William Austin Krause
Engineers in Houston, TX

6622519, Sep 23, 2003

Aug 15, 2002

10/219990

James A. Mathias - Columbus OH
Ravi Arora - Dublin OH
Wayne W. Simmons - Dublin OH
Jeffrey S. McDaniel - Columbus OH
Anna Lee Tonkovich - Marysville OH
William A. Krause - Houston TX
Laura J. Silva - Dublin OH

Velocys, Inc. - Plain City OH

F25J 100

62611, 62613

This invention relates to a process for cooling a product in a heat exchanger, the process comprising: flowing a refrigerant through a set of first microchannels in the heat exchanger; flowing a refrigerant through a set of second microchannels in the heat exchanger, the refrigerant flowing through the set of second microchannels being at a lower temperature, a lower pressure or both a lower temperature and a lower pressure than the refrigerant flowing through the set of first microchannels; and flowing a product through a set of third microchannels in the heat exchanger, the product exiting the set of third microchannels having a cooler temperature than the product entering the set of third microchannels. This process is suitable for liquefying gaseous products including natural gas.

4179347, Dec 18, 1979

Feb 28, 1978

5/882264

William A. Krause - Houston TX
Evan P. Shea - Kansas City MO

Omnipure, Inc. - Houston TX

C02B 182

204149

A continuous system for disinfecting waste water streams, such as sewage and streams containing organic matter and removing suspended solids therefrom is disclosed. A waste water stream is passed into an electrolytic cell open to the atmosphere and between a series of electrically charged parallel electrode plates. A controlled amount of electrolyte such as sodium chloride is added to the waste water stream before it passes through the electrolytic cell. During passage between the electrode plates a foam is generated which entrains suspended selected nutrient solids contained in the waste water stream, the foam removed by skimming and/or suction means. The treated water discharged from the electrolytic cell is filtered to remove additional non-nutrient suspended solids not entrained with the foam. A portion of the treated water from the electrolytic cell is recycled and reinjected into the influent stream. Control means are included to control residual chlorine in the effluent discharged from the electrolytic cell while maintaining high dissolved oxygen in the effluent.

4292175, Sep 29, 1981

Aug 3, 1979

6/063581

William A. Krause - Houston TX
Leonard E. Langeland - Houston TX

Omnipure, Inc. - Houston TX

C02F 146, C02F 176

210192

A compact, relatively small unit for treatment of wastewater for discharge into maritime waters is disclosed. The wastewater is received in a surge or retention tank and is delivered by gravity flow or pumped to a macerator for comminution of the solids content of the wastewater. Prior to entering the macerator, salt water on a controlled flow basis is added to the wastewater in sufficient amounts to insure a high enough salt content for use as the electrolyte in an electrocatalytic cell. From the macerator the wastewater to be treated is directed into a vertically oriented, elongated, electrocatalytic cell having a plurality of parallel, closely spaced electrodes therein positioned parallel to the flow of wastewater therethrough. The wastewater is directed through the electrocatalytic unit. The end electrodes of the spaced electrode plates are connected to a source of direct current sufficient to generate chlorine, oxygen and other treating chemicals in situ.

7000427, Feb 21, 2006

Aug 8, 2003

10/636659

James A. Mathias - Columbus OH, US
Ravi Arora - Dublin OH, US
Wayne W. Simmons - Dublin OH, US
Jeffrey S. McDaniel - Columbus OH, US
Anna Lee Tonkovich - Marysville OH, US
William A. Krause - Houston TX, US
Laura J. Silva - Dublin OH, US
Dongming Qiu - Dublin OH, US

Velocys, Inc. - Plain City OH

F25J 1/00

62612, 62611, 165165

This invention relates to a process for cooling or liquefying a fluid product (e. g. , natural gas) in a heat exchanger, the process comprising: flowing a fluid refrigerant through a set of refrigerant microchannels in the heat exchanger; and flowing the product through a set of product microchannels in the heat exchanger, the product flowing through the product microchannels exchanging heat with the refrigerant flowing through the refrigerant microchannels, the product exiting the set of product microchannels being cooler than the product entering the set of product microchannels. The process has a wide range of applications, including liquefying natural gas.

5689032, Nov 18, 1997

Nov 22, 1994

8/343784

William A. Krause - Houston TX
Ronald C. Pasadyn - Houston TX

Krause/Pasadyn, a Partnership - Houston TX

C07C 700, C10G 4922, F25J 300

585802

A process and apparatus for separating a hydrocarbon gas into fractions containing predominant portions of hydrogen, methane, and C. sub. 2 and heavier components, where the methane and lighter components are separated from the feed gas under non-cryogenic conditions to produce a hydrogen-rich fraction, a first fraction rich in C. sub. 2 and heavier components and a hydrocarbon-rich fraction, the hydrocarbon-rich fraction then being separated under cryogenic conditions into a second fraction rich in C. sub. 2 and heavier components and a methane-rich fraction.

4287954, Sep 8, 1981

Aug 20, 1979

6/068077

William F. Krause - Houston TX
Edwin C. Turner - Houston TX

Hydril Company - Los Angeles CA

E21B 4312

166322

A subsurface safety valve having a flapper-like pivoting closure element that is moved to and from the open and closed positions by a reciprocating operator assembly. When moved to the open position, the closure element is pivoted out of the flow path to protect it from possible damage.

4249599, Feb 10, 1981

Oct 29, 1979

6/089184

William F. Krause - Houston TX

Hydril Company - Los Angeles CA

E21B 3410, E21B 3416, E21B 4312

166 72

A subsurface well safety apparatus for controlling control fluid used to operate subsurface safety valves mounted in well production tubing. The apparatus is operated by a shifting tool between a first position enabling a pair of tandem subsurface safety valves to operate together and a second position to isolate one of the subsurface safety valves from the control fluid. The apparatus is shifted between positions by a tool movable through the production tubing to the subsurface location.