Patents by Inventor David S. Ferris

David S. Ferris 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).

  • Patent number: 11951505
    Abstract: According to some embodiments, a system and method for dispensing a floor coating in a specified ratio of multiple components is disclosed. The system and method may set and maintain a desired ratio of the multiple components by controlling, with a controller, a drive rate of respective pumps configured for propelling the components from a reservoir to a mixer or a dispenser. The controller may be responsive to at least one of a measured actual drive rate, an environmental condition, an actual usage of each component, and an operational parameter of the system, for adjusting a drive rate of the respective pumps to compensate for discrepancies that may affect the ratio of the multiple components.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: April 9, 2024
    Assignee: SWIMC LLC
    Inventors: Kyle Sanford Smith, Murty Venkata Bhamidipati, David Royston Hughes, Robert S. Smith, Peter V. Ferris, Daniel R. Allen, Charles R. Sperry, David M. Kroll
  • Patent number: 5071485
    Abstract: A method and apparatus for stripping a photoresist layer from a semiconductor wafer, wherein oxidizing gas is fed from the edge of the wafer to the center. The oxidizing gas may be directed so that it is incident on the heated wafer support platform before it is incident on the wafer.
    Type: Grant
    Filed: September 11, 1990
    Date of Patent: December 10, 1991
    Assignee: Fusion Systems Corporation
    Inventors: John C. Matthews, Robert D. Wooten, David S. Ferris, Stuart N. Rounds
  • Patent number: 4683636
    Abstract: A system for accepting conventional wire in bulk form, cutting the wire into predetermined lengths and preparing the ends of the wire for use in conventional wire harnesses is disclosed. More specifically, the system accepts as input data, in digital form, which fully describes each wire to be formed. Individual wires having the required length are cut from wire provided in bulk form. As each section of wire is measured and cut, it is stored in individual containers and the ends of each section is secured by a clamp. A transport system sequentially transports the stored wires to workstations where conventional wire preparation tasks such as stripping, marking and attachment of terminals are performed. After all wire preparation functions have been performed, the individual wires are removed from their containers and utilized in forming wire harnesses.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: August 4, 1987
    Assignee: Westinghouse Electric Corp.
    Inventors: James A. Henderson, Constantine M. Travlos, David S. Ferris, Gerald J. Duddy, Roland F. Mercier
  • Patent number: 4569300
    Abstract: A torpedo having a nose section wherein the entire nose section is of a porous material. The volume behind the nose is divided into a plurality of annular chambers and a fluid delivery system provides filtered sea water to the chambers for expulsion through the porous nose. The filtered water passing over the nose and torpedo body is at a rate to alter the trajectory of any particulate matter that would tend to destabilize laminar boundary layer operation.
    Type: Grant
    Filed: May 4, 1984
    Date of Patent: February 11, 1986
    Assignee: Westinghouse Electric Corp.
    Inventors: David S. Ferris, Rosario Gulino, Robert F. Mons