Patents by Inventor Herbert R. Schaub

Herbert R. Schaub 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).

  • Simultaneous step pressure swing adsorption process
    Patent number: 5536299
    Abstract: Process swing adsorption processes for gas separation are carried out using overlapping pressure swing adsorption, feed gas repressurization and desorption steps. The adsorptive capacity of the system employed is increased, unit power consumption is decreased, and the overall efficiency of the operation is enhanced.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: July 16, 1996
    Assignee: Praxair Technology, Inc.
    Inventors: Amanda K. Girard, Herbert R. Schaub
  • Pressure swing adsorption process
    Patent number: 5518526
    Abstract: A pressure swing adsorption process employs a simultaneous equalization and evacuation step followed by simultaneous feed and product gas repressurization steps, resulting in faster processing, and a reduction in power requirements, in the recovery of oxygen and argon from feed air.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: May 21, 1996
    Assignee: Praxair Technology, Inc.
    Inventors: Mohamed S. A. Baksh, Vincent J. Kibler, Herbert R. Schaub
  • Pressure swing adsorption heat recovery
    Patent number: 5453112
    Abstract: Waste heat generated within a pressure swing adsorption system is effectively captured and utilized to preheat the feed gas passing to a feed gas blower for compression to the desired adsorption pressure level. The energy efficiency of the system, and overall system performance, are thereby enhanced.
    Type: Grant
    Filed: February 2, 1994
    Date of Patent: September 26, 1995
    Assignee: Praxair Technology, Inc.
    Inventors: Michael J. Sinicropi, Timothy M. Aaron, Frederick W. Leavitt, Herbert R. Schaub, James Smolarek
  • Tuning of vacuum pressure swing adsorption systems
    Patent number: 5407465
    Abstract: Vacuum and other pressure swing adsorption vessels are monitored, and corrective adjustments are made in the pressure equalization and/or repressurization steps in response to imbalances in the temperature profiles of the vessels in order to tune the system. The PSA process is also desirably purge tuned to avoid over purging or under purging of each vessel.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: April 18, 1995
    Assignee: Praxair Technology, Inc.
    Inventors: Herbert R. Schaub, James Smolarek, Frederick W. Leavitt, Lee J. Toussaint, Kimberly A. LaSala
  • Membrane/deoxo control method and system
    Patent number: 5077029
    Abstract: Membrane or pressure swing adsorption systems are used for air separation, with the crude nitrogen stream obtained thereby passing to a catalytic combustion system for reaction of residual oxygen with hydrogen to produce a high purity nitrogen product. Excess hydrogen in the nitrogen product is minimized by controlling the amount of hydrogen employed based on the instantaneous crude nitrogen flow and purity, and adjusting hydrogen ingestion in response to nitrogen product purity feedback. Plant flow rate tracking control limits maximum rates of flow change to ensure stable operation.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: December 31, 1991
    Assignee: Union Carbide Industrial Gases Technology Corporation
    Inventor: Herbert R. Schaub
  • High pressure gas supply system
    Patent number: 4961325
    Abstract: Method and apparatus for supplying gas, especially a cryogenic gas, to a use point at high pressure, especially supercritical pressure, with little or no lag time comprising a gas supply for quickly pressurizing a vaporizable liquid and the vaporization of the pressurized liquid for high pressure gas supply.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: October 9, 1990
    Assignee: Union Carbide Corporation
    Inventors: Thomas G. Halvorson, Herbert R. Schaub
  • Gas supply system for variable demand application
    Patent number: 4627243
    Abstract: A system for the supply of gas to a variable flowrate consumption use point comprising monitoring specified system parameters, making specified determinations, and adjustable the liquid pump speed accordingly. Preferably the monitoring is computerized. The invention results in a less costly and more efficient gas supply system.
    Type: Grant
    Filed: September 26, 1985
    Date of Patent: December 9, 1986
    Assignee: Union Carbide Corporation
    Inventor: Herbert R. Schaub