Patents by Inventor Grant Pruitt

Grant Pruitt 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: 8973652
    Abstract: The pipe wiper assembly of the present invention assists with wiping the pipe as the pipe is removed from the hole (“tripped out”). The pipe passes through the two pipe apertures of the pipe wiper assembly during the removal. Two upper containment arms adjust between an open position and a closed position within the housing to form the upper pipe aperture. The lower containment lip forms the lower piper aperture. The upper containment arms and lower containment lip partially enclose the housing to prevent the wiper from exiting the wiper storage. The containment arms slideably adjust to eliminate the need for hinges. The removal of the hinges provides for easier storage and transportation of the pipe wiper assembly. The removal of hinges also reduces manufacturing costs of the pipe wiper assembly.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: March 10, 2015
    Assignee: Pruitt Tool & Supply Co.
    Inventors: Grant Pruitt, Cris Braun
  • Patent number: 8905150
    Abstract: The casing stripper attachment secures the casing stripper within a housing, such as the bowl. The casing stripper rubber attaches to an attachment body for installation within the housing. The attachment body includes a base and an attachment lip. The base provides an outer surface for securing the attachment body and stripper rubber to the housing. The clamp secures the outer surface of the base with the housing. The stripper rubber fastens to the attachment lip of the attachment body to be secured within the bowl. The base of the present invention could attach to a drilling nipple that assists with inserting the casing into the well, a process known as running casing.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: December 9, 2014
    Assignee: Pruitt Tool & Supply Co.
    Inventors: Grant Pruitt, Cris Braun
  • Patent number: 8573293
    Abstract: A housing of a dual rubber cartridge attaches at least one rubber to an inner barrel for rotation with the inner barrel. A first rubber and a second rubber may attach to the housing for quick installation of the rubbers. The user removes the housing to remove and replace the two rubbers.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: November 5, 2013
    Assignee: Pruitt Tool & Supply Co.
    Inventors: Grant Pruitt, Cris Braun
  • Patent number: 8245772
    Abstract: An improved rotating head that utilizes a box assembly that stores at least one locking element that allows for movement of the locking balls within the box assembly such that a liner inserted into the box assembly biases the locking elements to a locked position to couple the box assembly and the outer barrel. An integrated wear surface of the present invention seals the bearing elements to extend the life of the rotating head and reduce downtime caused by necessary maintenance of the rotating head.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: August 21, 2012
    Assignee: Pruitt Tool & Supply Co.
    Inventors: Grant Pruitt, Cris Braun
  • Patent number: 7870896
    Abstract: An improved rotating head that utilizes a box assembly that stores at least one locking element that that allows for movement of the locking balls within the box assembly such that a liner inserted into the box assembly biases the locking elements to a locked position to couple the box assembly and the outer barrel. An integrated wear surface of the present invention seals the bearing elements to extend the life of the rotating head and reduce downtime caused by necessary maintenance of the rotating head.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: January 18, 2011
    Assignee: Pruitt Group, Inc.
    Inventors: Grant Pruitt, Cris Braun
  • Patent number: 7798210
    Abstract: The present invention relates to rotating heads for oil and gas wells and more particularly, to an improved rotating head that utilizes a dual rubber cartridge that fixedly attaches at least one rubber to an inner barrel for rotation with the inner barrel. The present invention further utilizes components to at least partially enclose fasteners to prevent removal of the fasteners during normal operation. By enclosing the fasteners, the present invention extends the life of the rotating head and reduces downtime caused by necessary maintenance of the rotating head.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: September 21, 2010
    Assignee: Pruitt Group, Inc.
    Inventors: Grant Pruitt, Cris Braun
  • Patent number: D647539
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: October 25, 2011
    Assignee: Pruitt Tool & Supply Co.
    Inventors: Grant Pruitt, Cris Braun