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(12) Patent: | (11) CA 1283297 |
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(21) Application Number: | 1283297 |
(54) English Title: | DISPOSITIF D'INJECTION DE MATIERES SOLIDES DIVISEES DANS UN FOUR, NOTAMMENT DANS UN HAUT-FOURNEAU SIDERURGIQUE, ET APPLICATIONS |
(54) French Title: | DEVICE FOR INJECTING DIVIDED SOLIDS IN A FURNACE, NAMELY IN A STEEL MAKING BLAST FURNACE, AND USES FOR SAID DEVICE |
Status: | Expired and beyond the Period of Reversal |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | SWABEY OGILVY RENAULT |
(74) Associate agent: | |
(45) Issued: | 1991-04-23 |
(22) Filed Date: | 1986-05-06 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | French |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | ||||||
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ABREGE DESCRIPTIF
La tuyère comporte une partie aval
sensiblement cylindrique ou tronconique légèrement
convergente et une partie amont tronconique di-
vergente; la torche à plasma est placée coaxialement
à la tuyère à l'entrée de la partie amont de
la tuyère; la buse d'injection des matières débouche
obliquement dans la partie amont de la tuyère
dont la conicité avoisine l'angle d'expansion
naturelle du jet de plasma de manière que les
matières soient entraînées dans le jet de plasma
et qu'une partie d'entre elles soient projetées
sur la paroi interne de la tuyère, réalisant
ainsi un autogarnissage.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
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Description | Date |
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Inactive: IPC from MCD | 2006-03-11 |
Inactive: Adhoc Request Documented | 1996-04-23 |
Time Limit for Reversal Expired | 1995-10-23 |
Letter Sent | 1995-04-24 |
Grant by Issuance | 1991-04-23 |
There is no abandonment history.
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE (IRSID) |
Past Owners on Record |
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HUGUES ZANETTA |
MICHEL SCHNEIDER |
YANN DE LASSAT DE PRESSIGNY |