Mitchell C Williams

US Patent:

7817006, Oct 19, 2010

Filed:

Jul 21, 2009

Appl. No.:

12/507015

Inventors:

Larry W. Fullerton - New Hope AL, US
Mark D. Roberts - Huntsville AL, US
Mitchell Williams - Madison AL, US

Assignee:

Cedar Ridge Research, LLC. - New Hope AL

International Classification:

H01F 7/02
H01F 7/20

US Classification:

335306, 335285

Abstract:

First and second components may be precisely attached to form an apparatus. In an example embodiment, a first component includes a first field emission structure, and a second component includes a second field emission structure. The first and second components are adapted to be attached to each other with the first field emission structure in proximity to the second field emission structure such that the first and second field emission structures have a predetermined alignment with respect to each other. Each of the first and second field emission structures include multiple field emission sources having positions and polarities relating to a predefined spatial force function that corresponds to the predetermined alignment of the first and second field emission structures within a field domain. The first and second field emission structures are configured responsive to at least one precision criterion to enable a precision attachment.

US Patent:

7961068, Jun 14, 2011

Filed:

Sep 30, 2010

Appl. No.:

12/894837

Inventors:

Larry W. Fullerton - New Hope AL, US
Mark D. Roberts - Hunstville AL, US
Mitchell Williams - Madison AL, US

Assignee:

Cedar Ridge Research, LLC. - New Hope AL

International Classification:

H01F 7/02

US Classification:

335306, 335285, 114127, 114162, 248548, 440 56

Abstract:

A breakaway device for locking connected objects in relation to one another comprises a first magnetic field structure attached to a first object and a second magnetic field structure attached to a second object. The first magnetic field structure becoming attached to the second magnetic field structure when substantially aligned. The first structure and the second structure becoming detached when subjected to a force that overcomes a spatial force between the first magnetic field structure and the second magnetic field structure. The first magnetic field structure and the second magnetic field structure having magnetic field sources with polarities and positions in accordance with a code corresponding to a desired spatial force function.