Patents by Inventor C. Arthur Davis

C. Arthur Davis 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).

  • Variable leverage oil field pump jack
    Patent number: 4492126
    Abstract: In a heavy-duty pump jack as used in oil well pumping, a leverage beam is oscillated by a motor-driven crank and the leverage beam acts upon the walking beam through an adjustable stroke controller.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: January 8, 1985
    Inventor: C. Arthur Davis
  • Cable banding lock ring
    Patent number: 4361937
    Abstract: When a submerged pump is supported on its discharge pipe in a deep well, such as an oil well, the electric power supply cable to the pump is strapped to the side of the discharge pipe. The cable banding lock ring engages around the strap between the cable and discharge pipe to increase the wrap of the strap around both the power supply cable and the discharge pipe.
    Type: Grant
    Filed: November 28, 1980
    Date of Patent: December 7, 1982
    Inventor: C. Arthur Davis
  • Strap cutter and method
    Patent number: 4314400
    Abstract: A strap cutter is secured to the top structure on an oil well casing and as the discharge pipe supporting a submersible pump is withdrawn, the cutting head of the strap cutter engages with and cuts the straps which secure the pump power cable to the discharge pipe. The strap cutter is manually guided into place but employs the upward motion of the discharge pipe string to supply the cutting force. The method comprises the use of the upward motion to accomplish the cutting step.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: February 9, 1982
    Inventor: C. Arthur Davis