Patents by Inventor Richard E. Cash

Richard E. Cash 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).

  • Low friction and high wear resistant sucker rod string
    Patent number: 11352838
    Abstract: A sucker rod string is formed from sucker rods and sucker rod couplings. The sucker rod couplings are formed from a spinodally-hardened copper alloy comprising from about 8 to about 20 wt % nickel, and from about 5 to about 11 wt % tin, the remaining balance being copper, and having a sliding coefficient of friction of 0.4 or less when measured against carbon steel. The sucker rod string has low friction and improved pumping stroke, enhanced pumping capacity, and less load in the overall system.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: June 7, 2022
    Assignee: Materion Corporation
    Inventors: Fritz C. Grensing, Diane M. Nielsen, William D. Nielsen, Richard E. Cash, Christopher W. Damschroder
  • LOW FRICTION AND HIGH WEAR RESISTANT SUCKER ROD STRING
    Publication number: 20210017817
    Abstract: A sucker rod string is formed from sucker rods and sucker rod couplings. The sucker rod couplings are formed from a spinodally-hardened copper alloy comprising from about 8 to about 20 wt % nickel, and from about 5 to about 11 wt % tin, the remaining balance being copper, and having a sliding coefficient of friction of 0.4 or less when measured against carbon steel. The sucker rod string has low friction and improved pumping stroke, enhanced pumping capacity, and less load in the overall system.
    Type: Application
    Filed: October 7, 2020
    Publication date: January 21, 2021
    Applicant: MATERION CORPORATION
    Inventors: Fritz C. Grensing, Diane M. Nielsen, William D. Nielsen, Richard E. Cash, Christopher W. Damschroder
  • Low friction and high wear resistant sucker rod string
    Patent number: 10844671
    Abstract: A sucker rod string is formed from sucker rods and sucker rod couplings. The sucker rod couplings are formed from a spinodally-hardened copper alloy comprising from about 8 to about 20 wt % nickel, and from about 5 to about 11 wt % tin, the remaining balance being copper, and having a sliding coefficient of friction of 0.4 or less when measured against carbon steel. The sucker rod string has low friction and improved pumping stroke, enhanced pumping capacity, and less load in the overall system.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: November 24, 2020
    Assignee: Materion Corporation
    Inventors: Fritz C. Grensing, Diane M. Nielsen, William D. Nielsen, Richard E. Cash, Christopher W. Damschroder
  • LOW FRICTION AND HIGH WEAR RESISTANT SUCKER ROD STRING
    Publication number: 20190242197
    Abstract: A sucker rod string is formed from sucker rods and sucker rod couplings. The sucker rod couplings are formed from a spinodally-hardened copper alloy comprising from about 8 to about 20 wt % nickel, and from about 5 to about 11 wt % tin, the remaining balance being copper, and having a sliding coefficient of friction of 0.4 or less when measured against carbon steel. The sucker rod string has low friction and improved pumping stroke, enhanced pumping capacity, and less load in the overall system.
    Type: Application
    Filed: January 24, 2019
    Publication date: August 8, 2019
    Inventors: Fritz C. Grensing, Diane M. Nielsen, William D. Nielsen, Richard E. Cash, Christopher W. Damschroder