| |
 |
|
Class Information
Number: 122/235.12
Name: Liquid heaters and vaporizers > Water tube > Wall structure
Description: Devices having specific wall structure of the water tubes.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7574981 |
Apparatus and method for improving the durability of a cooling tube in a fire tube boiler |
Aug. 18, 2009 |
| 7533632 |
Natural circulation industrial boiler for steam assisted gravity drainage (SAGD) process |
May. 19, 2009 |
| 7516719 |
Continuous steam generator |
Apr. 14, 2009 |
| 7509928 |
Suspended steam boiler |
Mar. 31, 2009 |
| 7228822 |
Vapor generator using pre-heated injected water |
Jun. 12, 2007 |
| 6793013 |
Polygonal heat exchange chamber including a tapered portion lined with water tube panels and method of lining a tapered portion of a polygonal heat exchange chamber with such panels |
Sep. 21, 2004 |
| 6715450 |
Fossil-fuel fired continuous-flow steam generator |
Apr. 6, 2004 |
| 6578529 |
Arrangement for feeding black liquor into a recovery boiler |
Jun. 17, 2003 |
| 6557499 |
Fossil-fuel-fired once-through steam generator |
May. 6, 2003 |
| 6491000 |
Wall protection from downward flowing solids |
Dec. 10, 2002 |
| 6250257 |
Method for operating a once-through steam generator and once-through steam generator for carrying out the method |
Jun. 26, 2001 |
| 6205634 |
Furnace floor |
Mar. 27, 2001 |
| 6067944 |
Furnace floor |
May. 30, 2000 |
| 6044805 |
Wall protection from downward flowing solids |
Apr. 4, 2000 |
| 5979369 |
Once-through steam generator having spirally disposed evaporator tubes |
Nov. 9, 1999 |
| 5979367 |
Dense fluidized bed exchanger to be associated with a circulating fluidized bed reactor |
Nov. 9, 1999 |
| 5934227 |
Variable pressure once-through steam generator upper furnace having non-split flow circuitry |
Aug. 10, 1999 |
| 5901669 |
Variable pressure once-through steam generator upper furnace having non-split flow circuitry |
May. 11, 1999 |
| 5775265 |
Cooling surface cladding |
Jul. 7, 1998 |
| 5755188 |
Variable pressure once-through steam generator furnace having all welded spiral to vertical tube transition with non-split flow circuitry |
May. 26, 1998 |
| 5730087 |
Tube enclosure and floor support routing for once through steam generators |
Mar. 24, 1998 |
| 5730071 |
System to improve mixing and uniformity of furnace combustion gases in a cyclone fired boiler |
Mar. 24, 1998 |
| 5722353 |
Once-through steam generator vertical tube hopper enclosure with continous transition to spiral furnace enclosure |
Mar. 3, 1998 |
| 5701850 |
Steam generator |
Dec. 30, 1997 |
| 5687676 |
Steam generator |
Nov. 18, 1997 |
| 5673654 |
Marine boiler |
Oct. 7, 1997 |
| 5557901 |
Boiler buckstay system |
Sep. 24, 1996 |
| 5542378 |
Waterwall tube block design |
Aug. 6, 1996 |
| 5526775 |
Circulating fluidized bed reactor and method of operating the same |
Jun. 18, 1996 |
| 5501181 |
Spiral furnace support tube strap |
Mar. 26, 1996 |
| 5390631 |
Use of single-lead and multi-lead ribbed tubing for sliding pressure once-through boilers |
Feb. 21, 1995 |
| 5347955 |
Steam generator |
Sep. 20, 1994 |
| 5273003 |
Cyclone furnace with increased tube wall material |
Dec. 28, 1993 |
| 5203285 |
Uniform distribution heat-transfer pipe unit for double-layer fluids |
Apr. 20, 1993 |
| 5154139 |
Refractory tube block |
Oct. 13, 1992 |
| 5094191 |
Steam generating system utilizing separate fluid flow circuitry between the furnace section and the separating section |
Mar. 10, 1992 |
| 5091156 |
Waterwalls in a fluidized bed reactor |
Feb. 25, 1992 |
| 4987862 |
Once-through steam generator |
Jan. 29, 1991 |
| 4926799 |
Continuous flow steam generator |
May. 22, 1990 |
| 4817565 |
Thermally turbulent combustion system |
Apr. 4, 1989 |
| 4818253 |
Device for gasifying finely divided fuels under increased pressure |
Apr. 4, 1989 |
| 4809621 |
Refractory brick protection for membrane boiler walls |
Mar. 7, 1989 |
| 4785769 |
Refractory lined bodies |
Nov. 22, 1988 |
| 4782793 |
Fossil-fuel fired vapor generator |
Nov. 8, 1988 |
| 4770128 |
Heat exchanger support |
Sep. 13, 1988 |
| 4756278 |
Device for attachment of a tube bundle, especially for a steam generator |
Jul. 12, 1988 |
| 4726323 |
Solid fuel fired vapor generator |
Feb. 23, 1988 |
| 4706614 |
Device for suspending a bundle of horizontal tubes in a vertical plane and method of fabricating the device |
Nov. 17, 1987 |
| 4704992 |
Waterwall support and configuration for a ranch style fluidized bed boiler |
Nov. 10, 1987 |
| 4665865 |
Steam generator having mutually parallel flue gas flues |
May. 19, 1987 |
|
|
|
