| |
 |
|
Class Information
Number: 159/28.1
Name: Concentrating evaporators > Closed evaporating chambers > Indirectly heated > Heating elements
Description: Devices relating to the means for maintaining the heating medium separate from, but in heating contact with, the liquid or the surface of the liquid container.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7575656 |
Wastewater evaporating treatment and disposal system |
Aug. 18, 2009 |
| 6887344 |
Compact wastewater cleaning apparatus |
May. 3, 2005 |
| 6878342 |
Apparatus for determining temperance of and controlling the evaporation of liquid samples |
Apr. 12, 2005 |
| 5643408 |
Apparatus for decontaminating a liquid surfactant of dioxane |
Jul. 1, 1997 |
| 5254219 |
Film-type evaporator |
Oct. 19, 1993 |
| 4865689 |
Method and apparatus for evaporating the volatile components of a polymer |
Sep. 12, 1989 |
| 4836891 |
Self-contained oil well salt water concentration system |
Jun. 6, 1989 |
| 4728397 |
Apparatus for desalinating salt water by membrane distillation |
Mar. 1, 1988 |
| 4559098 |
Nitride etch bath |
Dec. 17, 1985 |
| 4534828 |
Evaporator apparatus |
Aug. 13, 1985 |
| 4475977 |
Nitride etch bath |
Oct. 9, 1984 |
| 4284469 |
Method and apparatus for concentrating a liquid |
Aug. 18, 1981 |
| 4230536 |
Method for the distillation purification of organic heat transfer fluids |
Oct. 28, 1980 |
| 4221629 |
Electron beam evaporation device for vacuum evaporators |
Sep. 9, 1980 |
| 4167437 |
Boiling water evaporator with shrouded heating tube bundle |
Sep. 11, 1979 |
| 4138309 |
Multi-stage apparatus for concentrating sulphuric acid |
Feb. 6, 1979 |
| 4135567 |
Method of evaporating and/or concentrating water-containing liquids |
Jan. 23, 1979 |
| 4132587 |
Evaporator |
Jan. 2, 1979 |
| 4082140 |
Heat exchange method |
Apr. 4, 1978 |
| 4081333 |
Method and apparatus for distillation |
Mar. 28, 1978 |
| 4014735 |
Concentration and separation of corrosive liquid mixtures |
Mar. 29, 1977 |
| 4004965 |
Vertical flameless reboiler for reconcentrating liquid desiccant |
Jan. 25, 1977 |
| 4004964 |
Multistage continuous vacuum pan |
Jan. 25, 1977 |
| 3975229 |
Flameless reboiler for reconcentrating liquid desiccant |
Aug. 17, 1976 |
| 3974022 |
Device for mounting plastic non-rigid tubes in evaporators |
Aug. 10, 1976 |
| 3964873 |
Heating device having dumbbell-shaped reaction tubes therein |
Jun. 22, 1976 |
| 3950216 |
Falling film evaporator |
Apr. 13, 1976 |
| 3939036 |
Heat exchangers and evaporators |
Feb. 17, 1976 |
| 3937646 |
Evaporation apparatus of special material |
Feb. 10, 1976 |
| 3933576 |
Evaporation of radioactive wastes |
Jan. 20, 1976 |
|
|
|
