William G Krause

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.

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.

44375220, Mar 20, 1984

Feb 8, 1982

6/346674

William F. Krause - Spring TX
Mark E. Hopmann - Houston TX

Baker Oil Tools, Inc. - Orange CA

E21B 2302

166382

The disclosure provides a method and apparatus for effecting the locking of a well tool in any selected one of a plurality of identical nipples provided in spaced relationship along a well tubing string. Each nipple is provided with an annular recess to receive expandable locking dogs carried by the locking mechanism and an upwardly facing no-go shoulder which is of no lesser diameter than the bore of the tubular string. The locking mechanism is shearably mounted on a running tool and incorporates an expansible C-ring which has a downwardly facing shoulder engagable, when expanded, with the no-go shoulder of the selected locking nipple. The expansible C-ring is held in a retracted position by a collet having spring arms which pass freely downwardly through any or all of the nipples but, when moved upwardly through a selected nipple, engage a surface on the nipple and pull the collet out of its retaining position with respect to the expansible C-ring. The C-ring expands into engagement with the upwardly facing no-go shoulder, thus permitting the application of a downward force to the locking mechanism which effects the shearing of shear pins holding a camming mandrel in an inoperative position with respect to the locking dogs. The camming mandrel is then moved downwardly by the running tool to expand the locking dogs into engagement with the locking recess, following which, the running tool may be removed from the locking mechanism by an upward pull which shears a second shear pin.

45109958, Apr 16, 1985

Feb 22, 1983

6/468421

William F. Krause - Spring TX
Mark E. Hopmann - Houston TX

Baker Oil Tools, Inc. - Orange CA

E21B 2302

166217

A locking apparatus for positioning a well tool within a subterranean well bore and comprising a primary locking member attached to the well tool; a nipple incorporable in a subterranean well conduit; and running and retrieving tools for positioning the lock member is disclosed. The lock has a no-go shoulder for initially positioning the lock adjacent the nipple and radially expandable locking dogs for carrying both upwardly and downwardly directed forces upon full expansion thereof after the no-go shoulder has been disengaged. At least two interlocking members disengagable only by separate manipulations maintain the locking dogs in a radially expanded fully engaged position. A retrieving tool having a rotational alignment means to position the tool relative to the lock is used to separately manipulate the interlocking members and to pull the disengaged lock from the well.

42921759, 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.

41793471, 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.

42879540, 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.

45835918, Apr 22, 1986

Dec 31, 1984

6/688069

William F. Krause - Spring TX
Mark E. Hopmann - Houston TX

Baker Oil Tools, Inc. - Orange CA

E21B 2302

166217

A locking apparatus for positioning a well tool within a subterranean well bore and comprising a primary locking member attached to the well tool; a nipple incorporable in a subterranean well conduit; and running and retrieving tools for positioning the lock member is disclosed. The lock has a no-go shoulder for initially positioning the lock adjacent the nipple and radially expandable locking dogs for carrying both upwardly and downwardly directed forces upon full expansion thereof after the no-go shoulder has been disengaged. At least two interlocking members disengageable only by separate manipulations maintain the locking dogs in a radially expanded fully engaged position. A retrieving tool having a rotational alignment means to position the tool relative to the lock is used to separately manipulate the interlocking members and to pull the disengaged lock from the well.