ATE153398T1 - Kocher zum kontinuierlichen aufschliessen von fasermaterial - Google Patents

Kocher zum kontinuierlichen aufschliessen von fasermaterial

Info

Publication number: ATE153398T1
Authority: AT; Austria
Prior art keywords: screen; wall; cooker; fiber material; welding
Prior art date: 1992-11-18

Application number

AT93910495T

Other languages

English (en)

Inventor

Finn Oulie

Ake Backlund

Johanna Svanberg

Original Assignee

Kvaerner Pulping Tech

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.)

1992-11-18

Filing date

1993-04-08

Publication date

1997-06-15

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20387855&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE153398(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1993-04-08 Application filed by Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech

1997-06-15 Application granted granted Critical

1997-06-15 Publication of ATE153398T1 publication Critical patent/ATE153398T1/de

Links

Classifications

- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/24—Continuous processes
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C7/00—Digesters
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C7/00—Digesters
- D21C7/14—Means for circulating the lye

Landscapes

Paper (AREA)
Artificial Filaments (AREA)
Multicomponent Fibers (AREA)
Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Preliminary Treatment Of Fibers (AREA)
Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
General Preparation And Processing Of Foods (AREA)
Cookers (AREA)
Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

AT93910495T 1992-11-18 1993-04-08 Kocher zum kontinuierlichen aufschliessen von fasermaterial ATE153398T1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE9203462A SE500455C2 (sv)	1992-11-18	1992-11-18	Förfarande vid kontinuerlig kokning under förhöjt tryck och temperatur av fibermateral i en vertikal kokare

Publications (1)

Publication Number	Publication Date
ATE153398T1 true ATE153398T1 (de)	1997-06-15

Family

ID=20387855

Family Applications (3)

Application Number	Title	Priority Date	Filing Date
AT93912023T ATE156538T1 (de)	1992-11-18	1993-03-16	Kocher zum kontinuierlichen aufschliessen von fasermaterial
AT93910495T ATE153398T1 (de)	1992-11-18	1993-04-08	Kocher zum kontinuierlichen aufschliessen von fasermaterial
AT93924847T ATE164400T1 (de)	1992-11-18	1993-10-08	Verfahren zum kontinuierlichen aufschliessen von zellstoff

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
AT93912023T ATE156538T1 (de)	1992-11-18	1993-03-16	Kocher zum kontinuierlichen aufschliessen von fasermaterial

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
AT93924847T ATE164400T1 (de)	1992-11-18	1993-10-08	Verfahren zum kontinuierlichen aufschliessen von zellstoff

Country Status (18)

