Patents by Inventor Charles I. Woods

Charles I. Woods 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).

  • Composite sucker rod with support sleeve
    Patent number: 10378209
    Abstract: A composite sucker rod (12) has a tension rod (16) formed of a carbon fiber reinforced phenolic material and a support sleeve (18) formed of aluminum. The support sleeve (18) extends around the tension rod (16). A compressive preload is applied to the support sleeve (18) and a corresponding tensile preload is applied to the tension rod (16). The tensile preload reduces compressive loads applied to the tension rod (16). The compressive preload and the tensile preload are applied by differences in coefficients of thermal expansion of the materials from which the support sleeve (18) and the tension rod (16) are formed, and exposure to well temperatures.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: August 13, 2019
    Assignee: 136 Holdings, LLC
    Inventors: Jonathan R. Martin, Charles I. Woods
  • COMPOSITE SUCKER ROD WITH SUPPORT SLEEVE
    Publication number: 20180305930
    Abstract: A composite sucker rod (12) has a tension rod (16) formed of a carbon fiber reinforced phenolic material and a support sleeve (18) formed of aluminum. The support sleeve (18) extends around the tension rod (16). A compressive preload is applied to the support sleeve (18) and a corresponding tensile preload is applied to the tension rod (16). The tensile preload reduces compressive loads applied to the tension rod (16). The compressive preload and the tensile preload are applied by differences in coefficients of thermal expansion of the materials from which the support sleeve (18) and the tension rod (16) are formed, and exposure to well temperatures.
    Type: Application
    Filed: April 20, 2018
    Publication date: October 25, 2018
    Applicant: 136 Holdings, LLC
    Inventors: Jonathan R. Martin, Charles I. Woods