Patents by Inventor Jonathan D. Philby

Jonathan D. Philby 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).

  • Processing of metal articles
    Patent number: 5064990
    Abstract: A method is described for the separation of metal articles from surplus metal by the use of a laser. The articles may be cast or wrought. Several examples are given of gas turbine engine components being separated from a gating system by the use of a YAG laser. Benefits include lack of heat generation and, therefore, little or no distortion in the article.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: November 12, 1991
    Assignee: AE Turbine Components Limited
    Inventors: Michael Tinsley, Antony Johns, Jonathan D. Philby
  • Pistons for internal combustion engines
    Patent number: 4677900
    Abstract: A piston carries on its skirt surface a number of separate strips of a plastics material, such as a polyetheretherketone alloy, so that the strips are hydrodynamically lubricated and transmit lateral thrust from the piston to an associated cylinder or liner. The strips are just proud of the skirt surface and may be contained in recesses formed in the skirt surface.
    Type: Grant
    Filed: July 26, 1985
    Date of Patent: July 7, 1987
    Assignee: AE PLC
    Inventor: Jonathan D. Philby
  • Piston rings and their manufacture
    Patent number: 4655983
    Abstract: A piston ring is formed by annular upper and lower parts which contact one another at respective surfaces normal to the axis of the piston ring. The parts can be injection moulded from thermoplastics materials with the parts themselves having no re-entrant portions, so allowing quick and easy manufacture, but with the parts together defining re-entrant portions such as a spring-receiving recess at the inward side of the ring or a pair of spaced oil control rails at the outward side of the ring.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: April 7, 1987
    Assignee: AE PLC
    Inventor: Jonathan D. Philby