Country	Link
US (4)	US5470437A (de)
EP (3)	EP0669998B2 (de)
JP (3)	JP3287848B2 (de)
CN (1)	CN1036728C (de)
AT (3)	ATE156538T1 (de)
AU (3)	AU684759B2 (de)
BR (3)	BR9307478A (de)
CA (3)	CA2149535C (de)
DE (4)	DE69312955T3 (de)
ES (3)	ES2105269T5 (de)
FI (3)	FI115142B (de)
MA (1)	MA23034A1 (de)
NO (3)	NO306478B1 (de)
NZ (3)	NZ252758A (de)
RU (3)	RU2121537C1 (de)
SE (3)	SE500455C2 (de)
WO (3)	WO1994011564A1 (de)
ZA (3)	ZA937958B (de)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH07501244A (ja) *	1991-11-19	1995-02-09	ザ、プロクター、エンド、ギャンブル、カンパニー	不織有孔フィルムカバーシートを有する吸収性製品
SE500455C2 (sv)	1992-11-18	1994-06-27	Kamyr Ab	Förfarande vid kontinuerlig kokning under förhöjt tryck och temperatur av fibermateral i en vertikal kokare
SE500959C2 (sv) *	1993-02-16	1994-10-10	Kvaerner Pulping Tech	Silanordning i en kontinuerlig kokare
US5766413A (en) *	1993-04-23	1998-06-16	Kvaerner Pulping Ab	Process for isothermal cooking pulp in a continuous digester
SE502486C2 (sv) *	1994-02-18	1995-10-30	Kvaerner Pulping Tech	Förfarande och anordning av ventil för avdragning och backspolning av exv. kokarvätska vid cellulosakokare samt användning därav vid kokarsilar
US5680995A (en) *	1995-06-29	1997-10-28	Salminen; Reijo K.	Continuous digester
US5658428A (en) *	1995-10-19	1997-08-19	Kvaerner Pulping Technologies Ab	Method for impregnation in a single-vessel hydraulic digester
US5885414A (en) *	1997-08-18	1999-03-23	Kvaerner Pulping Ab	Method of producing pulp with high alkali cooking in the last cooking stage
US5985096A (en) *	1997-09-23	1999-11-16	Ahlstrom Machinery Inc.	Vertical pulping digester having substantially constant diameter
US6123808A (en) *	1997-12-09	2000-09-26	Ahlstrom Machinery Inc.	Distribution of dilution liquor to the discharge of a cellulose pulp digester
US20010032711A1 (en) *	1998-10-26	2001-10-25	C. Bertil Stromberg	Pulp cooking with particular alkali profiles
US20020069986A1 (en) *	2000-06-16	2002-06-13	Marcoccia Bruno S.	System and method for improved filtrate addition in a continuous digester
SE0004050L (sv) *	2000-11-03	2001-11-05	Kvaerner Pulping Tech	Kontinuerlig kokning av massa med nettomedströmsflöde i kokarens bottenparti
SE0004049L (sv) *	2000-11-03	2001-11-05	Kvaerner Pulping Tech	Kontinuerlig kokning av massa med avdrag av begagnad koklut dels från kokaren, dels från en efterföljande tryckdiffusör
CN1308545C (zh) *	2003-08-26	2007-04-04	山东泉林纸业有限责任公司	一种纸浆立式蒸煮锅
US20050274468A1 (en)	2004-05-28	2005-12-15	Metso Paper, Inc.	Central screen
FI117477B (fi) *	2004-05-28	2006-10-31	Metso Paper Inc	Sihtielin
US7736467B2 (en) *	2004-06-29	2010-06-15	Metso Paper Pori Oy	Screen assembly for a pulp digester
SE531067C2 (sv) *	2005-09-15	2008-12-09	Metso Fiber Karlstad Ab	Kontinuerlig kokare med vätskecirkulation
US7799173B2 (en) *	2007-01-18	2010-09-21	Andritz Inc.	Screen plates having diagonal slots with curved inlets for a digester
SE530744C2 (sv) *	2007-02-23	2008-09-02	Metso Fiber Karlstad Ab	Ångfaskokare samt ett förfarande vid kontinuerlig kokning
SE531717C2 (sv) *	2007-11-30	2009-07-21	Metso Fiber Karlstad Ab	Kokarsil för en kontinuerlig cellulosamassakokare
SE532930C2 (sv) *	2008-03-20	2010-05-11	Metso Fiber Karlstad Ab	Matningssystem innefattande parallella pumpar för en kontinuerlig kokare
US7867363B2 (en) *	2008-08-27	2011-01-11	Metso Fiber Karlstad Ab	Continuous digester system
SE533670C2 (sv) *	2009-04-01	2010-11-30	Metso Fiber Karlstad Ab	System och metod för reglering av en kontinuerlig ångfaskokare
US8951388B2 (en) *	2011-04-08	2015-02-10	Pec-Tech Engineering And Construction Pte Ltd	Method and system for efficient production of dissolving pulp in a kraft mill producing paper grade pulp with a continuous type digester
CN104053834B (zh)	2012-01-12	2016-04-06	维美德公司	用于蒸煮器容器的异型棒条筛
CN102619122A (zh) *	2012-04-25	2012-08-01	湖南骏泰浆纸有限责任公司	立式连续蒸煮器上循环装置
AU2013280241B2 (en) *	2012-06-28	2016-02-11	Shell Internationale Research Maatschappij B.V.	Digestion units configured for high yield biomass processing
US9115214B2 (en)	2012-09-24	2015-08-25	Abengoa Bioenergy New Technologies, Llc	Methods for controlling pretreatment of biomass
CN102978987A (zh) *	2012-12-24	2013-03-20	江苏华机环保设备有限责任公司	一种立式蒸煮锅
WO2015155642A1 (en) *	2014-04-07	2015-10-15	Stora Enso Oyj	A method of digesting cellulose fibrous material in a continuous digester
SE538326C2 (en) *	2014-09-01	2016-05-17	Valmet Oy	Profile bar screen for digester vessels
RU208723U1 (ru) *	2021-09-14	2022-01-11	Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный университет промышленных технологий и дизайна"	Вертикальный варочный котел
WO2025136524A1 (en)	2023-12-21	2025-06-26	ExxonMobil Technology and Engineering Company	Oligomerization process of linear alpha olefin to produce base stock

