Patents by Inventor Thomas J. Griffiths

Thomas J. Griffiths 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: 5909890
    Abstract: In a bicycle having a main frame, a wheel support frame pivotally attached to the main frame by a swing arm, and a suspension system coupled to the swing arm and the wheel support frame, a device for inhibiting the operation of the suspension system consisting of a body having a first end and a second end, the first end being pivotally attached to the swing arm and the second end being configured to detachably engage the main frame, such that when the second end of the body is engaged with the main frame, movement of the swing arm is substantially restricted.In the bicycle, a method of inhibiting the operation of the suspension system consisting the steps of providing the body having the first end and the second end; mounting the first end such that the first end is pivotally attached to the swing arm; and, pivoting the body from a disengaged position to an engaged position such that when the second end of the body is engaged with the main frame, movement of the swing arm is substantially restricted.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: June 8, 1999
    Inventors: Gregory D. Sachs, Richard K. Freshman, Thomas J. Griffith
  • Patent number: 4938823
    Abstract: A method for the manufacture of fiber reinforced plastic articles includes the steps of pultruding a first profile through a die and applying a thermoplastic resin to the first profile to form a second profile bonded integrally to the first profile. A fiber reinforced plastic article (10) prepared according to the method of the present invention comprises a first profile (11) comprising a plurality of continuous fiber reinforcing materials (13) and a thermosetting resin (14) impregnating the reinforcing material and, a second profile (12) integrally bonded to the first profile and comprising a thermoplastic resin (65).
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: July 3, 1990
    Assignee: The Pultrusions Corporation
    Inventors: David T. Balazek, Thomas J. Griffiths, David E. Pearson