Patents by Inventor Randolph Lewis Stuart

Randolph Lewis Stuart 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).

  • Power tong with vertically pivoting door
    Patent number: 11255141
    Abstract: A power tong having a door that pivots in a vertical plane that is parallel to a plane that includes the axis of the tubular being made up or broken down by the power tong. The door is pivotally coupled to a power tong body for movement between an open position, that allows a tubular joint to be introduced through a throat and into a bay of the power tong, and a closed position that closes the bay of the power tong to enable the gripping and rotating components of the power tong to be engaged to grip and rotate the tubular joint introduced into the power tong. The power tong door includes structures that are engaged upon pivotal closure of the door with corresponding structures on the power tong body.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: February 22, 2022
    Assignee: Eckel Manufacturing Company, Inc.
    Inventors: Randolph Lewis Stuart, Dwayne Austin Weddle
  • POWER TONG WITH VERTICALLY PIVOTING DOOR
    Publication number: 20180252058
    Abstract: A power tong having a door that pivots in a vertical plane that is parallel to a plane that includes the axis of the tubular being made up or broken down by the power tong. The door is pivotally coupled to a power tong body for movement between an open position, that allows a tubular joint to be introduced through a throat and into a bay of the power tong, and a closed position that closes the bay of the power tong to enable the gripping and rotating components of the power tong to be engaged to grip and rotate the tubular joint introduced into the power tong. The power tong door includes structures that are engaged upon pivotal closure of the door with corresponding structures on the power tong body.
    Type: Application
    Filed: September 2, 2016
    Publication date: September 6, 2018
    Inventors: Randolph Lewis Stuart, Dwayne Austin Weddle