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE211196C1 (de) *
US2414062A (en) *	1944-05-02	1947-01-07	Kamyr Ab	Apparatus for heating and controlling the temperature in a continuously operating digester
US2852369A (en) *	1954-09-17	1958-09-16	Electric Steel Foundry	Digester strainer
US2998064A (en) *	1957-12-11	1961-08-29	Improved Machinery Inc	Strainer construction
US3427218A (en) *	1964-07-10	1969-02-11	Kamyr Ab	Method of performing counter-current continuous cellulose digestion
SE325770B (de) *	1969-10-13	1970-07-06	Kamyr Ab
SE357219B (de) *	1970-02-11	1973-06-18	Kamyr Ab
SE343344B (de) *	1970-06-29	1972-03-06	Kamyr Ab
US3755072A (en) †	1970-10-23	1973-08-28	Kamyr Ab	Strainer device for cellulose digester
US3700548A (en) *	1971-04-28	1972-10-24	Improved Machinery Inc	Apparatus and methods of continuous digesting
US3836463A (en) *	1972-07-28	1974-09-17	Gen Signal Corp	System and apparatus for cleaning bar grid
US3941650A (en) *	1974-08-09	1976-03-02	Schnyder Auxilius P	Continuous digester
US4193839A (en) *	1976-05-11	1980-03-18	Kamyr, Inc.	Flow control method and apparatus for continuous wood chip digester screenless liquor extractor
US4123318A (en)	1976-06-29	1978-10-31	Kamyr, Inc.	Three-vessel treatment system
SU777122A1 (ru) *	1978-06-12	1980-11-07	Украинское научно-производственное объединение целлюлозно-бумажной промышленности	Варочный котел периодического действи
US4331509A (en) *	1980-07-07	1982-05-25	Esco Corporation	Digester strainer locking assembly
US4436586A (en) *	1982-01-22	1984-03-13	Kamyr, Inc.	Method of producing kraft pulp using an acid prehydrolysis and pre-extraction
JPS609287A (ja) *	1983-06-29	1985-01-18	Fuji Photo Film Co Ltd	映像記録装置のカツト制御装置
SU1719506A1 (ru) *	1990-01-22	1992-03-15	Центральный Научно-Исследовательский И Проектно-Конструкторский Институт По Проектированию Оборудования Для Целлюлозно-Бумажной Промышленности	Варочный котел периодического действи
US5069752A (en) *	1990-04-30	1991-12-03	Kamyr Ab	Digester screen switching
CA2037717C (en) *	1990-09-17	1996-03-05	Bertil Stromberg	Extended kraft cooking with white liquor added to wash circulation
US5328564A (en) *	1990-09-17	1994-07-12	Kamyr, Inc.	Modified digestion of paper pulp followed by ozone bleaching
US5236554A (en) *	1991-08-16	1993-08-17	Kamyr, Inc.	Digester having plural screens with means for controlling liquid injection and withdrawal
SE500455C2 (sv)	1992-11-18	1994-06-27	Kamyr Ab	Förfarande vid kontinuerlig kokning under förhöjt tryck och temperatur av fibermateral i en vertikal kokare
SE501848C2 (sv)	1992-11-18	1995-06-06	Kvaerner Pulping Tech	Metod att koka massa kontinuerligt vid konstant temperatur

