Patents by Inventor Dwight E. Walters

Dwight E. Walters 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).

  • Gas sampling system
    Patent number: 4402910
    Abstract: A gaseous stream of steam is analyzed for hydrogen sulfide by keeping the gas stream above its dew point while withdrawing a representative sample, mixing the sample with a gas having a dew point lower than that of the gaseous stream to form a mixture with a dew point below that of the gaseous stream, and analyzing the mixture at a temperature above its dew point for hydrogen sulfide.
    Type: Grant
    Filed: July 1, 1982
    Date of Patent: September 6, 1983
    Assignee: Exlog Smith
    Inventors: Robert F. Smith, Dwight E. Walters
  • Method for measuring the level of hydrogen sulfide in geothermal steam
    Patent number: 4355997
    Abstract: A gaseous stream of steam is analyzed for hydrogen sulfide by keeping the gas stream above its dew point while withdrawing a representative sample, mixing the sample with a gas having a dew point lower than that of the gaseous stream to form a mixture with a dew point below that of the gaseous steam, and analyzing the mixture at a temperature above its dew point for hydrogen sulfide.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: October 26, 1982
    Assignee: R. F. Smith Corp.
    Inventors: Robert F. Smith, Dwight E. Walters