Patents by Inventor Thomas J. Langston

Thomas J. Langston 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).

  • Patent number: 12115406
    Abstract: Training equipment includes a hollow shaft having a sidewall defining an internal cavity and at least one polymer material filling at least a portion of the internal cavity. The polymer material may fill the entire internal cavity of the hollow shaft. The polymer material may be a visco-elastic polymer material or polyurethane. A spacer or a filler may fill at least a portion of the internal cavity. A method of making weighted training equipment with a hollow shaft having a sidewall defining an internal cavity may include injecting a curable composition into at least a portion of the internal cavity. The method may further include curing the curable composition into a polymer material.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: October 15, 2024
    Assignee: CAXY Sports, LLC
    Inventor: Thomas J. Langston
  • Publication number: 20210379439
    Abstract: Training equipment includes a hollow shaft having a sidewall defining an internal cavity and at least one polymer material filling at least a portion of the internal cavity. The polymer material may fill the entire internal cavity of the hollow shaft. The polymer material may be a visco-elastic polymer material or polyurethane. A spacer or a filler may fill at least a portion of the internal cavity. A method of making weighted training equipment with a hollow shaft having a sidewall defining an internal cavity may include injecting a curable composition into at least a portion of the internal cavity. The method may further include curing the curable composition into a polymer material.
    Type: Application
    Filed: August 23, 2021
    Publication date: December 9, 2021
    Inventor: Thomas J. Langston
  • Patent number: 11097146
    Abstract: Training equipment includes a hollow shaft having a sidewall defining an internal cavity and at least one polymer material filling at least a portion of the internal cavity. The polymer material may fill the entire internal cavity of the hollow shaft. The polymer material may be a visco-elastic polymer material or polyurethane. A spacer or a filler may fill at least a portion of the internal cavity. A method of making weighted training equipment with a hollow shaft having a sidewall defining an internal cavity may include injecting a curable composition into at least a portion of the internal cavity. The method may further include curing the curable composition into a polymer material.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: August 24, 2021
    Assignee: CAXY SPORTS, LLC
    Inventor: Thomas J. Langston
  • Publication number: 20190168057
    Abstract: Training equipment includes a hollow shaft having a sidewall defining an internal cavity and at least one polymer material filling at least a portion of the internal cavity. The polymer material may fill the entire internal cavity of the hollow shaft. The polymer material may be a visco-elastic polymer material or polyurethane. A spacer or a filler may fill at least a portion of the internal cavity. A method of making weighted training equipment with a hollow shaft having a sidewall defining an internal cavity may include injecting a curable composition into at least a portion of the internal cavity. The method may further include curing the curable composition into a polymer material.
    Type: Application
    Filed: November 27, 2018
    Publication date: June 6, 2019
    Inventor: Thomas J. Langston
  • Patent number: 5237136
    Abstract: In accordance with illustrative embodiments of the present invention, a safety bypass switch for use with explosive well tools includes a hollow conductive body having a copper conductor rod extending axially therethrough, a spring-loaded contact element movable transversely in the body between a first position where a surface of the element engages the rod to provide a solid short between the rod and the body, and a second position where such surface is out of engagement with the rod, and a diaphragm or piston for operating the contact element in a manner such that a predetermined hydrostatic pressure in the well bore will shift the contact element to the second position. The springs which bias the element toward the first position are mounted internally and externally of the body. In another embodiment of the invention a manually operated grounding switch is used in combination with the hydrostatic pressure operated switch to provide redundant assurance against accidental firing.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: August 17, 1993
    Inventor: Thomas J. Langston
  • Patent number: 5165489
    Abstract: In accordance with illustrative embodiments of the present invention, a hydrostatic pressure-responsive safety sub that prevents firing of an explosive well tool until it has been lowered below a predetermined depth in a fluid-filled well bore includes a body having an upper chamber that houses a detonator and a lower chamber that houses a booster which is attached to a primercord. A passageway between these chambers normally is blocked by an inner portion of a spring-loaded, hydrostatic pressure-responsive piston which is shifted inward against the bias of a combination of springs. When the explosive tool has been lowered to a predetermined depth in the well, a bore in the piston becomes aligned with the passageway between the chambers so that explosive forces generated by explosion of the detonator can reach the booster.
    Type: Grant
    Filed: February 20, 1992
    Date of Patent: November 24, 1992
    Inventor: Thomas J. Langston
  • Patent number: 4967048
    Abstract: In accordance with illustrative embodiments of the present invention as disclosed herein, a safety switch for preventing accidental firing of an explosive well tool includes a tubular metal body connected between the cable head and the well tool, a conductor wire extending through such body for carrying current from the cable to the well tool, and a contact plug mounted in a slide opening in the body and arranged to be selectively advanced into shorting contact with the conductor wire.
    Type: Grant
    Filed: February 22, 1990
    Date of Patent: October 30, 1990
    Inventor: Thomas J. Langston