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Class Information
Number: 204/662
Name: Chemistry: electrical and wave energy > Apparatus > Apparatus for electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation) > With control means responsive to sensed condition > Liquid level sensing means
Description: Apparatus in which means are provided to detect the height of a liquid level or a change therein and to control operation of the apparatus based upon the detected level or change therein.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7008529 |
Water treating device |
Mar. 7, 2006 |
| 5543027 |
Apparatus for electrostatic liquid/liquid contactor |
Aug. 6, 1996 |
| 5458757 |
High potential electrode with electrical insulating means and integral safety means |
Oct. 17, 1995 |
| 4636290 |
Liquid-liquid exchangers and process of using |
Jan. 13, 1987 |
| 4511452 |
Plural stage desalting/dehydrating apparatus |
Apr. 16, 1985 |
| 4374724 |
Plural stage desalting/dehydrating apparatus |
Feb. 22, 1983 |
| 4371434 |
Degasser-dehydrator |
Feb. 1, 1983 |
| 4226689 |
Apparatus and process for electrically resolving emulsions |
Oct. 7, 1980 |
| 4182672 |
Plural stage desalter/dehydrator in a single vessel |
Jan. 8, 1980 |
| 4149958 |
Plural stage desalter/dehydrator in a single vessel |
Apr. 17, 1979 |
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