Patents by Inventor Norman Richard McCombs

Norman Richard McCombs 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 apparatus
    Patent number: 5871564
    Abstract: A pressure swing adsorption apparatus to vary selectively the concentration of at least one constituent of a gaseous mixture by sending a gaseous mixture into an adsorber to generate a particular product gas while delivering to another adsorber both a predetermined portion of the product gas to purge the other adsorber of its adsorbed gas and a selected amount of the product gas, independent of the flow rate and in addition to the predetermined portion, to produce a desired relative concentration of the constituents of the product gas from a range of relative concentrations.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: February 16, 1999
    Inventor: Norman Richard McCombs