Patents by Inventor Randall Weaver

Randall Weaver 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: 8337180
    Abstract: A fluid section for a reciprocating pump comprises a cylinder assembly including a housing having a central axis, a first end, a second end opposite the first end, and a throughbore extending axially between the first end and the second end. In addition, the cylinder assembly includes a liner disposed within the throughbore of the housing. Further, the cylinder assembly includes an end cap coupled to the second end of the housing. Still further, the cylinder assembly includes an annulus radially positioned between the liner and the housing, the annulus being in fluid communication with the throughbore of the liner. Moreover, the fluid section includes a piston slidingly disposed in the throughbore of the liner. The piston is adapted to compress a fluid disposed in a pumping chamber within the liner extending axially through the throughbore of the liner between the piston and the first end of the housing.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: December 25, 2012
    Assignee: National Oilwell Varco, L.P.
    Inventors: Jason Neal Whaley, Randall Weaver
  • Publication number: 20110058959
    Abstract: A fluid section for a reciprocating pump comprises a cylinder assembly including a housing having a central axis, a first end, a second end opposite the first end, and a throughbore extending axially between the first end and the second end. In addition, the cylinder assembly includes a liner disposed within the throughbore of the housing. Further, the cylinder assembly includes an end cap coupled to the second end of the housing. Still further, the cylinder assembly includes an annulus radially positioned between the liner and the housing, the annulus being in fluid communication with the throughbore of the liner. Moreover, the fluid section includes a piston slidingly disposed in the throughbore of the liner. The piston is adapted to compress a fluid disposed in a pumping chamber within the liner extending axially through the throughbore of the liner between the piston and the first end of the housing.
    Type: Application
    Filed: September 8, 2010
    Publication date: March 10, 2011
    Applicant: NATIONAL OILWELL VARCO, L. P.
    Inventors: Jason Neal Whaley, Randall Weaver
  • Publication number: 20060180020
    Abstract: A connector assembly comprising a housing and a tensile member disposed within the housing. The tensile member comprises first and second end portions. Each end portion sealingly engages the housing to form a hydraulic chamber therebetween. A first connector pivotally coupled to the first end portion. The axial position of the first connector relative to the housing is controlled by pressure within the hydraulic chamber.
    Type: Application
    Filed: February 13, 2006
    Publication date: August 17, 2006
    Applicant: National-Oilwell, L.P.
    Inventors: Andrew Riley, Randall Weaver
  • Publication number: 20050089427
    Abstract: Methods and apparatus for securing a cylinder liner to a pump module. A tension body is disposed about the cylinder liner and attached to the pump module. A locking body engages the cylinder liner and is threaded to the tension body. A hydraulic load cell is removably attached to the tension body and includes a hydraulic ram arranged to impart a compressive load to the cylinder liner and a tension load in the tension body. The locking body can be adjusted axially to contact the cylinder liner and maintain the applied loads, which act as a pre-load to keep the cylinder liner in contact with the pump module.
    Type: Application
    Filed: October 23, 2003
    Publication date: April 28, 2005
    Applicant: National-Oilwell, L.P.
    Inventors: Andrew Riley, Randall Weaver