David C Ford

US Patent:

6405445, Jun 18, 2002

Filed:

Jul 28, 2000

Appl. No.:

09/627955

Inventors:

David B. Ford - Denton TX

Assignee:

Paccar INC - Bellevue WA

International Classification:

G01B 524

US Classification:

3320315, 33600, 33608, 33613

Abstract:

A tool for indicating whether a measured ride height of a vehicle is within a tolerance range for a specified ride height is provided. The measured ride height is equal to a vertical distance between a reference surface of the vehicle, such as a vehicle frame rail at a suspension centerline, and a rotational axis of a vehicle wheel. The tool has a support member, a first measurement member, and a second measurement member.

US Patent:

6507644, Jan 14, 2003

Filed:

Jun 8, 1999

Appl. No.:

09/327727

Inventors:

Karl Henderson - Highland Village TX
David Ford - Brentwood TN
James Duke Bond - Allen TX
Kamran Mir - Plano TX

Assignee:

WorldCom, Inc. - Clinton MS

International Classification:

H04M 1500

US Classification:

3791142, 37911417, 37911421

Abstract:

Systems and methods for facilitating the use of a pre-paid card linked to a stored value card account (e. g. , a debit type card associated with an available, remaining money value, etc. ). The system and method include and involve a data storage system for storing data related to a pre-paid card and a stored value card account. The stored value card account is maintained and managed by a stored value card processing system. The stored value card processing system stores a money value applicable to purchases and telephone calls. The system and method also include and involve a pre-paid telephone calling card processing system that is coupled to the data storage system and is configured to receive a request to initiate a telephone call in relation to the prepaid telephone calling card and to instruct the stored value card processing system to adjust the money value in relation to the telephone call.

US Patent:

D589420, Mar 31, 2009

Filed:

Dec 14, 2007

Appl. No.:

29/298927

Inventors:

Kunjithapadam Raghavendran - Denton TX, US
Scott M. Conway - Flower Mound TX, US
Jon F. Acton - Roanoke TX, US
David B. Ford - Denton TX, US
Richard R. Mihelic - Lewisville TX, US
Jeffrey P. Smith - Prosper TX, US

Assignee:

PACCAR Inc - Bellevue WA

International Classification:

1208

US Classification:

D12181, D12401

US Patent:

D597908, Aug 11, 2009

Filed:

Dec 14, 2007

Appl. No.:

29/298928

Inventors:

Kunjithapadam Raghavendran - Denton TX, US
Scott M. Conway - Flower Mound TX, US
Derek S. Sancer - Denton TX, US
David B. Ford - Denton TX, US
Richard R. Mihelic - Lewisville TX, US
Jeffrey P. Smith - Prosper TX, US

Assignee:

PACCAR Inc - Bellevue WA

International Classification:

1216

US Classification:

D12181

US Patent:

20060103103, May 18, 2006

Filed:

Nov 12, 2004

Appl. No.:

10/988140

Inventors:

Jonathan Land - Flower Mound TX, US
Donald Winn - Corinth TX, US
Eric Schneck - Burlington VT, US
David Van Duker - Camano Island WA, US
David Ford - Denton TX, US

International Classification:

B60G 11/46
F16F 1/26

US Classification:

280124163, 280124165, 280124175, 267260000

Abstract:

A low part count, light weight, low-rise air leaf suspension system is provided. One end of the leaf spring has a formed eye pivotally mounted by a pin to a lightweight bracket mounted to the vehicle frame. The leaf spring is tapered toward the ends to reduce weight. Light weight clamping blocks attach an axle to a central portion of the leaf spring. The other end of the leaf spring is curved down and laterally inward so that the end of the leaf spring is positioned directly underneath the vehicle frame and the air spring may be connected directly between the leaf spring and frame.

US Patent:

48770930, Oct 31, 1989

Filed:

Mar 3, 1988

Appl. No.:

7/163583

Inventors:

David B. Ford - Frisco TX
James E. Lynch - Dallas TX
Leroy R. Rateike - Rockford IL

Assignee:

National-Oilwell - Houston TX

International Classification:

E21B 302

US Classification:

175113

Abstract:

A spring actuated guide system for a top driven drilling machine. Rollers for guiding the drilling machine are mounted onto springs which urge the rollers into contact with support surfaces on parallel tracks within a derrick. If the tracks become misaligned, the springs allow for the misalignment with low roller loads thereby providing limited rotational movement of the drilling machine relative to the tracks. Premature failure of the roller bearings is prevented and wear on the rollers and tracks is reduced.

US Patent:

48134988, Mar 21, 1989

Filed:

Mar 3, 1988

Appl. No.:

7/163580

Inventors:

James E. Lynch - Dallas TX
David B. Ford - Frisco TX

Assignee:

National-Oilwell - Houston TX

International Classification:

E21B 1906

US Classification:

175113

Abstract:

An active counterbalance for suspending a power swivel from a traveling block. The power swivel includes a motor drive assembly for rotating a drill string and a handling system for supporting a drill pipe. The counterbalance includes a motor which provides means for biasing the load capacity of the counterbalance when supporting the power swivel to allow vertical displacement of the power swivel relative to the traveling block. The counterbalance prevents damage to connecting or sealing surfaces when adding pipe to or removing pipe from the drill string because most of the weight of the power swivel and pipe suspending from the handling system is transferred to the counterbalance.