Patents by Inventor John P. Doyle

John P. Doyle 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).

  • Publication number: 20030188861
    Abstract: A tool is provided for preventing the rotation of a downhole tool or rotary pump stator, the tool comprising a tubular housing and a jaw which is biased radially outwardly from the tool to engage the casing wall for arresting tool rotation and providing significant stabilization of a rotary pump. In doing so, the tool housing moves oppositely to rest against the casing opposite the jaw. The tool housing and the downhole tool are thereby restrained and stabilized by the casing wall. The tool's jaw is released by opposite tool rotation. Preferably, the jaw is biased outwardly from the tool housing to a casing-engaging position by a torsional member, housed along the axis of the hinge of the jaw. The tool is released from the casing by opposite tool rotation which increasingly compresses the jaw toward the housing, twisting the torsional member into torsion, which then acts to urge the jaw outwardly again. Overextension of the jaw during assembly is prevented using cooperating stops in the jaw and the housing.
    Type: Application
    Filed: May 9, 2003
    Publication date: October 9, 2003
    Inventors: John P. Doyle, Lynn P. Tessier, James L. Weber
  • Publication number: 20020014335
    Abstract: A tool is provided for preventing the rotation of a downhole tool or rotary pump stator, the tool comprising a tubular housing and a jaw which is biased radially outwardly from the tool to engage the casing wall for arresting tool rotation and providing significant stabilization of a rotary pump. In doing so, the tool housing moves oppositely to rest against the casing opposite the jaw. The tool housing and the downhole tool are thereby restrained and stabilized by the casing wall. The tool's jaw is released by opposite tool rotation. Preferably, the jaw is biased outwardly from the tool housing to a casing-engaging position by a torsional member, housed along the axis of the hinge of the jaw. The tool is released from the casing by opposite tool rotation which increasingly compresses the jaw toward the housing, twisting the torsional member into torsion, which then acts to urge the jaw outwardly again.
    Type: Application
    Filed: September 26, 2001
    Publication date: February 7, 2002
    Inventors: John P. Doyle, Lynn P. Tessier, James L. Weber
  • Patent number: 4171043
    Abstract: A pusher bar transfer mechanism supporting the pusher bar on a suspension capable of oscillation in mutually perpendicular planes and guided to move the pusher bar in a transfer of a row of articles with a component of motion parallel to the row and a component transverse thereto in the transfer direction.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: October 16, 1979
    Assignee: Sheppee Engineering Limited
    Inventor: John P. Doyle