Patents Assigned to Alloying Surfaces, Inc.
  • Method and apparatus for relieving residual stresses
    Patent number: 5242512
    Abstract: An apparatus for relieving residual stresses and stabilizing modal behavior in a workpiece, and/or analyzing change in modal behavior of a workpiece to detect buildup of residual stresses. The apparatus includes an exciter for vibrating the workpiece. In addition, the apparatus further includes a computer for varying the frequency at which the workpiece is vibrated in response to the fast fourier transform of the frequency response of the workpiece.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: September 7, 1993
    Assignee: Alloying Surfaces, Inc.
    Inventors: William H. Bagley, James R. Rosbe, Douglas G. Wilson
  • Surface alloying apparatus including safety circuit
    Patent number: 4205211
    Abstract: An improved apparatus for alloying a surface of a workpiece of the type in which an electrode, formed of the alloying material, is connected to a pulse generating machine which creates repetitive spark discharges between the electrode and the workpiece when the electrode is in engagement with the workpiece, the improvement being a safety circuit which prevents energization of the electrode until it is engaged with the workpiece.
    Type: Grant
    Filed: November 23, 1977
    Date of Patent: May 27, 1980
    Assignees: Alloying Surfaces, Inc., Richard A. Serlin
    Inventors: Richard A. Serlin, Thomas A. Field