Patents by Inventor Jason Jurkowski

Jason Jurkowski 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: 8704422
    Abstract: An electromagnetic machine has a rotor and a stator core. The stator core has a plurality of radially-extending teeth and a plurality of bridges having opposite ends secured to corresponding teeth. Stator windings are positioned at least partially in slots between the teeth. Each of the bridges is in a compressed configuration and includes a midsection radially offset from the ends. In a method of making an electromagnetic machine, stator windings are wound around the teeth of the stator core while the stator core is in an expanded configuration in which each of the slots is relatively wider and the configuration of the stator core is changed after winding, for example by compressing or otherwise deforming the bridges, to a compressed configuration in which each of the slots is relatively narrower. The bridges hold the teeth in the expanded configuration facilitating high slot fill without using a segmented stator.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: April 22, 2014
    Assignee: Nidec Motor Corporation
    Inventor: Jason Jurkowski
  • Patent number: 8400041
    Abstract: Segmented stator assemblies having a plurality of stator segments and a plurality of end caps are disclosed. According to one example embodiment, a segmented stator assembly includes a plurality of stator segments and a plurality of end caps. Each stator segment has a yoke portion and a tooth portion extending from the yoke portion. Each end cap is positioned over one of the stator segments. Each end cap includes a body portion positioned at least partially over the yoke portion of its associated stator segment. At least one of the body portions includes at least a first post that cooperates with a post of an adjacent end cap to define a first wire management tie-down. The stator assembly further includes a stator wire coupled to the first wire management tie-down. Stator assemblies and end caps having other wire management and routing features are also disclosed.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: March 19, 2013
    Assignee: Nidec Motor Corporation
    Inventors: Chetan O. Modi, Mark Carrier, Jason Jurkowski
  • Publication number: 20120126659
    Abstract: An electromagnetic machine has a rotor and a stator core. The stator core has a plurality of radially-extending teeth and a plurality of bridges having opposite ends secured to corresponding teeth. Stator windings are positioned at least partially in slots between the teeth. Each of the bridges is in a compressed configuration and includes a midsection radially offset from the ends. In a method of making an electromagnetic machine, stator windings are wound around the teeth of the stator core while the stator core is in an expanded configuration in which each of the slots is relatively wider and the configuration of the stator core is changed after winding, for example by compressing or otherwise deforming the bridges, to a compressed configuration in which each of the slots is relatively narrower. The bridges hold the teeth in the expanded configuration facilitating high slot fill without using a segmented stator.
    Type: Application
    Filed: November 18, 2010
    Publication date: May 24, 2012
    Applicant: EMERSON ELECTRIC CO.
    Inventor: Jason Jurkowski
  • Publication number: 20110291519
    Abstract: Segmented stator assemblies having a plurality of stator segments and a plurality of end caps are disclosed. According to one example embodiment, a segmented stator assembly includes a plurality of stator segments and a plurality of end caps. Each stator segment has a yoke portion and a tooth portion extending from the yoke portion. Each end cap is positioned over one of the stator segments. Each end cap includes a body portion positioned at least partially over the yoke portion of its associated stator segment. At least one of the body portions includes at least a first post that cooperates with a post of an adjacent end cap to define a first wire management tie-down. The stator assembly further includes a stator wire coupled to the first wire management tie-down. Stator assemblies and end caps having other wire management and routing features are also disclosed.
    Type: Application
    Filed: September 24, 2010
    Publication date: December 1, 2011
    Applicant: Emerson Electric Co.
