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Class Information
Number: 159/23
Name: Concentrating evaporators > Closed evaporating chambers > Indirectly heated
Description: Vessel in which heat is conducted through the closed vessel to the liquid undergoing evaporation. The vessel is heated otherwise than by direct communication with a primary source of heat, such as a furnace.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7332058 |
Heat exchanger and process for devolatilizing polymers using same |
Feb. 19, 2008 |
| 6969446 |
Method for producing concentrated nitric acid and installation for carrying out a method of this type |
Nov. 29, 2005 |
| 6887344 |
Compact wastewater cleaning apparatus |
May. 3, 2005 |
| 6878342 |
Apparatus for determining temperance of and controlling the evaporation of liquid samples |
Apr. 12, 2005 |
| 6699369 |
Apparatus and method for thermal desalination based on pressurized formation and evaporation of droplets |
Mar. 2, 2004 |
| 6485607 |
Methods for removing volatile components from polymer solutions |
Nov. 26, 2002 |
| 6413361 |
Heavy oil emulsified fuel evaporator system and operation method thereof |
Jul. 2, 2002 |
| 6200428 |
Wastewater treatment apparatus and method |
Mar. 13, 2001 |
| 6197152 |
Process and apparatus for recovery of lithium in a helminthoid evaporator |
Mar. 6, 2001 |
| 6132555 |
Method and arrangement for increasing evaporation capacity of a multi-stage evaporator of spent liquor in a pulp mill |
Oct. 17, 2000 |
| 6027607 |
Salt extraction process and device |
Feb. 22, 2000 |
| 5772843 |
Evaporator |
Jun. 30, 1998 |
| 5730836 |
Evaporative concentration of clay slurries |
Mar. 24, 1998 |
| 5639427 |
Sulfuric acid preparation assembly |
Jun. 17, 1997 |
| 5624530 |
Spray drying system |
Apr. 29, 1997 |
| 5582690 |
Method of and means for water desalinization |
Dec. 10, 1996 |
| 5582680 |
Wastewater treating apparatus |
Dec. 10, 1996 |
| RE35283 |
High efficiency water distiller |
Jun. 25, 1996 |
| 5306397 |
Process and apparatus for the extraction of fresh water from warm seawater |
Apr. 26, 1994 |
| 5200033 |
Method for removing organic contaminants from soils |
Apr. 6, 1993 |
| 5084134 |
Process for the devolatilization of polymer solutions |
Jan. 28, 1992 |
| 4981555 |
Process and apparatus for concentrating a solution |
Jan. 1, 1991 |
| 4963231 |
Method for evaporation of liquids |
Oct. 16, 1990 |
| 4953538 |
Piggy back evaporating for maple syrup evaporator apparatus or the like |
Sep. 4, 1990 |
| 4931222 |
Process for treating radioactive liquid waste containing sodium borate and solidified radioactive waste |
Jun. 5, 1990 |
| 4894123 |
High efficiency water distiller |
Jan. 16, 1990 |
| 4840678 |
Pipe coil cooker |
Jun. 20, 1989 |
| 4834836 |
Method and apparatus for pollution control of liquid wastes |
May. 30, 1989 |
| 4826575 |
Apparatus for production of high-purity water by microwave technology |
May. 2, 1989 |
| 4819615 |
Piggy back evaporator for maple syrup evaporator apparatus or the like |
Apr. 11, 1989 |
| 4789428 |
Method for evaporation of spent liquor |
Dec. 6, 1988 |
| 4738295 |
Method and apparatus for evaporating a fluid in a rotating vacuum evaporation system |
Apr. 19, 1988 |
| 4724048 |
Water distiller |
Feb. 9, 1988 |
| 4627890 |
Centrifugal device |
Dec. 9, 1986 |
| 4585520 |
Method and apparatus for closing the vent of an evaporator |
Apr. 29, 1986 |
| 4444680 |
Process and apparatus for the volume reduction of PWR liquid wastes |
Apr. 24, 1984 |
| 4437968 |
Boiler apparatus |
Mar. 20, 1984 |
| 4296072 |
Apparatus for the treatment of wet solids, especially pulpy materials, by heating or cooling |
Oct. 20, 1981 |
| 4208298 |
Process for treating radioactive liquid waste |
Jun. 17, 1980 |
| 4179328 |
Method and apparatus for injecting stripping gas into the reboiler section of a glycol reboiler |
Dec. 18, 1979 |
| 4131507 |
Evaporator |
Dec. 26, 1978 |
| 3977935 |
Method and apparatus for evaporating liquids |
Aug. 31, 1976 |
| 3976537 |
Heat exchangers and evaporators |
Aug. 24, 1976 |
| 3973987 |
Water recycle treatment system for use in metal processing |
Aug. 10, 1976 |
| 3937646 |
Evaporation apparatus of special material |
Feb. 10, 1976 |
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