヤとその製造方法 |
-
1997
- 1997-03-25 AU AU25896/97A patent/AU718004B2/en not_active Ceased
- 1997-03-25 CA CA002283884A patent/CA2283884A1/en not_active Abandoned
- 1997-03-25 KR KR1019997008766A patent/KR20010005698A/ko not_active Application Discontinuation
- 1997-03-25 TR TR1999/02228T patent/TR199902228T2/xx unknown
- 1997-03-25 IL IL13184497A patent/IL131844A0/xx unknown
- 1997-03-25 EP EP97917621A patent/EP1027210A1/en not_active Withdrawn
- 1997-03-25 PL PL97335840A patent/PL335840A1/xx unknown
- 1997-03-25 BR BR9714580-7A patent/BR9714580A/pt not_active IP Right Cessation
- 1997-03-25 JP JP54562998A patent/JP2001526604A/ja active Pending
- 1997-03-25 WO PCT/US1997/004859 patent/WO1998042499A1/en not_active Application Discontinuation
- 1997-03-25 NZ NZ337464A patent/NZ337464A/en unknown
- 1997-12-03 DE DE69715688T patent/DE69715688T2/de not_active Expired - Fee Related
- 1997-12-03 WO PCT/US1997/023005 patent/WO1998042498A1/en active IP Right Grant
- 1997-12-03 IL IL13185397A patent/IL131853A0/xx unknown
- 1997-12-03 JP JP54089798A patent/JP4125380B2/ja not_active Expired - Fee Related
- 1997-12-03 PL PL97335833A patent/PL184671B1/pl not_active IP Right Cessation
- 1997-12-03 TR TR1999/02226T patent/TR199902226T2/xx unknown
- 1997-12-03 AU AU55264/98A patent/AU721161B2/en not_active Ceased
- 1997-12-03 CN CN97182069A patent/CN1121939C/zh not_active Expired - Fee Related
- 1997-12-03 KR KR1019997008767A patent/KR100551856B1/ko not_active IP Right Cessation
- 1997-12-03 AT AT97951691T patent/ATE224295T1/de not_active IP Right Cessation
- 1997-12-03 BR BR9714581-5A patent/BR9714581A/pt not_active IP Right Cessation
- 1997-12-03 EP EP97951691A patent/EP1024946B1/en not_active Expired - Lifetime
- 1997-12-03 CA CA002283881A patent/CA2283881A1/en not_active Abandoned
- 1997-12-03 HU HU0000699A patent/HUP0000699A3/hu unknown
- 1997-12-03 US US09/380,555 patent/US6277317B1/en not_active Expired - Fee Related
- 1997-12-03 ES ES97951691T patent/ES2183228T3/es not_active Expired - Lifetime
-
1998
- 1998-02-25 TW TW087102727A patent/TW436434B/zh active
- 1998-03-10 ID IDP980352A patent/ID20130A/id unknown
- 1998-03-11 ZA ZA982075A patent/ZA982075B/xx unknown
- 1998-03-25 AR ARP980101373A patent/AR012177A1/es unknown
- 1998-11-18 MY MYPI98005250A patent/MY128572A/en unknown
-
1999
- 1999-09-24 NO NO994641A patent/NO994641L/no not_active Application Discontinuation
- 1999-09-24 NO NO994642A patent/NO994642L/no not_active Application Discontinuation
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