Patents by Inventor Dave Elpern

Dave Elpern 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).

  • Turbine nozzle assemblies and methods for repairing turbine nozzle assemblies
    Patent number: 8770933
    Abstract: A method is provided for repairing a turbine nozzle assembly with an insert and a support structure. The method includes positioning the insert on the support structure of the turbine nozzle assembly; and plug welding the insert to the support structure of the turbine nozzle assembly.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: July 8, 2014
    Assignee: Honeywell International Inc.
    Inventors: Robert P. Chen, Dave Elpern, Stephen Vaccarezza, Alvin Powell
  • TURBINE NOZZLE ASSEMBLIES AND METHODS FOR REPAIRING TURBINE NOZZLE ASSEMBLIES
    Publication number: 20120063894
    Abstract: A method is provided for repairing a turbine nozzle assembly with an insert and a support structure. The method includes positioning the insert on the support structure of the turbine nozzle assembly; and plug welding the insert to the support structure of the turbine nozzle assembly.
    Type: Application
    Filed: May 31, 2011
    Publication date: March 15, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Robert P. Chen, Dave Elpern, Stephen Vaccarezza, Alvin Powell
  • Sleeve in end rings for permanent magnet rotor
    Patent number: 7812495
    Abstract: A permanent magnet rotor for an electric motor may include a rotor assembly that will hold the magnets in place. A pair of rings is added to the sleeve to tightly engage and press against the end plates and the magnets. This configuration provides additional securement against axial and radially shifting of the magnets.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: October 12, 2010
    Assignee: Honeywell International Inc.
    Inventors: Sam Shiao, Dave Elpern, Terry Morris, Bob Dietrich
  • Wide flow compressor with diffuser bypass
    Patent number: 7736126
    Abstract: A centrifugal compressor is modified by forming a bypass between the leading edge of the compressor diffuser and a point downstream from the throat of the diffuser. The bypass may be unidirectional or bi-directional. In a bi-directional embodiment, an operable flow range of the compressor can be widened in both directions of a compressor map, i.e., extending both the surge and choke margins of a compressor at the expense of normal operating efficiencies. In a unidirectional bypass embodiment the flow range may be increased only in one direction, but there is no diminishment of efficiency of the compressor at normal operating conditions. The modification provides a simple expedient for increasing flow range without a need to redesign a compressor.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: June 15, 2010
    Assignee: Honeywell International Inc.
    Inventors: Fidel M. Joco, Frank F. Lin, Dave Elpern
  • SLEEVE IN END RINGS FOR PERMANENT MAGNET ROTOR
    Publication number: 20090284093
    Abstract: A permanent magnet rotor for an electric motor may include a rotor assembly that will hold the magnets in place. A pair of rings is added to the sleeve to tightly engage and press against the end plates and the magnets. This configuration provides additional securement against axial and radially shifting of the magnets.
    Type: Application
    Filed: May 16, 2008
    Publication date: November 19, 2009
    Inventors: SAM SHIAO, Dave Elpern, Terry Morris, Bob Dietrich
  • WIDE FLOW COMPRESSOR WITH DIFFUSER BYPASS
    Publication number: 20080118341
    Abstract: A centrifugal compressor is modified by forming a bypass between the leading edge of the compressor diffuser and a point downstream from the throat of the diffuser. The bypass may be unidirectional or bi-directional. In a bi-directional embodiment, an operable flow range of the compressor can be widened in both directions of a compressor map, i.e., extending both the surge and choke margins of a compressor at the expense of normal operating efficiencies. In a unidirectional bypass embodiment the flow range may be increased only in one direction, but there is no diminishment of efficiency of the compressor at normal operating conditions. The modification provides a simple expedient for increasing flow range without a need to redesign a compressor.
    Type: Application
    Filed: November 16, 2006
    Publication date: May 22, 2008
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: FIDEL M. JOCO, FRANK F. LIN, DAVE ELPERN