    Inventors: Chetan O. Modi, Mark Carrier, Jason Jurkowski
  • Patent number: 7589847
    Abstract: An image is identified in a PDF file. The PDF file is converted into a postscript data stream. The identified image is located in the postscript data stream. The located image is segregated from the postscript data stream. The segregated located image is stored separately from a remainder of the postscript data stream. A reference is associated with the separately stored image. The associated reference is inserted into the postscript data stream in place of the separately stored image.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: September 15, 2009
    Assignee: Xerox Corporation
    Inventors: Jason Jurkowski, Simon Barnett
  • Publication number: 20070114877
    Abstract: A stator for an electromagnetic machine includes a plurality of discrete and individually wound stator segments having end caps positioned on the segments. The end caps have legs for positioning the end cap on the segments with an interference fit. The end caps have angled surfaces to facilitate winding of wire on the segments. The end caps have male and female couplings that mate together to couple adjacent segments together. The end caps have fingers and slots for aligning the segments on substantially the same plane. The end caps have wire isolation features, including hooks, shelves and ledges, for separating the interconnect wires routed on the stator to electrically interconnect the segments. The segments include scalloped contours on their outer edges for draining oil, and the end caps have passages for draining oil.
    Type: Application
    Filed: October 2, 2006
    Publication date: May 24, 2007
    Inventors: Weirong Wang, Paul Michaels, John Rose, Mark Carrier, Jason Jurkowski
  • Publication number: 20070019221
    Abstract: An image is identified in a PDF file. The PDF file is converted into a postscript data stream. The identified image is located in the postscript data stream. The located image is segregated from the postscript data stream. The segregated located image is stored separately from a remainder of the postscript data stream. A reference is associated with the separately stored image. The associated reference is inserted into the postscript data stream in place of the separately stored image.
    Type: Application
    Filed: July 20, 2005
    Publication date: January 25, 2007
    Inventors: Jason Jurkowski, Simon Barnett
  • Publication number: 20060028092
    Abstract: A stator for an electromagnetic machine includes a plurality of discrete and individually wound stator segments having end caps positioned on the segments. The end caps have legs for positioning the end cap on the segments with an interference fit. The end caps have angled surfaces to facilitate winding of wire on the segments. The end caps have male and female couplings that mate together to couple adjacent segments together. The end caps have fingers and slots for aligning the segments on substantially the same plane. The end caps have wire isolation features, including hooks, shelves and ledges, for separating the interconnect wires routed on the stator to electrically interconnect the segments. The segments include scalloped contours on their outer edges for draining oil, and the end caps have passages for draining oil.
    Type: Application
    Filed: October 5, 2005
    Publication date: February 9, 2006
    Inventors: Weirong Wang, John Rose, Paul Michaels, Mark Carrier, Jason Jurkowski
  • Publication number: 20050212377
    Abstract: A stator for an electromagnetic machine includes a plurality of discrete and individually wound stator segments having end caps positioned on the segments. The end caps have legs for positioning the end cap on the segments with an interference fit. The end caps have angled surfaces to facilitate winding of wire on the segments. The end caps have male and female couplings that mate together to couple adjacent segments together. The end caps have fingers and slots for aligning the segments on substantially the same plane. The end caps have wire isolation features, including hooks, shelves and ledges, for separating the interconnect wires routed on the stator to electrically interconnect the segments. The segments include scalloped contours on their outer edges for draining oil, and the end caps have passages for draining oil.
    Type: Application
    Filed: March 23, 2004
    Publication date: September 29, 2005
    Applicant: Emerson Electric Co.
    Inventors: Weirong Wang, John Rose, Paul Michaels, Mark Carrier, Jason Jurkowski
  • Publication number: 20050212378
    Abstract: A stator for an electromagnetic machine includes a plurality of discrete and individually wound stator segments having end caps positioned on the segments. The end caps have legs for positioning the end cap on the segments with an interference fit. The end caps have angled surfaces to facilitate winding of wire on the segments. The end caps have male and female couplings that mate together to couple adjacent segments together. The end caps have fingers and slots for aligning the segments on substantially the same plane. The end caps have wire isolation features, including hooks, shelves and ledges, for separating the interconnect wires routed on the stator to electrically interconnect the segments. The segments include scalloped contours on their outer edges for draining oil, and the end caps have passages for draining oil.
    Type: Application
    Filed: March 23, 2004
    Publication date: September 29, 2005
    Applicant: Emerson Electric Co.
    Inventors: Weirong Wang, Paul Michaels, John Rose, Mark Carrier, Jason Jurkowski