Patents by Inventor Steven J. Liu

Steven J. Liu 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).

  • Publication number: 20220243515
    Abstract: A cable-operated drive mechanism for a powered motor vehicle sliding closure panel and method of construction of the cable-operated drive mechanism is provided. The cable-operated drive mechanism includes a cable drum mechanism having a first cable drum supported for rotation about a first drum axis and a second cable drum supported for rotation about a second drum axis. A first cable winds and unwinds about the first cable drum in response to rotation of the first cable drum in opposite directions and a second cable unwinds and winds about the second cable drum in response to rotation of the second cable drum in opposite directions. A drive member is operably coupled to at least one of the first cable drum and second cable drum to drive the first and second cable drums in unison with one another.
    Type: Application
    Filed: July 27, 2020
    Publication date: August 4, 2022
    Inventors: Michael BAYLEY, Steven J. LIU, Yufei LU
  • Patent number: 10584525
    Abstract: A powered actuator unit for use in a closure system of a motor vehicle. The powered actuator unit includes a common housing configured to house a brushless DC (BLDC) electronic motor unit, a gear drive unit, a shift support arrangement, and a controller arrangement. The motor unit has a stator unit that includes a plurality of electromagnetic subassemblies each having a carrier and a winding unit. The carrier includes an outer ring segment being planar and an inner ring segment being arcuate and a web segment interconnecting the outer ring segment and the inner ring segment and the plurality of electromagnetic subassemblies are each adapted to abut one another in an annular arrangement upon assembly. The outer ring segments define an outer peripheral surface of the stator unit having a polygonal cross-section and the inner ring segments define a rotor cavity having a circular cross-section.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: March 10, 2020
    Assignee: MAGNA CLOSURES INC.
    Inventors: Liping Wang, Steven J. Liu, Michael Bayley
  • Publication number: 20190284860
    Abstract: A powered actuator unit for use in a closure system of a motor vehicle. The powered actuator unit includes a common housing configured to house a brushless DC (BLDC) electronic motor unit, a gear drive unit, a shift support arrangement, and a controller arrangement. The motor unit has a stator unit that includes a plurality of electromagnetic subassemblies each having a carrier and a winding unit. The carrier includes an outer ring segment being planar and an inner ring segment being arcuate and a web segment interconnecting the outer ring segment and the inner ring segment and the plurality of electromagnetic subassemblies are each adapted to abut one another in an annular arrangement upon assembly. The outer ring segments define an outer peripheral surface of the stator unit having a polygonal cross-section and the inner ring segments define a rotor cavity having a circular cross-section.
    Type: Application
    Filed: June 4, 2019
    Publication date: September 19, 2019
    Inventors: Liping Wang, Steven J. Liu, Michael Bayley
  • Patent number: 10337231
    Abstract: A powered actuator unit for use in a closure system of a motor vehicle. The powered actuator unit includes a common housing configured to house a brushless DC (BLDC) electronic motor unit, a gear drive unit, a shift support arrangement, and a controller arrangement. The motor unit has a stator unit that includes a plurality of electromagnetic subassemblies each having a carrier and a winding unit. The carrier includes an outer ring segment being planar and an inner ring segment being arcuate and a web segment interconnecting the outer ring segment and the inner ring segment and the plurality of electromagnetic subassemblies are each adapted to abut one another in an annular arrangement upon assembly. The outer ring segments define an outer peripheral surface of the stator unit having a polygonal cross-section and the inner ring segments define a rotor cavity having a circular cross-section.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: July 2, 2019
    Assignee: MAGNA CLOSURES INC.
    Inventors: Liping Wang, Steven J. Liu, Michael Bayley
  • Publication number: 20170089115
    Abstract: A powered actuator unit for use in a closure system of a motor vehicle. The powered actuator unit includes a common housing configured to house a brushless DC (BLDC) electronic motor unit, a gear drive unit, a shift support arrangement, and a controller arrangement. The motor unit has a stator unit that includes a plurality of electromagnetic subassemblies each having a carrier and a winding unit. The carrier includes an outer ring segment being planar and an inner ring segment being arcuate and a web segment interconnecting the outer ring segment and the inner ring segment and the plurality of electromagnetic subassemblies are each adapted to abut one another in an annular arrangement upon assembly. The outer ring segments define an outer peripheral surface of the stator unit having a polygonal cross-section and the inner ring segments define a rotor cavity having a circular cross-section.
    Type: Application
    Filed: September 6, 2016
    Publication date: March 30, 2017
    Inventors: Liping Wang, Steven J. Liu, Michael Bayley