Patents by Inventor Randall F. Weaver

Randall F. 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).

  • Hydraulic rod connector system
    Patent number: 6554523
    Abstract: A hydraulic connector assembly is provided to couple an extension rod to a piston rod in a reciprocating pump. The connector assembly utilizes a single hydraulic ram to provide the compressive connecting force between the two rods. The connector assembly includes a mechanism for mechanically locking the hydraulic ram in place so that loss of hydraulic power does not uncouple the assembly. The piston rod and the connector rod can be coupled and uncoupled without the use of heavy wrenches, hammers, or impact tools.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: April 29, 2003
    Assignee: National-Oilwell L.P.
    Inventors: James C. Aday, Randall F. Weaver
  • Hydraulic rod connector system
    Publication number: 20020159823
    Abstract: A hydraulic connector assembly is provided to couple an extension rod to a piston rod in a reciprocating pump. The connector assembly utilizes a single hydraulic ram to provide the compressive connecting force between the two rods. The connector assembly includes a mechanism for mechanically locking the hydraulic ram in place so that loss of hydraulic power does not uncouple the assembly. The piston rod and the connector rod can be coupled and uncoupled without the use of heavy wrenches, hammers, or impact tools.
    Type: Application
    Filed: April 27, 2001
    Publication date: October 31, 2002
    Inventors: James C. Aday, Randall F. Weaver