Patents by Inventor Elman Roe

Elman Roe 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).

  • Apparatus for producing a controlled atmosphere
    Patent number: 5152966
    Abstract: An apparatus for producing a controlled atmosphere in an area by providing for the removal of oxygen, carbon dioxide, water droplets and ethylene from a gas stream. The apparatus includes two compressors to increase the pressure of the gases present which are then separated by diffusion across at least two membranes.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: October 6, 1992
    Assignee: Nicap, Inc.
    Inventors: Elman Roe, William R. Ash, Terry Campbell, Steve Forney
  • Method and apparatus for producing a controlled atmosphere
    Patent number: 4817391
    Abstract: A method and apparatus for producing a controlled atmosphere in an area. The method includes the intermittent removal of oxygen, carbon dioxide water vapor and ethylene from the area. An apparatus to practice the method is disclosed that includes a compressor to increase the pressure of the gases present which are then separated by diffusion across membranes.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: April 4, 1989
    Inventors: Elman Roe, William R. Ash, Terry Campbell, Steve Forney