1992
- 1992-11-18 SE SE9203462A patent/SE500455C2/sv not_active IP Right Cessation
1993
- 1993-03-16 AT AT93912023T patent/ATE156538T1/de not_active IP Right Cessation
- 1993-03-16 ES ES93912023T patent/ES2105269T5/es not_active Expired - Lifetime
- 1993-03-16 JP JP51196994A patent/JP3287848B2/ja not_active Expired - Fee Related
- 1993-03-16 WO PCT/SE1993/000223 patent/WO1994011564A1/en not_active Ceased
- 1993-03-16 AU AU63965/94A patent/AU684759B2/en not_active Ceased
- 1993-03-16 BR BR9307478A patent/BR9307478A/pt not_active IP Right Cessation
- 1993-03-16 CA CA002149535A patent/CA2149535C/en not_active Expired - Fee Related
- 1993-03-16 NZ NZ252758A patent/NZ252758A/en unknown
- 1993-03-16 RU RU95112496A patent/RU2121537C1/ru active
- 1993-03-16 DE DE69312955T patent/DE69312955T3/de not_active Expired - Fee Related
- 1993-03-16 EP EP93912023A patent/EP0669998B2/de not_active Expired - Lifetime
- 1993-04-08 AT AT93910495T patent/ATE153398T1/de not_active IP Right Cessation
- 1993-04-08 CA CA002149434A patent/CA2149434C/en not_active Expired - Fee Related
- 1993-04-08 JP JP51197094A patent/JP3287849B2/ja not_active Expired - Fee Related
- 1993-04-08 AU AU40966/93A patent/AU680194B2/en not_active Ceased
- 1993-04-08 NZ NZ252340A patent/NZ252340A/en not_active IP Right Cessation
- 1993-04-08 WO PCT/SE1993/000311 patent/WO1994011565A1/en not_active Ceased
- 1993-04-08 RU RU95112494A patent/RU2113574C1/ru active
- 1993-04-08 EP EP93910495A patent/EP0673452B1/de not_active Expired - Lifetime
- 1993-04-08 ES ES93910495T patent/ES2103082T3/es not_active Expired - Lifetime
- 1993-04-08 BR BR9307479A patent/BR9307479A/pt not_active IP Right Cessation
- 1993-04-08 DE DE69310929T patent/DE69310929T2/de not_active Expired - Fee Related
- 1993-07-16 US US08/092,420 patent/US5470437A/en not_active Expired - Lifetime
- 1993-10-08 NZ NZ257659A patent/NZ257659A/en not_active IP Right Cessation
- 1993-10-08 DE DE69317670T patent/DE69317670T2/de not_active Expired - Fee Related
- 1993-10-08 ES ES93924847T patent/ES2077548T3/es not_active Expired - Lifetime
- 1993-10-08 AU AU54355/94A patent/AU673392B2/en not_active Ceased
- 1993-10-08 AT AT93924847T patent/ATE164400T1/de not_active IP Right Cessation
- 1993-10-08 BR BR9307480A patent/BR9307480A/pt not_active IP Right Cessation
- 1993-10-08 EP EP93924847A patent/EP0673453B1/de not_active Expired - Lifetime
- 1993-10-08 JP JP51197194A patent/JP3223285B2/ja not_active Expired - Lifetime
- 1993-10-08 CA CA002149423A patent/CA2149423C/en not_active Expired - Lifetime
- 1993-10-08 WO PCT/SE1993/000816 patent/WO1994011566A1/en not_active Ceased
- 1993-10-08 DE DE0673453T patent/DE673453T1/de active Pending
- 1993-10-08 RU RU95112468A patent/RU2126470C1/ru active
- 1993-10-26 ZA ZA937958A patent/ZA937958B/xx unknown
- 1993-10-26 ZA ZA937959A patent/ZA937959B/xx unknown
- 1993-11-10 ZA ZA938390A patent/ZA938390B/xx unknown
- 1993-11-17 CN CN93121428A patent/CN1036728C/zh not_active Expired - Fee Related
- 1993-11-17 MA MA23340A patent/MA23034A1/fr unknown
1994
- 1994-07-08 SE SE9402412A patent/SE9402412L/xx not_active Application Discontinuation
- 1994-07-08 SE SE9402411A patent/SE513746C2/sv not_active IP Right Cessation
1995
- 1995-03-22 US US08/408,706 patent/US5591303A/en not_active Expired - Lifetime
- 1995-03-31 US US08/415,203 patent/US5567280A/en not_active Expired - Lifetime
- 1995-05-17 FI FI952388A patent/FI115142B/fi active IP Right Grant
- 1995-05-17 FI FI952389A patent/FI114718B/fi not_active IP Right Cessation
- 1995-05-17 FI FI952387A patent/FI113186B/fi active
- 1995-05-18 NO NO951973A patent/NO306478B1/no not_active IP Right Cessation
- 1995-05-18 NO NO951974A patent/NO306479B1/no not_active IP Right Cessation
- 1995-05-18 NO NO951972A patent/NO306477B1/no not_active IP Right Cessation
1997
- 1997-01-16 US US08/784,808 patent/US5827401A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
WO1994011566A1 (en)	1994-05-26
CA2149535A1 (en)	1994-05-26
ES2103082T3 (es)	1997-08-16
JPH08504238A (ja)	1996-05-07
EP0673452A1 (de)	1995-09-27
ZA938390B (en)	1994-06-09
FI952387L (fi)	1995-05-17
FI952388A0 (fi)	1995-05-17
ZA937958B (en)	1994-05-27
CA2149434C (en)	2004-07-13
FI952388A7 (fi)	1995-05-17
FI952389A0 (fi)	1995-05-17
CA2149434A1 (en)	1994-05-26
WO1994011565A1 (en)	1994-05-26
ES2105269T3 (es)	1997-10-16
SE513746C2 (sv)	2000-10-30
MA23034A1 (fr)	1993-11-17
NO951974D0 (no)	1995-05-18
DE69312955D1 (de)	1997-09-11
US5827401A (en)	1998-10-27
RU2113574C1 (ru)	1998-06-20
NO951973D0 (no)	1995-05-18
NZ257659A (en)	1996-07-26
SE9402411L (sv)	1994-07-08
CN1091792A (zh)	1994-09-07
EP0669998B1 (de)	1997-08-06
CA2149423C (en)	2004-03-16
NO306477B1 (no)	1999-11-08
ES2105269T5 (es)	2002-03-01
AU673392B2 (en)	1996-11-07
NO306478B1 (no)	1999-11-08
NO951973L (no)	1995-05-18
AU684759B2 (en)	1998-01-08
EP0673453A1 (de)	1995-09-27
BR9307480A (pt)	1999-08-24
EP0673452B1 (de)	1997-05-21
DE673453T1 (de)	1996-02-29
ES2077548T3 (es)	1998-06-16
ATE156538T1 (de)	1997-08-15
RU95112496A (ru)	1997-01-27
FI115142B (fi)	2005-03-15
DE69310929D1 (de)	1997-06-26
US5470437A (en)	1995-11-28
FI952389L (fi)	1995-05-17
RU95112468A (ru)	1997-04-10
BR9307479A (pt)	1999-08-24
NZ252340A (en)	1996-11-26
AU680194B2 (en)	1997-07-24
DE69317670D1 (de)	1998-04-30
WO1994011564A1 (en)	1994-05-26
AU6396594A (en)	1994-06-08
NO951972D0 (no)	1995-05-18
CA2149535C (en)	2004-07-06
SE9402411D0 (sv)	1994-07-08
SE9402412D0 (sv)	1994-07-08
ES2077548T1 (es)	1995-12-01
RU95112494A (ru)	1997-01-27
CA2149423A1 (en)	1994-05-26
FI114718B (fi)	2004-12-15
JP3287848B2 (ja)	2002-06-04
DE69312955T3 (de)	2002-04-11
NO306479B1 (no)	1999-11-08
JPH08503268A (ja)	1996-04-09
RU2126470C1 (ru)	1999-02-20
FI113186B (fi)	2004-03-15
JPH08503030A (ja)	1996-04-02
US5591303A (en)	1997-01-07
SE500455C2 (sv)	1994-06-27
NO951972L (no)	1995-05-18
SE9203462L (sv)	1994-05-19
DE69312955T2 (de)	1997-12-11
ZA937959B (en)	1994-05-27
FI952387A0 (fi)	1995-05-17
ATE164400T1 (de)	1998-04-15
DE69317670T2 (de)	1998-08-20
SE9203462D0 (sv)	1992-11-18
US5567280A (en)	1996-10-22
EP0673453B1 (de)	1998-03-25
JP3287849B2 (ja)	2002-06-04
JP3223285B2 (ja)	2001-10-29
SE9402412L (sv)	1994-07-08
CN1036728C (zh)	1997-12-17
DE69310929T2 (de)	1997-11-20
EP0669998B2 (de)	2001-08-22
EP0669998A1 (de)	1995-09-06
NZ252758A (en)	1996-06-25
AU5435594A (en)	1994-06-08
NO951974L (no)	1995-05-18
AU4096693A (en)	1994-06-08
RU2121537C1 (ru)	1998-11-10
BR9307478A (pt)	1999-08-24

