Patents by Inventor Guilherme Eppinghaus

Guilherme Eppinghaus 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).

  • Running tool
    Patent number: 8408309
    Abstract: An embodiment of a running tool for setting and testing a packoff seal of a well pipe hanger has an elongated stem having an axial passage, a body, a cam, a cam tail, a stem engagement element, and a piston. A method of setting and testing a packoff seal comprises rotating the stem relative to the body to a delivery position, thereby disengaging the engaging element from the stem. The stem moves axially downward relative to the body to land the packoff. The engagement element reengages the stem in a landing position. Fluid pressure is applied to the axial passage to set and seal the packoff, thereby moving the running tool to a set position.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: April 2, 2013
    Assignee: Vetco Gray Inc.
    Inventors: Guilherme Eppinghaus, Nicholas P. Gette
  • Running Tool
    Publication number: 20120037382
    Abstract: An embodiment of a running tool for setting and testing a packoff seal of a well pipe hanger has an elongated stem having an axial passage, a body, a cam, a cam tail, a stem engagement element, and a piston. A method of setting and testing a packoff seal comprises rotating the stem relative to the body to a delivery position, thereby disengaging the engaging element from the stem. The stem moves axially downward relative to the body to land the packoff. The engagement element reengages the stem in a landing position. Fluid pressure is applied to the axial passage to set and seal the packoff, thereby moving the running tool to a set position.
    Type: Application
    Filed: August 13, 2010
    Publication date: February 16, 2012
    Applicant: Vetco Gray Inc.
    Inventors: Guilherme Eppinghaus, Nicholas P. Gette
  • Bit-run nominal seat protector and method of operating same
    Patent number: 8074724
    Abstract: A drilling system employs a set of bushings that protect seats used for casing hangers. The system includes one or more seat protectors that attach to a running tool. The running tool is lowered down the wellbore with the seat protectors attached and deposits a bushing at each surface to be protected. The running tool may retrieve the bushings as the running tool is withdrawn from the wellbore.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: December 13, 2011
    Assignee: Vetco Gray Inc.
    Inventors: Marc Minassian, Guilherme Eppinghaus, David L. Ford
  • BIT-RUN NOMINAL SEAT PROTECTOR AND METHOD OF OPERATING SAME
    Publication number: 20100243271
    Abstract: A drilling system employs a set of bushings that protect seats used for casing hangers. The system includes one or more seat protectors that attach to a running tool. The running tool is lowered down the wellbore with the seat protectors attached and deposits a bushing at each surface to be protected. The running tool may retrieve the bushings as the running tool is withdrawn from the wellbore.
    Type: Application
    Filed: March 27, 2009
    Publication date: September 30, 2010
    Applicant: Vetco Gray Inc.
    Inventors: Marc Minassian, Guilherme Eppinghaus, David L. Ford