Patents by Inventor Alan D. Abel

Alan D. Abel 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).

  • Control of product withdrawal from a sorptive separation system
    Patent number: 4995889
    Abstract: An apparatus and method for regulating flow of product gas from a sorptive separation apparatus, especially during periods of discontinuous product supply and variable demand is set forth.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: February 26, 1991
    Assignee: Air Products and Chemials, Inc.
    Inventors: Alan D. Abel, William E. Waldron, Theodore F. Wells
  • Adsorptive separation utilizing multiple adsorption beds
    Patent number: 4892565
    Abstract: A process is described for recovery of a more selectively adsorbed key component from a gas mixture containing the key component and one or more less selectively adsorbed secondary components using vacuum swing adsorption. The process minimizes capital costs by reducing or eliminating gas storage vessels and reduces power requirements by operating without a feed compressor or elevated pressure feed, whereby feed is induced at least in part by vacuum conditions achieved by pressure equalization between parallel adsorption beds. Alternatively, at least a minor amount of less selectively adsorbed secondary component roduct can be recovered.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: January 9, 1990
    Assignee: Air Products and Chemicals, Inc.
    Inventors: William P. Schmidt, Ravi Kumar, Alan D. Abel
  • Adsorptive nitrogen generation utilizing multiple adsorption beds
    Patent number: 4813977
    Abstract: A process is described for nitrogen recovery from air using vacuum swing adsorption. The process minimizes capital costs by reducing or eliminating gas storage vessels and reduces power requirements by operating without an air feed compressor or elevated pressure feed, whereby air feed is induced by vacuum conditions achieved by pressure equalization between parallel adsorption beds. Alternatively, a minor amount of oxygen product can be recovered.
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: March 21, 1989
    Assignee: Air Products and Chemicals, Inc.
    Inventors: William P. Schmidt, Ravi Kumar, Alan D. Abel