George M Alsop, 854605 Country Club Blvd, Charleston, WV 25309

3990293, Nov 9, 1976

Dec 12, 1975

5/640148

George Michael Alsop - South Charleston WV

Union Carbide Corporation - New York NY

G01N 1302

73 644

The invention relates to methods and apparatus for the detection of changes in surface tension of a liquid by introducing an inert gas under pressure into the liquid to form an inert gas-liquid mixture, decompressing the mixture to provide bubbles which increase in size and generate sounds and measuring the sound intensity of the sound generated by the decompression of the gas-liquid mixture. Inasmuch as the addition of pollutants to water changes the surface tension characteristics of the water, the present invention is applicable to the monitoring of water for the detection of pollutants.

5024952, Jun 18, 1991

Jun 26, 1989

7/371112

George M. Alsop - South Charleston WV

Union Carbide Chemicals and Plastics Technology Corporation - Danbury CT

G01N 118
G01N 3508
G01N 3000
C02F 130

436177

Solutes are obtained from liquid menstrua by bubbling gas through the liquid menstrua wherein solute passes to the interface between the bubble and the liquid menstrum and/or into the gas within the bubble. The bubble breaks the surface of the liquid menstruum and defines an entrainment zone which is subjected to electromagnetic radiation to maintain solute in the vapor space. The recovered solute may, for instance, be subjected to analytical analysis.

3981777, Sep 21, 1976

Jan 19, 1976

5/650356

George Michael Alsop - South Charleston WV

Union Carbide Corporation - New York NY

C12K 100

1951035R

Method of and apparatus for testing materials for levels of agents that are toxic and/or inhibitory to microorganisms involving (a) the mixing of a sample of said material with a liquid medium containing microorganisms, said medium being capable of supporting growth of said microorganisms; (b) the impregnating of the resulting liquid mixture into a porous inert support mass capable of permitting oxygen transfer from ambient gas enveloping said mass to said mixture impregnated into it; (c) the incubating of said mixture impregnated into said mass for a period of time and under conditions sufficient to promote bacterial growth therein in the absence of toxic or inhibitory agents; (d) the removing of the incubated mixture from said inert support mass and filtering same through an open pore filter; and (e) the observing of the degree of turbidity, or lack of it, in the resulting filtrate. In particular, the apparatus of the invention comprises (1) a plurality of closed test reactors; (2) a porous inert support mass disposed within each said reactor and capable of being impregnated with a liquid test mixture and permitting transfer of oxygen from ambient oxygen-containing gas enveloping said mass to said mixture; and (3) a closed source of oxygen connected to said closed test reactor to provide oxygen thereto.