Patents by Inventor Andrew K. Dummer

Andrew K. Dummer 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).

  • Radiation-Induced Thickening for Set-On-Command Sealant Compositions
    Publication number: 20110054067
    Abstract: The present invention includes compositions relating to the setting of fluids or slurries in a wellbore. In one embodiment, a sealant composition having a fluid component and a polymeric additive component can be subjected to ionizing radiation. The ionizing radiation can cause bonding between polymeric additive components and create a polymer matrix within the sealant composition that increases the mechanical strength of the sealant composition.
    Type: Application
    Filed: August 25, 2009
    Publication date: March 3, 2011
    Inventors: Samuel J. Lewis, David F. Myers, James Lynn Davis, Vikram Rao, Vijay Gupta, Lynn Margaret Soby, Andrew K. Dummer
  • Material sample preparation apparatus and method
    Patent number: 6928891
    Abstract: An automated apparatus for preparing material samples includes a rotatable drum support assembly, a drum rotatably contacting the drum support assembly, a fan, and a powered drive mechanism. The drum includes a hollow main section and first and second hollow end sections attached to the main section. The first hollow end section includes a first end wall tapering to a first outer aperture. The second hollow end section includes a second end wall tapering to a second outer aperture. The fan is mounted approximate to the first outer aperture for establishing forced air flow through the drum toward the second outer aperture. The drive mechanism rotatably communicates with the drum support assembly for rotating the drum. The apparatus is useful for preparing samples such as paving materials for test such as the determination of specific gravity and absorption.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: August 16, 2005
    Assignee: Troxler Electronic Laboratories, Inc.
    Inventor: Andrew K. Dummer
  • Material sample preparation apparatus and method
    Publication number: 20040200296
    Abstract: An automated apparatus for preparing material samples includes a rotatable drum support assembly, a drum rotatably contacting the drum support assembly, a fan, and a powered drive mechanism. The drum includes a hollow main section and first and second hollow end sections attached to the main section. The first hollow end section includes a first end wall tapering to a first outer aperture. The second hollow end section includes a second end wall tapering to a second outer aperture. The fan is mounted approximate to the first outer aperture for establishing forced air flow through the drum toward the second outer aperture. The drive mechanism rotatably communicates with the drum support assembly for rotating the drum. The apparatus is useful for preparing samples such as paving materials for test such as the determination of specific gravity and absorption.
    Type: Application
    Filed: April 8, 2003
    Publication date: October 14, 2004
    Applicant: Troxler Electronics Lab, Inc.
    Inventor: Andrew K. Dummer