James B Paul

US Patent:

62704273, Aug 7, 2001

Filed:

Nov 12, 1998

Appl. No.:

9/190897

Inventors:

J. Todd Derbin - Palo Alto CA
David A. Ferrera - San Francisco CA
James W. Paul - Palos Verdes Estates CA

International Classification:

A63B 3706

US Classification:

473361

Abstract:

A superelastic strand used for windings in a golf ball or as strings for a racquet of the type used for racquet sports. The strand is made with at least one fiber of a superelastic material which may be wound into a cable incorporating other fibers of polymeric or superelastic materials. The superelastic material used in the strand can be a nickel-titanium alloy which is heat treated to provide superelastic qualities.

US Patent:

20170281909, Oct 5, 2017

Filed:

Apr 5, 2016

Appl. No.:

15/091443

Inventors:

- Kalamazoo MI, US
Stephen Porter - Piedmont CA, US
James Paul - Salt Lake City UT, US

International Classification:

A61M 25/09
A61M 25/10

Abstract:

A method of forming a fenestrated tubular support member includes determining a first iso-stiffness curve corresponding to a first function of beam length versus ring width for the first stiffness; determining a second iso-stiffness curve corresponding to a second function of beam length versus ring width for the second stiffness; determining an iso-volume curve corresponding to a third function of beam length versus ring width for a given fenestration volume; identifying a first intersection point where the iso-volume curve intersects the first iso-stiffness curve; and identifying a second intersection point where the iso-volume curve intersects the second iso-stiffness curve. The first section ring width and first section beam length are determined from the first intersection point, and the second section ring width and second section beam length are determined from the second intersection point.