David Edw Conrad

US Patent:

6682130, Jan 27, 2004

Filed:

Feb 6, 2002

Appl. No.:

10/068521

Inventors:

James H. Lustig - Greensboro NC
David W. Conrad - Kernersville NC

Assignee:

Volvo Trucks North America, Inc. - Greensboro NC

International Classification:

B60J 506

US Classification:

29619011, 296202, 296147, 2961469, 29614612, 29614613

Abstract:

An over the highway vehicle having a body defining an occupant space and an access opening to the space is provided. A passenger access door is pivotally connected to the body. The door has pivotally connected upper and lower sections and is pivotal relative to the body between a closed position and partial and full open positions allowing unobstructed passage into and out of the space. The lower section is pivotal relative to the upper section between an aligned condition for closing the opening and a condition wherein the panels are generally juxtaposed. A tether is interposed between the cab and the lower section for limiting pivotal movement of the door when the door is in its aligned condition to the partially open position and permitting movement of the door to the full open position when the door is in the juxtaposed condition.

US Patent:

6977180, Dec 20, 2005

Filed:

Aug 28, 2002

Appl. No.:

10/229286

Inventors:

Homme W. Hellinga - Durham NC, US
David W. Conrad - Durham NC, US
David E. Benson - Ferndale MI, US

Assignee:

Duke University - Durham NC

International Classification:

G01N033/543

US Classification:

436518, 204400, 204403, 422 8201, 422 8202, 422 8203, 435 5, 435 6, 435 72, 435 731, 435 14, 4352871, 4352872, 436149, 436524, 436525, 436806, 436815

Abstract:

The present invention relates, in general, to biosensors and, in particular, to bioelectronic sensors comprising a macromolecule immobilized on an electrode surface so that a redox cofactor that is site-specifically attached to the surface of the macromolecule is between the macromolecule and electrode surface ligand-mediated conformational changes alter the geometry of interaction between the redox cofactor and the electrode surface resulting in a change in electronic coupling between the cofactor and electrode.

US Patent:

20050012344, Jan 20, 2005

Filed:

Jul 15, 2003

Appl. No.:

10/619407

Inventors:

Michael Sorrells - Greensboro NC, US
David Conrad - Kernersville NC, US

International Classification:

E05C001/12

US Classification:

292169000

Abstract:

A latch assembly for moving a latching pin a vertical distance between a latch position and an unlatch position. A rotatable handle defines a plane of rotation when rotated about an axis of rotation and a latching pin is connected to the rotatable handle. The central axis of the latching pin is perpendicular to the plane of rotation and coincident with the axis of rotation. A latching pin guide member engages and guides the latching pin along the central axis in response to rotation of the handle.

US Patent:

20090048430, Feb 19, 2009

Filed:

Nov 26, 2007

Appl. No.:

11/987006

Inventors:

Homme W. Hellinga - Durham NC, US
James J. Smith - Durham NC, US
David W. Conrad - Durham NC, US

Assignee:

DUKE UNIVERSITY - Durham NC

International Classification:

C07K 1/00

US Classification:

530335

Abstract:

The present invention relates, in general, to protein modifications and, in particular, to a method of effecting site-specific labeling of proteins with covalently coupled reporter groups. The invention further relates to a method of effecting orientation-specific immobilization of proteins on a solid surface. The invention also relates to products produced by such methods.