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Class Information
Number: 110/182.5
Name: Furnaces > Tuyeres
Description: Subject matter relating to conduits for feeding air to furnaces.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7475645 |
Retractable liquor gun holder for a recovery furnace |
Jan. 13, 2009 |
| 7392751 |
Port rodder with velocity damper |
Jul. 1, 2008 |
| 6925969 |
Boiler wall box cooling system |
Aug. 9, 2005 |
| 6672227 |
Arrangement for cleaning, airflow control and pushing away melt in air ports of incineration boilers |
Jan. 6, 2004 |
| 6652267 |
Burner for the partial oxidation of liquid fuels which contain carbon |
Nov. 25, 2003 |
| 6497230 |
Air port damper |
Dec. 24, 2002 |
| 6446565 |
Blast tuyere for shaft furnaces, in particular blast furnaces or hot-blast cupola furnaces |
Sep. 10, 2002 |
| 6422159 |
Incinerator for home use |
Jul. 23, 2002 |
| 6363868 |
Combustors and burners with high turndown ratio |
Apr. 2, 2002 |
| 6260490 |
Burner isolation valve for pulverized fuel systems |
Jul. 17, 2001 |
| 6257156 |
Wind box for a chemical recovery furnace |
Jul. 10, 2001 |
| 6192810 |
Laminar flow air register |
Feb. 27, 2001 |
| 6055943 |
Air port casting |
May. 2, 2000 |
| 6024028 |
Protection of the air ports of a recovery boiler |
Feb. 15, 2000 |
| 5839893 |
Hot burning nozzle with a change pipe |
Nov. 24, 1998 |
| 5531189 |
Automated damping port rodder |
Jul. 2, 1996 |
| 5528999 |
Air nozzle for a recovery boiler |
Jun. 25, 1996 |
| 5462433 |
Device for blowing preheated air into a shaft furnace |
Oct. 31, 1995 |
| 5359965 |
Furnace windbox/water wall seal |
Nov. 1, 1994 |
| 5351631 |
Removable damper for chemical recovery furnace |
Oct. 4, 1994 |
| 5307745 |
Removable damper for chemical recovery furnace |
May. 3, 1994 |
| 5209657 |
Device for injecting preheated air into a shaft furnace and process of manufacturing ball-and-socket joints |
May. 11, 1993 |
| 5178921 |
Burner block assembly and material |
Jan. 12, 1993 |
| 5178819 |
Tuyere blocks of vertical reactor furnaces |
Jan. 12, 1993 |
| 5167192 |
Damper controller for a chemical recovery furnace |
Dec. 1, 1992 |
| 5119743 |
Device for injecting preheated air into a shaft furnace |
Jun. 9, 1992 |
| 5088423 |
Burner tile assembly |
Feb. 18, 1992 |
| 5070823 |
Port rodder with anti-drift feature |
Dec. 10, 1991 |
| 5044934 |
Warm up burner for the hearth of a circulating fluidized bed boiler |
Sep. 3, 1991 |
| 5044327 |
Air/burner port |
Sep. 3, 1991 |
| 5001992 |
Apparatus for regulating air flow through an air port of a chemical recovery furnace |
Mar. 26, 1991 |
| 4987838 |
Device for injecting preheated air into a shaft furnace |
Jan. 29, 1991 |
| 4981088 |
Slag eliminator for furnace viewing system |
Jan. 1, 1991 |
| 4940005 |
Device for injecting preheated air into a shaft furnace |
Jul. 10, 1990 |
| 4940004 |
High energy combustion air nozzle and method for improving combustion in chemical recovery boilers |
Jul. 10, 1990 |
| 4865298 |
Tuyere stock for blast furnaces |
Sep. 12, 1989 |
| 4848248 |
Tuyere for the introduction of a reaction medium into a hot gas |
Jul. 18, 1989 |
| 4846080 |
Apparatus for regulating air flow through an air port of a chemical recovery furnace |
Jul. 11, 1989 |
| 4838182 |
Apparatus for regulating air flow through an air port of a chemical recovery furnace |
Jun. 13, 1989 |
| 4822428 |
Apparatus for cleaning air ports of a chemical recovery furnace |
Apr. 18, 1989 |
| 4759299 |
Deslagger for instrument equipped boiler port |
Jul. 26, 1988 |
| 4759297 |
Furnace burner block |
Jul. 26, 1988 |
| 4748916 |
Cast air nozzle |
Jun. 7, 1988 |
| 4744313 |
Air supply apparatus for an incinerator |
May. 17, 1988 |
| 4716857 |
Furnace wall comprising feed nozzles molded in two complementary parts |
Jan. 5, 1988 |
| 4685703 |
Expansible and contractible duct |
Aug. 11, 1987 |
| 4653409 |
Apparatus for regulating and cleaning an air passage in the wall of a furnace |
Mar. 31, 1987 |
| 4579068 |
Melting system |
Apr. 1, 1986 |
| 4576101 |
Stoker |
Mar. 18, 1986 |
| 4545308 |
Apparatus for regulating airflow to a chemical recovery boiler |
Oct. 8, 1985 |
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