Patents by Inventor David A. Alexander

David A. Alexander 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: 10947790
    Abstract: A connector for a coiled tubing end anchors internally and seals externally. The anchor profile is split with a gap to clear an internal spline without need to remove the spline to allow a seal to enter the coiled tubing since the seal is mounted internally to a sleeve that envelops the end of the coiled tubing. Component relative rotation extends the internal anchor radially against the coiled tubing inner wall to secure the connection with the seal engaged to the coiled tubing outer wall.
    Type: Grant
    Filed: December 14, 2019
    Date of Patent: March 16, 2021
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: David A. Alexander, Levi B. Oberg, Erik van Steveninck, Brian Voisin, David C. Johnson
  • Publication number: 20200115966
    Abstract: A connector for a coiled tubing end anchors internally and seals externally. The anchor profile is split with a gap to clear an internal spline without need to remove the spline to allow a seal to enter the coiled tubing since the seal is mounted internally to a sleeve that envelops the end of the coiled tubing. Component relative rotation extends the internal anchor radially against the coiled tubing inner wall to secure the connection with the seal engaged to the coiled tubing outer wall.
    Type: Application
    Filed: December 14, 2019
    Publication date: April 16, 2020
    Applicant: Baker Hughes, a GE company, LLC
    Inventors: David A. Alexander, Levi B. Oberg, Erik van Steveninck, Brian Voisin, David C. Johnson
  • Publication number: 20190106946
    Abstract: A connector for a coiled tubing end anchors internally and seals externally. The anchor profile is split with a gap to clear an internal spline without need to remove the spline to allow a seal to enter the coiled tubing since the seal is mounted internally to a sleeve that envelops the end of the coiled tubing. Component relative rotation extends the internal anchor radially against the coiled tubing inner wall to secure the connection with the seal engaged to the coiled tubing outer wall.
    Type: Application
    Filed: October 5, 2017
    Publication date: April 11, 2019
    Applicant: Baker Hughes, a GE company, LLC
    Inventors: David A. Alexander, Levi B. Oberg, Erik van Steveninck, Brian Voisin, David C. Johnson
  • Patent number: 5423781
    Abstract: A method and apparatus for measuring the volume of a fluid using a load cell transducer in which the container holding the fluid, such as a cardiotomy reservoir, is firmly but detachably engaged to an adapter for a load cell transducer. Further, this invention relates to a method and apparatus for detecting the presence and alignment of the container on a load cell so as to allow accurate measurement of the volume of a fluid contained within the container. The apparatus generally includes a magnetic ring on a bottom-facing surface of the container, a metallic ring on an upward-facing surface of the mounting adapter for the load cell and a sensor capable of detecting a magnetic field.
    Type: Grant
    Filed: May 11, 1992
    Date of Patent: June 13, 1995
    Assignee: The UAB Research Foundation
    Inventors: David A. Alexander, Martin J. McCutcheon
  • Patent number: 4247339
    Abstract: A paint suitable for use in a fountain brush comprising up to 5% by weight of a pigment dispersed in an aqueous medium containing a suspending agent and a surfactant dispersing agent; the paint exhibits advantageous properties used in a fountain brush comprising a brush, a reservoir containing the paint and flow-restricting means for regulating the flow of paint. The preferred suspending agent is hectorite.
    Type: Grant
    Filed: December 27, 1978
    Date of Patent: January 27, 1981
    Assignee: Magic Brush Limited
    Inventors: Terence W. Bolton, John A. Eggleden, David A. Alexander
  • Patent number: D313060
    Type: Grant
    Filed: May 18, 1988
    Date of Patent: December 18, 1990
    Inventors: Jimmy E. Alexander, David A. Alexander