James A Crider

US Patent:

20080072850, Mar 27, 2008

Filed:

May 31, 2007

Appl. No.:

11/809361

Inventors:

James Crider - Waterford MI, US

International Classification:

F01P 5/10

US Classification:

123041460

Abstract:

A compact water pump assembly has a shaft extending from a first end to a second end. An annular groove is located on the shaft. A housing member is located about the shaft and intermediate the first and second ends. An impeller is coupled to the second end of the shaft. A plurality of bearing members are arranged in a single-row within the groove. The bearing members rotatably support the shaft in the housing. In addition, each bearing member includes a radial centerline. A pulley is coupled to the first end of the shaft. The pulley is capable of engaging a drive belt such that the centerline of the belt driving surface is in substantial alignment with the bearing centerlines.

US Patent:

20110315389, Dec 29, 2011

Filed:

Jun 29, 2010

Appl. No.:

12/826020

Inventors:

James Alan Crider - Houston TX, US
Gregory L. Hern - Porter TX, US
Charles W. Pleasants - Cypress TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 34/14

US Classification:

166329

Abstract:

A tool for use in a wellbore which includes a housing having an axial flow bore and a piston sleeve moveably disposed within the flow bore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a ball seat. The tool can be moved between first and second operating positions with the use of actuating balls of different sizes that can be landed upon the ball seat.