John M Kaufman

US Patent:

8366808, Feb 5, 2013

Filed:

Jun 14, 2010

Appl. No.:

12/815292

Inventors:

Bret Hettinger Wolz - Gillette WY, US
John Mayer Kaufman - Centennial CO, US

Assignee:

Hycap Energy LLC - Gillette WY

International Classification:

B01D 19/00

US Classification:

95248, 95249, 95260, 96194, 96204, 96205, 96215, 2107477, 21017007

Abstract:

A method and apparatus for separating a first fluid from a fluid mixture. In one embodiment water containing methane is passed through an agitation chamber with a plate at the chamber's proximal and distal ends. Both plates have orifices permitting the mixed fluid to pass into and out of the agitation chamber. In one embodiment, the mixed fluid rotates about its axis of flow through the agitation chamber. In one embodiment, the mixed fluid passes through a separation chamber having a plurality of baffles that promote separation of the methane from the methane/water mixture. In one embodiment, the separated methane is removed from the water in a collection chamber that facilitates gravity separation of the mixed fluids. In one embodiment, liquid hydrocarbon is removed from water.

US Patent:

20130192466, Aug 1, 2013

Filed:

Jan 10, 2013

Appl. No.:

13/738821

Inventors:

Bret Hettinger Wolz - Gillette WY, US
John Mayer Kaufman - Centennial CO, US

International Classification:

B01D 19/00

US Classification:

95262, 95260, 96220

Abstract:

A method and apparatus for separating a first fluid from a fluid mixture. In one embodiment water containing methane is passed through an agitation chamber with a plate at the chamber's proximal and distal ends. Both plates have orifices permitting the mixed fluid to pass into and out of the agitation chamber. In one embodiment, the mixed fluid rotates about its axis of flow through the agitation chamber. In one embodiment, the mixed fluid passes through a separation chamber having a plurality of baffles that promote separation of the methane from the methane/water mixture. In one embodiment, the separated methane is removed from the water in a collection chamber that facilitates gravity separation of the mixed fluids.

US Patent:

20150040548, Feb 12, 2015

Filed:

Aug 9, 2013

Appl. No.:

13/963150

Inventors:

- Peoria IL, US
Eric P. Jakubiak - Aurora IL, US
Dennis R. Barber - Plainfield IL, US
John J. Kaufman - Yorkville IL, US
Edward W. Mate - Manhattan IL, US
Scott D. Vollmer - Naperville IL, US
Michael D. Hudson - Mount Zion IL, US
Moses I. Akpan - Moline IL, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

F15B 15/02

US Classification:

60327, 60420

Abstract:

A hydraulic fan circuit is provided. The hydraulic fan circuit includes a tank, a motor having a fluid inlet and a fluid outlet and a pump to draw fluid at a low pressure from the tank and discharge the fluid at elevated pressures to the motor via the fluid inlet. The hydraulic fan circuit further includes a directional control valve disposed between the fluid outlet of the motor and the tank. The directional control valve is operable to move between a flow blocking position and a flow passing position. Further, the directional control valve is configured to reduce a positive speed of the motor below a lowest positive speed attainable through control of pump output. Furthermore, the hydraulic fan circuit includes a pressure control circuit configured to provide a pilot fluid flow at varying pressure to move the directional control valve.

US Patent:

20140117750, May 1, 2014

Filed:

Oct 31, 2012

Appl. No.:

13/664471

Inventors:

- Peoria IL, US
John J. Kaufman - Yorkville IL, US
Joseph E. Tabor - Forsyth IL, US

Assignee:

CATERPILLAR INC. - Peoria IL

International Classification:

B60T 8/176
B60T 8/34

US Classification:

3031191

Abstract:

An antilock brake system for a vehicle may include a controller that is linked to a brake pedal sensor. The brake pedal sensor may be linked to a brake pedal. The brake pedal may be coupled to a normally closed brake pedal valve. The brake pedal valve may include an inlet in communication with a source of pressurized hydraulic fluid and an outlet in communication with a normally opened isolation valve. The isolation valve may be in communication with one or more main control valve systems and may be linked to a controller which maintains the isolation valve in a closed position during normal operating conditions. The isolation valve then shifts to an open position in the event current supply by the controller is interrupted as a result of an electrical failure or malfunction of the controller.