Patents by Inventor John Schraub

John Schraub 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: 6845817
    Abstract: An apparatus for use in manipulating an eccentrically located well bore device. One embodiment of the apparatus comprises: a main body attachable to a conveyance member; an arm hinged to the main body; a lock assembly for selectively retaining the arm in a locked position and releasing the arm from the locked position; a kick over assembly for moving the arm to kicked over position; and an adapter connected to the lift arm, the adapter connectable with a tool for latching onto the device. The kick over assembly comprises a kick member operatively connected to the arm and a biasing member having a first end connected to the arm and a second end connected to the kick member.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: January 25, 2005
    Assignee: Weatherford/Lamb, Inc.
    Inventor: John Schraub
  • Publication number: 20040060694
    Abstract: An apparatus for manipulating an eccentrically located well bore device is disclosed. One embodiment of the apparatus comprises: a main body attachable to a conveyance member; an arm hinged to the main body; a lock assembly for selectively retaining the arm in a locked position and releasing the arm from the locked position; a kick over assembly for moving the arm to a kicked over position; and an adapter connected to the lift arm, the adapter connectable with a tool for latching onto the device. The kick over assembly comprises a kick member operatively connected to the arm and a biasing member having a first end connected to the arm and a second end connected to the kick member.
    Type: Application
    Filed: September 27, 2002
    Publication date: April 1, 2004
    Inventor: John Schraub
  • Patent number: 5070902
    Abstract: A water injection valve for use in a well bore having a cylindrical valve body with an axial water passage, a cylinder slidably mounted therein with an upstream control shoulder, lateral fluid ports in the cylinder upstream of the seal between the cylinder and the valve body and an open downstream end which restricts fluid flow when the cylinder impinges upon a conical valve seat. The cylinder is adjustably biased away from the valve seat by a spring and permits fluid flow no greater than a predetermined maximum rate despite increases in pressure differential across the valve.
    Type: Grant
    Filed: December 5, 1990
    Date of Patent: December 10, 1991
    Assignee: McMurry Oil Tools, Inc.
    Inventor: John Schraub