Patents by Inventor David Edward Shoff

David Edward Shoff has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Magnetostrictive linear displacement transducer for a vehicle strut suspension
    Patent number: 6707290
    Abstract: A vehicle suspension strut is disclosed that includes a housing having a chamber and a piston slidably disposed in the chamber. A piston rod is connected to the piston and extends out of the housing. The piston rod includes a bore extending longitudinally therein. A magnetostrictive transducer provides an output signal indicative of the piston position with respect to the housing. The magnetostrictive transducer includes a magnetostrictive waveguide disposed in the bore and a magnet joined to the housing that is operably coupled to the magnetostrictive waveguide and the magnetostrictive waveguide abruptly terminates at one end.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: March 16, 2004
    Assignee: MTS Systems Corporation
    Inventors: David S. Nyce, Arnold F. Sprecher, Jr., David Edward Shoff
  • MAGNETOSTRICTIVE LINEAR DISPLACEMENT TRANSDUCER FOR A VEHICLE STRUT SUSPENSION
    Publication number: 20030197502
    Abstract: A vehicle suspension strut is disclosed that includes a housing having a chamber and a piston slidably disposed in the chamber. A piston rod is connected to the piston and extends out of the housing. The piston rod includes a bore extending longitudinally therein. A magnetostrictive transducer provides an output signal indicative of the piston position with respect to the housing. The magnetostrictive transducer includes a magnetostrictive waveguide disposed in the bore and a magnet joined to the housing that is operably coupled to the magnetostrictive waveguide and the magnetostrictive waveguide abruptly terminates at one end.
    Type: Application
    Filed: May 27, 1999
    Publication date: October 23, 2003
    Inventors: DAVID S. NYCE, ARNOLD F. SPRECHER, DAVID EDWARD SHOFF