Patents by Inventor Rand Garfield

Rand Garfield 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).

  • Multilayer solid lubricant architecture for use in drilling tool applications
    Patent number: 11846160
    Abstract: A coating architecture is disclosed that includes a substrate having a surface finish Ra of 0.3? or finer, an intermediate layer overlying and in contact with the substrate; and a solid lubricant layer overlying and in contact with the intermediate layer. The test results of applying the coating architecture to a reciprocating hammer drill utilizing the coating is also disclosed.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: December 19, 2023
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Jiann-Cherng Su, Somuri V. Prasad, Rand Garfield
  • MULTILAYER SOLID LUBRICANT ARCHITECTURE FOR USE IN DRILLING TOOL APPLICATIONS
    Publication number: 20220010623
    Abstract: A coating architecture is disclosed that includes a substrate having a surface finish Ra of 0.3? or finer, an intermediate layer overlying and in contact with the substrate; and a solid lubricant layer overlying and in contact with the intermediate layer. The test results of applying the coating architecture to a reciprocating hammer drill utilizing the coating is also disclosed.
    Type: Application
    Filed: September 27, 2021
    Publication date: January 13, 2022
    Inventors: Jiann-Cherng Su, Somuri V. Prasad, Rand Garfield
  • Multilayer solid lubricant architecture for use in drilling tool applications
    Patent number: 11156033
    Abstract: A coating architecture is disclosed that includes a substrate having a surface finish Ra of 0.3? or finer, an intermediate layer overlying and in contact with the substrate; and a solid lubricant layer overlying and in contact with the intermediate layer. The test results of applying the coating architecture to a reciprocating hammer drill utilizing the coating is also disclosed.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: October 26, 2021
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Jiann-Cherng Su, Somuri V. Prasad, Rand Garfield
  • Cryogenic heating system
    Patent number: 10627050
    Abstract: The present invention relates to a cryogenic heating system including a plurality of stages to provide accurate temperature control. The system can be used to provide non-contact heating and cooling of a test sample by use of an inert fluid. Accurate temperature control can be maintained, e.g., by use of controllers to provide temperature feedback control.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: April 21, 2020
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Brendan L. Nation, Tomas Farley Babuska, Rand Garfield
  • High sensitivity bearing tester and systems thereof
    Patent number: 10371598
    Abstract: The present invention relates to an apparatus for testing a bearing, as well as systems including such an apparatus. In one instance, the apparatus allows for torsional losses of a bearing to be determined in a highly sensitive manner. Results can be determined in a controlled environment, as the system can include an environmental enclosure to encapsulate the testing apparatus.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: August 6, 2019
    Assignee: National Technology & Engineering Solutions of Sandis, LLC
    Inventors: Brendan L. Nation, Michael T. Dugger, Rand Garfield