Patents by Inventor Ronald J. Grader

Ronald J. Grader 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).

  • Pressure swing adsorption process for supplying oxygen under variable demand conditions
    Patent number: 4643743
    Abstract: In a pressure swing adsorption system for the supply of enriched oxygen to a variable demand wastewater treatment system, the oxygen product to feed air ratio is increased during periods of reduced oxygen demand, with the enriched oxygen being supplied to the wastewater treatment system at lower purity levels during such periods of reduced demand than the purity levels supplied under maximum demand conditions. Operation in this manner enables oxygen recovery to be enhanced and the power requirements to be reduced under such variable demand conditions.
    Type: Grant
    Filed: February 10, 1983
    Date of Patent: February 17, 1987
    Assignee: Union Carbide Corporation
    Inventor: Ronald J. Grader
  • Water ozonation method
    Patent number: 4352740
    Abstract: A method for ozonation of a water stream by providing at least 70% by volume oxygen feed gas, generating 4-8% by wt. ozone in such gas by silent electric discharge with low power per unit ozone, contacting with water to dissolve ozone, and atmospherically venting ozone-depleted gas from the contacting.
    Type: Grant
    Filed: February 8, 1980
    Date of Patent: October 5, 1982
    Assignee: Linde Aktiengesellschaft
    Inventors: Ronald J. Grader, Richard P. Johansen