Patents by Inventor Roland Cawthorne

Roland Cawthorne 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: 4564410
    Abstract: An adhesive application apparatus for automatically applying a strip of adhesive material of predefined shape accurately to the periphery of either the window opening in a motor vehicle or a pane of glass sized to cover that window opening, the apparatus comprising a pressurized supply means feeding adhesive material under pressure to a nozzle 16 of a dispensing means 14, said nozzle being carried upon a rigid framework 52 in such a fashion that the nozzle can be moved in any direction relative to the surface on which the strip of adhesive material is to be placed by means of DC servo drive motors 44, 74 and 84, and the tip of the nozzle can be accurately guided around said periphery by a nozzle angle adjustment means operated by a DC servo drive motor 92, the rate at which the adhesive material is supplied to the nozzle 16 and the rates of operation of all four of the DC servo motors 44, 74, 84 and 92 all being under the full control of a computer numerical control system.
    Type: Grant
    Filed: June 28, 1984
    Date of Patent: January 14, 1986
    Assignee: General Motors Corporation
    Inventors: Derek P. Clitheros, David A. Livingstone, David B. Roberts, Roland Cawthorne