BR9603828A - Método e aparelho para purga turbulenta controlada de recipientes abertos - Google Patents

Método e aparelho para purga turbulenta controlada de recipientes abertos

Info

Publication number
BR9603828A
BR9603828A BR9603828A BR9603828A BR9603828A BR 9603828 A BR9603828 A BR 9603828A BR 9603828 A BR9603828 A BR 9603828A BR 9603828 A BR9603828 A BR 9603828A BR 9603828 A BR9603828 A BR 9603828A
Authority
BR
Brazil
Prior art keywords
purging
open containers
controlled turbulent
turbulent
controlled
Prior art date
Application number
BR9603828A
Other languages
English (en)
Inventor
Michael Francis Riley
Original Assignee
Praxair Technology 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 Praxair Technology Inc filed Critical Praxair Technology Inc
Publication of BR9603828A publication Critical patent/BR9603828A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/072—Treatment with gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0073—Seals
    • F27D99/0075—Gas curtain seals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Gas Separation By Absorption (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Vacuum Packaging (AREA)
  • Chemical Vapour Deposition (AREA)
BR9603828A 1995-09-21 1996-09-20 Método e aparelho para purga turbulenta controlada de recipientes abertos BR9603828A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/531,675 US5674309A (en) 1995-09-21 1995-09-21 Method and apparatus for controlled turbulent purging of open containers

Publications (1)

Publication Number Publication Date
BR9603828A true BR9603828A (pt) 1998-06-02

Family

ID=24118591

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9603828A BR9603828A (pt) 1995-09-21 1996-09-20 Método e aparelho para purga turbulenta controlada de recipientes abertos

Country Status (8)

Country Link
US (1) US5674309A (pt)
EP (1) EP0764822B1 (pt)
KR (1) KR100289874B1 (pt)
CN (1) CN1047206C (pt)
BR (1) BR9603828A (pt)
CA (1) CA2186057C (pt)
DE (1) DE69607805T2 (pt)
ES (1) ES2144677T3 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090073397A1 (en) * 2005-06-30 2009-03-19 Asml Holding N.V. Laminar Flow Gas Curtains for Lithographic Applications

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1315206A (en) * 1919-09-09 William h
US4298187A (en) * 1978-04-26 1981-11-03 Swiss Aluminium Ltd. Apparatus for inline degassing and filtration of molten metal
US4448616A (en) * 1981-07-20 1984-05-15 Union Carbide Corporation Process for reducing backmixing
US4552587A (en) * 1984-09-28 1985-11-12 Nippon Kokan Kabushiki Kaisha Method of operating ladle refining furnace
US4898319A (en) * 1987-12-04 1990-02-06 Bruce T. Williams Ambient air exclusion system for brazing ovens
US4823680A (en) * 1987-12-07 1989-04-25 Union Carbide Corporation Wide laminar fluid doors
FR2635789B1 (fr) * 1988-08-29 1993-04-23 Air Liquide American Procede d'elaboration d'acier a faible teneur en azote dans un four poche
US5004495A (en) * 1990-02-05 1991-04-02 Labate M D Method for producing ultra clean steel
EP0502256A3 (en) * 1991-03-06 1992-12-09 Beck U. Kaltheuner, Feuerfeste Erzeugnissegmbh & Co. Kg Gas bubbling device for the treatment of steel in a ladle
US5195888A (en) * 1991-08-19 1993-03-23 Praxair Technology, Inc. Multi-layer fluid curtains for furnace openings
US5160693A (en) * 1991-09-26 1992-11-03 Eckert Charles E Impeller for treating molten metals
US5183498A (en) * 1991-11-21 1993-02-02 Retech, Inc. Gas barrier for the refining superalloy
US5366409A (en) * 1993-11-22 1994-11-22 Praxair Technology, Inc. Controlling pouring stream and receiver environment

Also Published As

Publication number Publication date
US5674309A (en) 1997-10-07
DE69607805D1 (de) 2000-05-25
EP0764822B1 (en) 2000-04-19
CA2186057C (en) 1999-09-07
DE69607805T2 (de) 2000-10-12
EP0764822A1 (en) 1997-03-26
KR970015756A (ko) 1997-04-28
CN1047206C (zh) 1999-12-08
CA2186057A1 (en) 1997-03-22
KR100289874B1 (ko) 2001-05-15
CN1151440A (zh) 1997-06-11
ES2144677T3 (es) 2000-06-16

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B24C Patent annual fee: request for for restoration

Free format text: REFERENTE A 9A , 10A , 11A , 12A , 13A E 14A A NUIDADES.

B24H Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
B15K Others concerning applications: alteration of classification

Ipc: C21C 7/072 (2006.01), B22D 11/11 (2006.0

B24F Patent annual fee: publication cancelled

Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2256 DE 01/04/2014 POR TER SIDO INDEVIDA.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE AS 9A, 10A, 11A, 12A, 13A E 14A ANUIDADES.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2605 DE 08-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.