David A Brock

US Patent:

7726000, Jun 1, 2010

Filed:

May 17, 2005

Appl. No.:

11/130897

Inventors:

Phillip J. Bormuth - McComb OH, US
David A. Brock - Toledo OH, US
Philip A. Eversole - Toledo OH, US
Ryan W. Laskey - Toledo OH, US
Nelson Wagner - Holland OH, US

Assignee:

Dana Automotive Systems Group, LLC - Toledo OH

International Classification:

B21D 39/00

US Classification:

29521

Abstract:

A method is provided for securing first and second splined members together, such as a midship tube shaft to an end fitting in a driveshaft assembly, to prevent relative axial movement from occurring therebetween. Initially, a first splined member is provided that includes an outer surface having a recess and a plurality of external splines provided thereon. Also, a second splined member is provided that includes an inner surface a plurality of internal splines provided thereon. The inner surface of the second splined member is disposed about the outer surface of the first splined member such that the plurality of internal splines cooperate with the plurality of external splines. Then, a portion of the second splined member is deformed into the recess of the first splined member to secure the first and second splined members together, while preventing relative axial movement from occurring therebetween.

US Patent:

8479813, Jul 9, 2013

Filed:

Dec 16, 2009

Appl. No.:

12/639483

Inventors:

Verlin Dannar - Sheridan WY, US
Robert S. Pfeiffer - Parker CO, US
Roland P. DeBruyn - Highlands Ranch CO, US
Shane Bower - Golden CO, US
Glenn A. Ulrich - Rolla MO, US
Jeffrey L. Weber - Denver CO, US
David Brock - Littleton CO, US
Jim Ford - Gillette WY, US
Travis Meyers - Gillette WY, US
Mark Finkelstein - Morrison CO, US

Assignee:

LUCA Technologies, Inc. - Golden CO

International Classification:

E21B 43/22

US Classification:

166246, 1663051

Abstract:

Methods to enhance biogenic gas production in an anaerobic geologic formation containing carbonaceous material may include the steps of accessing the anaerobic formation, increasing a rate of production of the biogenic gases in the anaerobic formation, and flowing formation water within the anaerobic formation after the increase in the production of biogenic gases. Methods to redistribute formation water in an anaerobic geologic formation containing carbonaceous material may include the steps of locating a reservoir of the formation water within the anaerobic formation, forming at least one channel between the reservoir and at least a portion of the carbonaceous material, and transporting the formation water from the reservoir to the carbonaceous material through the channel. The methods may also include the accumulation of biogenic gas in an anaerobic geologic formation to enhance biogenic gas production.