Patents by Inventor David G. Dearing

David G. Dearing 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: 7950469
    Abstract: A well tool is adapted to couple to at least one of a wireline service tool and a tubing string and has an adapter component engaging portion adapted to couple to an adapter component. At least a first and a second interchangeable adapter components are operable to couple to the adapter component engaging portion. The first adapter component is adapted to perform a first function and the second adapter component is adapted to perform a second function.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: May 31, 2011
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ronald W. McGregor, David G. Dearing
  • Publication number: 20100170680
    Abstract: A well tool is adapted to couple to at least one of a wireline service tool and a tubing string and has an adapter component engaging portion adapted to couple to an adapter component. At least a first and a second interchangeable adapter components are operable to couple to the adapter component engaging portion. The first adapter component is adapted to perform a first function and the second adapter component is adapted to perform a second function.
    Type: Application
    Filed: March 16, 2010
    Publication date: July 8, 2010
    Inventors: Ronald W. McGregor, David G. Dearing
  • Patent number: 7694745
    Abstract: A well tool is adapted to couple to at least one of a wireline service tool and a tubing string and has an adapter component engaging portion adapted to couple to an adapter component. At least a first and a second interchangeable adapter components are operable to couple to the adapter component engaging portion. The first adapter component is adapted to perform a first function and the second adapter component is adapted to perform a second function.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: April 13, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ronald W. McGregor, David G. Dearing
  • Patent number: 6691788
    Abstract: A retrievable packer (50) for establishing a sealing and gripping engagement between a tubing string and a well casing (34) disposed in a wellbore is disclosed. The retrievable packer (50) comprises a collet member (64) that is slidably disposed about a packer mandrel (52). The collet member (64) has a first operating position wherein the collet member (64) applies an axial force on a support ring (76) to positively position the support ring (76) at least partially between a first slip wedge (90) and the packer mandrel (52) to set a seal assembly (96, 98, 100). In addition, the collet member (64) has a second operating position wherein the collet member (64) applies an axial force on a slip assembly (80) to set the slip assembly (80).
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: February 17, 2004
    Assignee: Halliburton Energy Services, Inc.
    Inventor: David G. Dearing
  • Publication number: 20040016550
    Abstract: A retrievable packer (50) for establishing a sealing and gripping engagement between a tubing string and a well casing (34) disposed in a wellbore is disclosed. The retrievable packer (50) comprises a collet member (64) that is slidably disposed about a packer mandrel (52). The collet member (64) has a first operating position wherein the collet member (64) applies an axial force on a support ring (76) to positively position the support ring (76) at least partially between a first slip wedge (90) and the packer mandrel (52) to set a seal assembly (96, 98, 100). In addition, the collet member (64) has a second operating position wherein the collet member (64) applies an axial force on a slip assembly (80) to set the slip assembly (80).
    Type: Application
    Filed: July 25, 2002
    Publication date: January 29, 2004
    Inventor: David G. Dearing
  • Patent number: 4838348
    Abstract: A well packer brake mechanism includes opposed rings releasably holding brake members in an inward brake released position. The rings are movable away from one another for allowing outward movement of the brake members to their operating position under influence of biasing springs.
    Type: Grant
    Filed: January 28, 1988
    Date of Patent: June 13, 1989
    Assignee: Dresser Industries, Inc.
    Inventor: David G. Dearing
  • Patent number: 4583590
    Abstract: The slip releasing apparatus described herein includes a unitary slip member having wall engaging teeth located in diagonally opposite upper and lower ends and carries a pair of releasing pins mounted therein that project inwardly therefrom. The pins are disposed in recesses or holes formed in a slip carrier member that extends through the slip member. The recesses are configured in the carrier member so that an upward pull on the carrier member moves a release surface onto the carrier member into engagement with the pins in the slip member to cause pivotal or rotational movement of the slip member about a fulcrum formed by the engagement between the teeth on the lower end of this slip member and the pipe in which the slip member is run.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: April 22, 1986
    Assignee: Dresser Industries, Inc.
    Inventors: Donald R. Greenlee, David G. Dearing, Andrew J. Tucker