Patents by Inventor Walter H. Williamson

Walter H. Williamson 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 for purification of gas streams by removal of acidic gases
    Patent number: 3961018
    Abstract: A method and apparatus for removal of acidic gases from a gas stream by contacting the gas stream with an amine vapor in a reaction zone. The partial pressure of amine vapor in the reaction zone is at least 5 percent of the total pressure therein, resulting in removal of at least 99 percent of the acidic gases. When operating at ambient temperature and substantially atmospheric pressure, preferred amines are methylamine and dimethylamine.
    Type: Grant
    Filed: December 6, 1973
    Date of Patent: June 1, 1976
    Assignee: United Air Specialists, Inc.
    Inventor: Walter H. Williamson