Patents by Inventor Douglas E. Azwell

Douglas E. Azwell 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).

  • Patent number: 9005340
    Abstract: A fiber bed assembly used to remove aerosols and/or wetted soluble solids from a moving gas stream includes a fiber bed support and a fiber bed supported by the fiber bed support so that the gas stream passes through the fiber bed moving from an upstream space to a downstream space with respect to the fiber bed. A re-entrainment control device is located within a downstream space defined by the fiber bed so that at least a portion of the gas stream passes through the re-entrainment control device. The re-entrainment control device is shaped to change the direction of the average flow path of the gas stream as the gas stream passes through the re-entrainment control device so as to cause aerosols and/or wettable solids contained therein to be separated from the gas stream by inertial force. A re-entrainment control device and method of use are also disclosed.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: April 14, 2015
    Assignee: MECS, Inc.
    Inventors: Douglas E. Azwell, Frederick L. Mueller, Steven A. Ziebold, Julie Marie Wagner
  • Publication number: 20140096683
    Abstract: A fiber bed assembly used to remove aerosols and/or wetted soluble solids from a moving gas stream includes a fiber bed support and a fiber bed supported by the fiber bed support so that the gas stream passes through the fiber bed moving from an upstream space to a downstream space with respect to the fiber bed. A re-entrainment control device is located within a downstream space defined by the fiber bed so that at least a portion of the gas stream passes through the re-entrainment control device. The re-entrainment control device is shaped to change the direction of the average flow path of the gas stream as the gas stream passes through the re-entrainment control device so as to cause aerosols and/or wettable solids contained therein to be separated from the gas stream by inertial force. A re-entrainment control device and method of use are also disclosed.
    Type: Application
    Filed: October 4, 2012
    Publication date: April 10, 2014
    Applicant: MECS, INC.
    Inventors: Douglas E. Azwell, Frederick L. Mueller, Steven A. Ziebold, Julie Marie Wagner
  • Patent number: 8636819
    Abstract: A fiber assembly for a forward-flow fiber bed mist eliminator used to remove aerosols from a moving gas stream. The assembly incorporates an improved drainage system for draining aerosols from the fiber bed without the need for a conventional seal-leg.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: January 28, 2014
    Assignee: MECS, Inc.
    Inventors: Douglas E. Azwell, Frederick L. Mueller, Steven A. Ziebold
  • Patent number: 8632616
    Abstract: A fiber assembly for a forward-flow fiber bed mist eliminator used to remove aerosols from a moving gas stream. The assembly incorporates an improved drainage system for draining aerosols from the fiber bed without the need for a conventional seal-leg.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: January 21, 2014
    Assignee: MECS, Inc.
    Inventors: Douglas E. Azwell, Frederick L. Mueller, Steven A. Ziebold, Julie M. Bruemmer
  • Publication number: 20110056378
    Abstract: A fiber assembly for a forward-flow fiber bed mist eliminator used to remove aerosols from a moving gas stream. The assembly incorporates an improved drainage system for draining aerosols from the fiber bed without the need for a conventional seal-leg.
    Type: Application
    Filed: September 8, 2009
    Publication date: March 10, 2011
    Applicant: MECS, INC.
    Inventors: Douglas E. Azwell, Frederick L. Mueller, Steven A. Ziebold
  • Publication number: 20110056381
    Abstract: A fiber assembly for a forward-flow fiber bed mist eliminator used to remove aerosols from a moving gas stream. The assembly incorporates an improved drainage system for draining aerosols from the fiber bed without the need for a conventional seal-leg.
    Type: Application
    Filed: November 4, 2009
    Publication date: March 10, 2011
    Applicant: MECS, INC.
    Inventors: Douglas E. Azwell, Frederick L. Mueller, Steven A. Ziebold, Julie M. Bruemmer
  • Publication number: 20110023428
    Abstract: A mist eliminator for use in removing aerosols and particularly liquids from a gas flow. The mist eliminator includes filter panels made of fiber material that arranged generally parallel to the inflow of gas into the mist eliminator. The construction of the mist eliminator controls gas velocities and provides sufficient aerosol removal in a compact volume at low operating pressure drop.
    Type: Application
    Filed: August 19, 2009
    Publication date: February 3, 2011
    Applicant: MECS, INC.
    Inventors: Steven A. Ziebold, Frederick L. Mueller, Mark Spence, Douglas E. Azwell
  • Patent number: 7758665
    Abstract: A fiber bed mist eliminator has a fiber bed which is formed of a composite fiber bed collecting media strip including a collection layer which is not subjected to needle punching. The fiber bed can be made very thin while retaining high efficiency in removing small particles of aerosol from a gas stream passing through the fiber bed. The fiber bed collecting media strip lends itself to be applied to the mist eliminator by spirally wrapping the element onto the mist eliminator. The fiber bed collecting media strip can overlap itself to seal at the locations where the fiber element overlaps itself. The fiber bed collecting media strip can be provided to the field in different formats for use in making a mist eliminator fiber bed.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: July 20, 2010
    Assignee: MECS, Inc.
    Inventors: Steven A. Ziebold, Douglas E. Azwell, Fredrick L. Mueller, John S. Merz, Pierre L. Eemans
  • Publication number: 20080314009
    Abstract: A fiber bed mist eliminator has a fiber bed which is formed of a composite fiber bed collecting media strip including a collection layer which is not subjected to needle punching. The fiber bed can be made very thin while retaining high efficiency in removing small particles of aerosol from a gas stream passing through the fiber bed. The fiber bed collecting media strip lends itself to be applied to the mist eliminator by spirally wrapping the element onto the mist eliminator. The fiber bed collecting media strip can overlap itself to seal at the locations where the fiber element overlaps itself. The fiber bed collecting media strip can be provided to the field in different formats for use in making a mist eliminator fiber bed.
    Type: Application
    Filed: June 11, 2008
    Publication date: December 25, 2008
    Applicant: MECS, INC.
    Inventors: Steven A. Ziebold, Douglas E. Azwell, Fredrick L. Mueller, John S. Merz, Pierre L. Eemans
  • Patent number: 7416576
    Abstract: A fiber bed assembly for a mist eliminator that operates at high efficiency and inhibits re-entrained liquid from leaving the mist eliminator. The fiber bed assembly has a construction that facilitates rapid drainage of liquid collected by the fiber bed. A pre-filter media can be employed upstream of the primary collection media to remove larger liquid drops. The pre-filter media can be used in unique combination with other features to reduce liquid re-entrainment, and/or allow increased flow capacity.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: August 26, 2008
    Assignee: MECS, Inc.
    Inventors: Steven A. Ziebold, Douglas E. Azwell, Frederick L. Mueller
  • Patent number: 7387656
    Abstract: A fiber bed mist eliminator has a fiber bed which is formed of a composite fiber bed collecting media strip including a collection layer which is not subjected to needle punching. The fiber bed can be made very thin while retaining high efficiency in removing small particles of aerosol from a gas stream passing through the fiber bed. The fiber bed collecting media strip lends itself to be applied to the mist eliminator by spirally wrapping the element onto the mist eliminator. The fiber bed collecting media strip can overlap itself to seal at the locations where the fiber element overlaps itself. The fiber bed collecting media strip can be provided to the field in different formats for use in making a mist eliminator fiber bed.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: June 17, 2008
    Assignee: MECS, Inc.
    Inventors: Steven A. Ziebold, Douglas E. Azwell, Fredrick L. Mueller, John S. Merz, Pierre L. Eemans