Patents Assigned to Richard A. Serlin
  • 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