Patents by Inventor Davis W. Goodnight

Davis W. Goodnight 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).

  • Evaporation-driven engines
    Patent number: 10415550
    Abstract: Evaporation-driven engines are disclosed herein. An example engine can include a water source having a high humidity zone proximate the surface of the water source, a supporting structure, and a hygroscopic material disposed on the supporting structure and configured to generate mechanical force in response to a changing relative humidity. The hygroscopic material can be repeatedly exposed to the high humidity zone and removed from the high humidity zone thereby causing the hygroscopic material to generate mechanical force.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: September 17, 2019
    Assignee: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Xi Chen, Davis W. Goodnight, Ozgur Sahin
  • EVAPORATION-DRIVEN ENGINES
    Publication number: 20170051728
    Abstract: Evaporation-driven engines are disclosed herein. An example engine can include a water source having a high humidity zone proximate the surface of the water source, a supporting structure, and a hygroscopic material disposed on the supporting structure and configured to generate mechanical force in response to a changing relative humidity. The hygroscopic material can be repeatedly exposed to the high humidity zone and removed from the high humidity zone thereby causing the hygroscopic material to generate mechanical force.
    Type: Application
    Filed: May 8, 2015
    Publication date: February 23, 2017
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERISTY IN THE CITY OF NEW YORK
    Inventors: Xi Chen, Davis W. Goodnight, Ozgur Sahin