Patents by Inventor Ardee H. Freeman

Ardee H. Freeman 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).

  • Method and means for continuous surface treatment
    Patent number: 4037364
    Abstract: In order to clean work pieces such as castings a work piece is loaded into a cage and continuously rotated while being continuously advanced past a means for propelling particulate cleaning means at the work piece.
    Type: Grant
    Filed: June 9, 1975
    Date of Patent: July 26, 1977
    Assignee: Wheelabrator-Frye, Inc.
    Inventors: Ardee H. Freeman, Harold F. Schulte, Hubert Davidson
  • Pneumatic bypass system for air wash separators
    Patent number: 4017384
    Abstract: A pneumatic bypass system for air wash separators is disclosed. The system detects a surge or overflow of sand passing into an air wash separator by means of a pressure probe located in the vicinity of the separator's swinging baffle. When a sand surge is detected, a pressure drop is produced in the probe tube operating a pressure switch and solenoid valve for actuating a pneumatic cylinder and piston assembly for opening the swinging baffle to permit the sand surge to pass the separator lip.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: April 12, 1977
    Assignee: Wheelabrator-Frye, Inc.
    Inventors: Ardee H. Freeman, Bruce H. Berger, Jr.