David J Jensen

US Patent:

6373712, Apr 16, 2002

Filed:

Jun 5, 1998

Appl. No.:

09/092169

Inventors:

Robert Thomas Bailis - Cary NC
David John Jensen - Raleigh NC
Charles Steven Lingafelt - Durham NC
Brian Scott Oakley - Burlington NC

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H05K 500

US Classification:

361756, 361759, 361802, 439377

Abstract:

A frame for inserting and/or removing circuit cards from the housing of a machine includes a circuit card carrier connected to a locking CAM slide that is disposed to move within the channel of an actuator bar. A slot with a locking feature is fabricated on the locking CAM slide. A pin extending from a surface of the actuator bar into the channel coacts with the locking mechanism to lock the actuator bar relative to the locking CAM.

US Patent:

6603664, Aug 5, 2003

Filed:

Sep 23, 2002

Appl. No.:

10/252280

Inventors:

Pat Gallarelli - Pittsboro NC
David John Jensen - Raleigh NC
Kevin Duane Johnson - Wake NC

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H05K 700

US Classification:

361747, 361686, 361728, 361730, 361732, 361740, 439372

Abstract:

An electronic circuits module includes a cover and a base. A lever and cam assembly is rotatably attached to the cover, and the cam includes first and second lobes. The lever and cam assembly is rotatable between first, second and third positions. In the first position, the first lobe can be inserted through an eccentric opening in the base, and then rotated to the second position to lock the cover to the base. In the third position, the module can be inserted into the computer and when the lever and cam assembly is moved back to the second position, the second lobe locks the module in the computer. A mechanism in the computer inhibits the movement of the lever and cam assembly into the first position, thereby preventing the disconnection of the base from the cover when the module is installed in the computer.

US Patent:

7295446, Nov 13, 2007

Filed:

Dec 30, 2005

Appl. No.:

11/323883

Inventors:

Martin J. Crippen - Apex NC, US
William G. Holland - Cary NC, US
James E. Hughes - Apex NC, US
David J. Jensen - Raleigh NC, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H01R 12/16

US Classification:

361788, 439377, 439 64

Abstract:

A computer system includes a plurality of blade servers, a midplane, a supplemental midplane, and a peripheral device separate from the blade servers. The midplane includes a plurality of connectors connecting the midplane to the plurality of blade servers. The supplemental midplane is separate from the midplane and includes a body, a plurality of connectors, and a peripheral connector. The plurality of connectors are attached to the body and connect the supplemental midplane to the plurality of blade servers. The peripheral connector is attached to the body and connects the supplemental midplane to the peripheral device. The plurality of connectors of the supplemental midplane communicate with the peripheral connector of the supplemental midplane. The plurality of connectors of the supplemental midplane are configured to be removably connectable to the midplane.

US Patent:

7344439, Mar 18, 2008

Filed:

Mar 6, 2006

Appl. No.:

11/368578

Inventors:

Matthew S. Henry - Raleigh NC, US
David J. Jensen - Raleigh NC, US
Seth D. Lewis - Cary NC, US
Peter A. Smith - Cary NC, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H05K 7/20
H05K 5/00
G06F 1/20

US Classification:

454184, 361687, 361695

Abstract:

A system, method, and apparatus for distributing air in a blade server are disclosed. Embodiments may include a rotating damper having a damper door, sliding door, and connecting rod. The damper door may be rotatably attached to a blade server having a plurality of blade slots for receiving blades and may rotate between a blocking position and a flat position, where the damper door impedes air through a blade slot when in the blocking position. The sliding door may move between an open position and a closed position, where the sliding door allows airflow through an air opening while in the open position and blocks airflow through the air opening while in the closed position. A further embodiment may include an extension spring to apply a pulling force to the sliding door and a kick up spring to apply a pushing force to the damper door in the flat position.

US Patent:

D565560, Apr 1, 2008

Filed:

Jul 24, 2006

Appl. No.:

29/247976

Inventors:

Roland K. Alo - Raleigh NC, US
Matthew S. Henry - San Diego CA, US
David J. Jensen - Raleigh NC, US
Seth D. Lewis - Rochester MN, US
Timothy A. Meserth - Durham NC, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

1402

US Classification:

D14313

US Patent:

7401263, Jul 15, 2008

Filed:

May 19, 2005

Appl. No.:

11/132265

Inventors:

Vaughn Robert Evans - Cary NC, US
David L. Jensen - Peekskill NY, US
Ildar Khabibrakhmanov - Syosset NY, US
Stephen Restivo - Chapel Hill NC, US
Christopher D. Ross - Cary NC, US
Emmanuel Yashchin - Yorktown Heights NY, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 11/00

US Classification:

714 47, 702184, 702187

Abstract:

A system and method for detecting trends in time-managed lifetime data for products shipped in distinct vintages within a time window. Data is consolidated from several sources and represented in a form amenable to detection of trends using a criterion for measuring failure. A weight is applied to the failure measures, the weight increasing over the time the products are in the time window. A function of weighted failures is used to define a severity index for proximity to an unacceptable level of failures, and an alarm signal is triggered at a threshold level that allows the level of false alarms to be pre-set.

US Patent:

7416481, Aug 26, 2008

Filed:

Mar 6, 2006

Appl. No.:

11/368778

Inventors:

Bruce E. Baker - Round Rock TX, US
Matthew S. Henry - Raleigh NC, US
David J. Jensen - Raleigh NC, US
Seth D. Lewis - Cary NC, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H05K 7/20
F24F 13/08
F24F 7/00

US Classification:

454184, 454259, 454353, 361687, 361695

Abstract:

A system, method, and apparatus for preventing exhaust backflow into a blower are disclosed. Embodiments may include a blower system with an invertible blower chassis having a blower exhaust to direct airflow from the blower chassis at an airflow angle. The system may also include a backflow damper frame attached to the blower chassis and positioned to receive airflow from the blower chassis and one or more vertical damper vanes rotatably attached to the backflow damper frame. Each damper vane may freely rotate between a first, closed position and a second, open position. The damper vanes may block airflow into the blower exhaust when in the closed position and may freely rotate to a position where the damper vanes are substantially parallel to the airflow from the blower exhaust. The damper vanes may each include a vane pin to rotatably attach to frame holes of the backflow damper frame.

US Patent:

7549917, Jun 23, 2009

Filed:

Jan 16, 2008

Appl. No.:

12/014911

Inventors:

Matthew S. Henry - Raleigh NC, US
David J. Jensen - Raleigh NC, US
Seth D. Lewis - Cary NC, US
Peter A. Smith - Cary NC, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H05K 7/20
H05K 5/00
G06F 1/20

US Classification:

454184, 361687, 361695

Abstract:

A system, method, and apparatus for distributing air in a blade server are disclosed. Embodiments may include a rotating damper having a damper door, sliding door, and connecting rod. The damper door may be rotatably attached to a blade server having a plurality of blade slots for receiving blades and may rotate between a blocking position and a flat position, where the damper door impedes air through a blade slot when in the blocking position. The sliding door may move between an open position and a closed position, where the sliding door allows airflow through an air opening while in the open position and blocks airflow through the air opening while in the closed position. A further embodiment may include an extension spring to apply a pulling force to the sliding door and a kick up spring to apply a pushing force to the damper door in the flat position.