Patents by Inventor Andrew Davis Gilpin

Andrew Davis Gilpin 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).

  • Method and device for measuring surface properties
    Patent number: 10801966
    Abstract: A method and testing apparatus determine receding contact angles of liquids on surfaces by depositing a liquid in a manner whereby the volume of the drop is increased through stepwise addition of smaller drops. Each increment of volume growth causes the perimeter of the drop to advance across the surface. The incremental volume elements impart sufficient energy to the growing drop such that the drop perimeter expands beyond its equilibrium diameter for that volume. The drop perimeter tends to contract between volume additions as the excess energy is dissipated. The method and testing apparatus determine the receding contact angle between the incremental volume additions.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: October 13, 2020
    Assignee: BRIGHTON TECHNOLOGIES LLC
    Inventors: Raymond Giles Dillingham, Brietta Rose Oakley, Lucas Hale Dillingham, Andrew Davis Gilpin, Francis Charles Ganance, Timothy James Barry, Harun Mohammed
  • METHOD AND DEVICE FOR MEASURING SURFACE PROPERTIES
    Publication number: 20170307536
    Abstract: A method and testing apparatus determine receding contact angles of liquids on surfaces by depositing a liquid in a manner whereby the volume of the drop is increased through stepwise addition of smaller drops. Each increment of volume growth causes the perimeter of the drop to advance across the surface. The incremental volume elements impart sufficient energy to the growing drop such that the drop perimeter expands beyond its equilibrium diameter for that volume. The drop perimeter tends to contract between volume additions as the excess energy is dissipated. The method and testing apparatus determine the receding contact angle between the incremental volume additions.
    Type: Application
    Filed: October 26, 2015
    Publication date: October 26, 2017
    Inventors: Raymond Giles Dillingham, Brietta Rose Oakley, Lucas Hale Dillingham, Andrew Davis Gilpin, Frances Charles Ganance, Timothy James Barry, Harun Mohammed