Patents by Inventor Stephen J. Lind

Stephen J. Lind 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).

  • Combined secondary inlet bell and flow grid for a centrifugal fan or centrifugal compressor
    Patent number: 11473596
    Abstract: A centrifugal fan assembly including fan wheel, a primary inlet bell, a secondary inlet bell, and a flow grid. The primary inlet bell and secondary inlet bell direct air into an inlet of the fan wheel of the centrifugal fan. Also disclosed is a sound reduction assembly for reducing the sound produced by a centrifugal fan or centrifugal compressor. A method of directing air flowing into a centrifugal fan or a centrifugal compressor is also disclosed.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: October 18, 2022
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: Stephen J. Lind, Jay E. Grotelueschen
  • COMBINED SECONDARY INLET BELL AND FLOW GRID FOR A CENTRIFUGAL FAN OR CENTRIFUGAL COMPRESSOR
    Publication number: 20190032676
    Abstract: A centrifugal fan assembly including fan wheel, a primary inlet bell, a secondary inlet bell, and a flow grid. The primary inlet bell and secondary inlet bell direct air into an inlet of the fan wheel of the centrifugal fan. Also disclosed is a sound reduction assembly for reducing the sound produced by a centrifugal fan or centrifugal compressor. A method of directing air flowing into a centrifugal fan or a centrifugal compressor is also disclosed.
    Type: Application
    Filed: July 31, 2017
    Publication date: January 31, 2019
    Inventors: Stephen J. LIND, Jay E. GROTELUESCHEN
  • Secondary inlet cone for a plenum fan
    Patent number: 8231334
    Abstract: A plenum fan comprising a fan wheel disposed within a box-like enclosure includes a secondary inlet cone, a primary inlet cone, and a flexible duct. The two inlet cones convey air to the mouth of the fan wheel. A frame supports the fan wheel and the primary inlet cone such that the frame, the fan wheel and the primary inlet cone comprise a fan assembly. If the fan assembly shifts due to fan thrust or vibration, the fan assembly moves as a unit. The flexible duct connects the primary inlet cone to an inlet of the enclosure while isolating the fan assembly's vibration from the enclosure. The secondary inlet cone extends from the inlet of the enclosure, protrudes into or toward the primary inlet cone and provides a smooth airflow path over the abrupt shape of the flexible duct.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: July 31, 2012
    Assignee: Trane International Inc.
    Inventors: Stephen J. Lind, Thomas A. Ley, Dustin E. J. Meredith
  • Secondary Inlet Cone for a Plenum Fan
    Publication number: 20110064571
    Abstract: A plenum fan comprising a fan wheel disposed within a box-like enclosure includes a secondary inlet cone, a primary inlet cone, and a flexible duct. The two inlet cones convey air to the mouth of the fan wheel. A frame supports the fan wheel and the primary inlet cone such that the frame, the fan wheel and the primary inlet cone comprise a fan assembly. If the fan assembly shifts due to fan thrust or vibration, the fan assembly moves as a unit. The flexible duct connects the primary inlet cone to an inlet of the enclosure while isolating the fan assembly's vibration from the enclosure. The secondary inlet cone extends from the inlet of the enclosure, protrudes into or toward the primary inlet cone and provides a smooth airflow path over the abrupt shape of the flexible duct.
    Type: Application
    Filed: September 14, 2009
    Publication date: March 17, 2011
    Inventors: Stephen J. Lind, Thomas A. Ley, Dustin E.J. Meredith