Patents by Inventor Jeffrey P. Roark

Jeffrey P. Roark 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).

  • Cam track with adjustable pre-release
    Patent number: 6461141
    Abstract: An adjustable cam track for a mold assembly including a first mold portion, a second mold portion movable with respect to the first mold portion, a third mold portion movably interposed between the first and second portions and having at least one pair of space defining surfaces which together with the first and second mold portions defines in a closed position space for receiving plastic material to form at least one molded article. The adjustable cam track includes a guide coupled to the second mold portion, the guide defining a first portion of the adjustable cam track and a cam insert including a second portion of the adjustable cam track defining a point of release of the molded article from the space defining surfaces, the cam insert being adjustably positionable with respect to the guide to adjust the point of release.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: October 8, 2002
    Assignee: Wentworth Mold, Inc., Electra Form Industries Division
    Inventors: Kevin R. Harrison, Jeffrey P. Roark
  • Cam track with adjustable pre-release
    Publication number: 20020127298
    Abstract: An adjustable cam track for a mold assembly including a first mold portion, a second mold portion movable with respect to the first mold portion, a third mold portion movably interposed between the first and second portions and having at least one pair of space defining surfaces which together with the first and second mold portions defines in a closed position space for receiving plastic material to form at least one molded article. The adjustable cam track includes a guide coupled to the second mold portion, the guide defining a first portion of the adjustable cam track and a cam insert including a second portion of the adjustable cam track defining a point of release of the molded article from the space defining surfaces, the cam insert being adjustably positionable with respect to the guide to adjust the point of release.
    Type: Application
    Filed: November 30, 2000
    Publication date: September 12, 2002
    Inventors: Kevin R. Harrison, Jeffrey P. Roark