Legal Events

Date	Code	Title	Description
2004-01-15	REN	Ceased due to non-payment of the annual fee

Publication	Publication Date	Title
ATE156538T1 (de)	1997-08-15	Kocher zum kontinuierlichen aufschliessen von fasermaterial
ATE234507T1 (de)	2003-03-15	Vorrichtung zum behandeln von substraten
SE8503282L (sv)	1987-01-03	Sett vid ang/vetskefaskokare for cellulosamassa
SE9304177D0 (sv)	1993-12-16	Silanordning
DE3568708D1 (en)	1989-04-20	Bottom for large columns
JPS5588826A (en)	1980-07-04	Gas-liquid contact apparatus
QUEWET	1980	NEED AND CONCEPT OF COPING
TH16946A (th)	1995-11-23	กระบวนการสำหรับการต้มเยื่อกระดาษอย่างต่อเนื่อง
ES1046802U (es)	2001-02-01	Canalon para cultivo hidroponico.
RO97176B1 (ro)	1989-07-01	Instalatie pentru obtinerea unui produs lichid de afumare
ES294104U (es)	1986-09-01	Fachada para entidades bancarias, con cajero automatico, o similares
DK298788A (da)	1988-06-01	Vandreservoir
SE9202365L (sv)	1994-02-19	Avvattningsanordning innefattande vertikala rörledningar
JPS6417954A (en)	1989-01-20	External wall panel
RU92003130A (ru)	1995-02-10	Прямоточная стекловаренная печь
RO90362A2 (ro)	1986-07-30	Cuptor de inductie cu canale cu curgere dirijata a topiturii