Patents by Inventor John N. Walsh

John N. Walsh 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).

  • Automated rigid-disk finishing system providing in-line process control
    Patent number: 5099615
    Abstract: The present invention provides an automated rigid-disk finishing system with "fly-by-wire" control of each of the relevant parameters involved in the texturing process. The system includes an abrasive tape, a means for forcibly pressing the tape against the substrate to cut microscopic grooves into the substrate's surface, and a control means for simultaneously controlling the speed and tension of the tape and for sensing the tension developed in the tape on both sides of the tape/substrate interface. The described system is thus capable of establishing tape speed and tape tension simultaneously, while providing a measure of the actual work being accomplished on the rigid disk surface.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: March 31, 1992
    Assignee: Exclusive Design Company, Inc.
    Inventors: Frank D. Ruble, John N. Walsh, Robert A. Smith
  • Automated rigid-disk finishing system providing in-line process control
    Patent number: 5088240
    Abstract: The present invention provides an automated rigid-disk finishing system with "fly-by-wire" control of each of the relevant parameters involved in the texturing process. The system includes an abrasive tape, a means for forcibly pressing the tape against the substrate to cut microscopic grooves into the substrate's surface, and a control means for simultaneously controlling the speed and tension of the tape and for sensing the tension developed in the tape on both sides of the tape/substrate interface. The described system is thus capable of establishing tape speed and tape tension simultaneously, while providing a measure of the actual work being accomplished on the rigid disk surface.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: February 18, 1992
    Assignee: Exclusive Design Company, Inc.
    Inventors: Frank D. Ruble, John N. Walsh, Robert A. Smith