Daniel I Sanders

US Patent:

20110056727, Mar 10, 2011

Filed:

Sep 8, 2009

Appl. No.:

12/584389

Inventors:

Daniel Dwain Sanders - Southworth WA, US

International Classification:

H01B 3/30

US Classification:

174110 R

Abstract:

A transmission cable comprises a conductive strand surrounded by an insulating casing. The conductive strand includes an inner core of a ferromagnetic material, a highly conductive metal skin disposed about the inner core, and a tinning disposed there between the highly conductive metal and the inner core.

US Patent:

52149480, Jun 1, 1993

Filed:

Dec 18, 1991

Appl. No.:

7/812137

Inventors:

Daniel G. Sanders - Seattle WA
Bruce M. Burg - Louisville CO

Assignee:

The Boeing Company - Seattle WA

International Classification:

B21D 2602

US Classification:

72 58

Abstract:

A method for forming metal parts from superplastic metal alloys uses axial compression of the blank starting material. A blank of the superplastic metal alloy is enclosed within a die press. The blank is generally tubular, although not necessarily circular, and has an aperture at each end. The ends of the blank are enclosed within correspondingly shaped sections of a cavity within the die press, while the center of the blank is disposed within a central cavity defining a desired shape of the metal part to be formed. Each end of the blank is then sealed with a ram or stop member, and the die press and blank are heated to a forming temperature that is within the superplastic temperature range of the metal alloy. Gas is supplied under pressure to the inside of the blank to produce an outward pressure urging the blank to deform outwardly within the central cavity of the die press. The blank is simultaneously compressed axially with one or both of the rams or stops, to cause additional superplastic metal alloy to be supplied to the central cavity as the blank undergoes superplastic flowing, so that thinning of the blank is limited during the formation of the part.