Patents by Inventor John Antony Smith

John Antony Smith 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).

  • Extractor for bushing and its associated method of use
    Patent number: 6745447
    Abstract: To extract a bushing from a housing, a number of cylindrical engaging elements are inserted in the bore of the bushing. The elements are clipped together by clips and have a lip which bears on the bushing end surface. An extractor head pushes on the elements to force the bushing from the housing.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: June 8, 2004
    Inventor: John Antony Smith
  • Extractor
    Publication number: 20020144390
    Abstract: To extract a bushing from a housing, a number of cylindrical engaging elements are inserted in the bore of the bushing. The elements are clipped together by clips and have a lip which bears on the bushing end surface. An extractor head pushes on the elements to force the bushing from the housing.
    Type: Application
    Filed: October 24, 2001
    Publication date: October 10, 2002
    Inventor: John Antony Smith
  • Spring tester
    Patent number: 5832774
    Abstract: A spring tester has a hydraulic ram which urges a bearer plate towards a load cell to achieve a predetermined fixed spacing D between them. A replaceable spacer allows adjustment of the distance D to a distance d. A spring to be tested is compressed to the length d and the load indicated by the load cell. Under test, the spring is laid in a cylindrical channel in a carriage to simulate the operation of the spring in an aircraft braking system.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: November 10, 1998
    Inventor: John Antony Smith