Patents by Inventor Parakrama V. Weerappuli

Parakrama V. Weerappuli 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: 9643568
    Abstract: A seat belt retractor includes a housing and a spool supported by the housing. Webbing is wound around the spool. A webbing engagement member is supported by the housing and is movable to a locked position engaged with the webbing for preventing movement of the webbing relative to webbing engagement member. An activating device is slideably supported by the housing and is slideably engageable with the webbing engagement member for moving the webbing locking device to the locked position. In the locked position, the webbing locking device prevents the webbing from being fed from the spool, thus preventing any slack in the webbing on the spool from being fed out when the webbing locking device is in the locked position.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: May 9, 2017
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Mangala A. Jayasuriya, Parakrama V. Weerappuli, Saeed David Barbat
  • Patent number: 9511734
    Abstract: A passenger protection system includes a rotatable arm, a rotation mechanism rotatably attached to the rotatable arm, and a flexible sheet connected to the rotatable arm and connectable to a vehicle roof.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: December 6, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Parakrama V. Weerappuli, James Chih Cheng, Raed Essa EL-Jawahri, Mohammed Omar Faruque
  • Publication number: 20160221525
    Abstract: A passenger protection system includes a rotatable arm, a rotation mechanism rotatably attached to the rotatable arm, and a flexible sheet connected to the rotatable arm and connectable to a vehicle roof.
    Type: Application
    Filed: January 29, 2015
    Publication date: August 4, 2016
    Applicant: Ford Global Technologies, LLC
    Inventors: Parakrama V. Weerappuli, James Chih Cheng, Raed Essa EL-Jawahri, Mohammed Omar Faruque
  • Publication number: 20160159319
    Abstract: A seat belt retractor includes a housing and a spool supported by the housing. Webbing is wound around the spool. A webbing engagement member is supported by the housing and is movable to a locked position engaged with the webbing for preventing movement of the webbing relative to webbing engagement member. An activating device is slideably supported by the housing and is slideably engageable with the webbing engagement member for moving the webbing locking device to the locked position. In the locked position, the webbing locking device prevents the webbing from being fed from the spool, thus preventing any slack in the webbing on the spool from being fed out when the webbing locking device is in the locked position.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 9, 2016
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Mangala A. Jayasuriya, Parakrama V. Weerappuli, Saeed David Barbat
  • Patent number: 9333931
    Abstract: A passenger protection system includes a rotatable attachment mountable in a vehicle seat back, a first frame member rotatably connected to the rotatable attachment, and a flexible sheet having an upper edge connected to the first frame member.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: May 10, 2016
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: James Chih Cheng, Parakrama V. Weerappuli, Raed Essa El-Jawahri, Mohammed Omar Faruque
  • Patent number: 9205795
    Abstract: A passenger protection device includes a panel trim that is fittable to a vehicle instrument panel and a flexible sheet attached to each of at least a portion of the panel trim and at least a portion of an edge of the instrument panel.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: December 8, 2015
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: James Chih Cheng, Parakrama V. Weerappuli, Raed Essa El-Jawahri, Mohammed Omar Faruque
  • Patent number: 8800735
    Abstract: A dynamic energy management restraint anchor device interfaces with a child seat in a vehicle, engaging common child seat attachment clip features. A device restraint anchor is operable to dynamically extract and permit distortion of load bearing deformable member(s) in order to manage the displacement of, and load transferred through, an anchor connected to a child seat. The device may be further operable to limit or prevent restraint anchor displacement and the distortion of said deformable member(s) under quasi-static load conditions in order to meet motor vehicle static load/displacement anchorage performance requirements applicable to certain anchors. Anchor retraction capability and various interlocking configurations for securing the position of an anchor, before or after having extracted, may be incorporated relative to the energy management device interfacing with both a vehicle and a child seat. An indicator may further be provided to identify the functional state of the restraint device.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: August 12, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Richard Ruthinowski, Ian Brewster Hall, Parakrama V. Weerappuli, Brian Robert Spahn, Kevin Siasoco
  • Patent number: 8746792
    Abstract: An energy management load limiting vehicle seat member or construction is shown with collision energy absorbing and anti-submarining features.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: June 10, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Richard Ruthinowski, Ian Brewster Hall, Parakrama V. Weerappuli, Brian Robert Spahn, Kevin Siasoco
  • Patent number: 8662582
    Abstract: An inertial lock system for use with an anchorage system for at least one vehicle child seat, the inertial lock system. The inertial lock system includes a retainer; an anchor movably connected to the retainer; at least one energy managing component connected between the retainer and the anchor biasing the anchor in a first direction capable of managing energy transmitted between the anchor and the retainer when the anchor is displaced in the direction opposite the first direction; a retention switch component selectively engageable with the anchor to limit the movement of the anchor in the first direction; and an inertial switch selectively operable in response to a predetermined deceleration of the retainer in the first direction to selectively release the retention switch and to thereby permit the at least one energy managing device to be displaced in the first direction.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: March 4, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Ian Brewster Hall, Brian Robert Spahn, Richard Ruthinowski, Parakrama V. Weerappuli, Kevin Siasoco
  • Patent number: 8371425
    Abstract: A dynamic energy management restraint anchor device interfaces with a child seat in a vehicle, engaging common child seat attachment clip features. A device restraint anchor is operable to dynamically extract and permit distortion of load bearing deformable member(s) in order to manage the displacement of, and load transferred through, an anchor connected to a child seat. The device may be further operable to limit or prevent restraint anchor displacement and the distortion of said deformable member(s) under quasi-static load conditions in order to meet motor vehicle static load/displacement anchorage performance requirements applicable to certain anchors. Anchor retraction capability and various interlocking configurations for securing the position of an anchor, before or after having extracted, may be incorporated relative to the energy management device interfacing with both a vehicle and a child seat. An indicator may further be provided to identify the functional state of the restraint device.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: February 12, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Richard Ruthinowski, Ian Brewster Hall, Parakrama V. Weerappuli, Brian Robert Spahn, Kevin Siasoco
  • Publication number: 20120126597
    Abstract: An inertial lock system for use with an anchorage system for at least one vehicle child seat, the inertial lock system. The inertial lock system includes a retainer; an anchor movably connected to the retainer; at least one energy managing component connected between the retainer and the anchor biasing the anchor in a first direction capable of managing energy transmitted between the anchor and the retainer when the anchor is displaced in the direction opposite the first direction; a retention switch component selectively engageable with the anchor to limit the movement of the anchor in the first direction; and an inertial switch selectively operable in response to a predetermined deceleration of the retainer in the first direction to selectively release the retention switch and to thereby permit the at least one energy managing device to be displaced in the first direction.
    Type: Application
    Filed: November 24, 2010
    Publication date: May 24, 2012
    Inventors: Ian B. Hall, Brian R. Spahn, Richard Ruthinowski, Parakrama V. Weerappuli, Kevin Siasoco
  • Publication number: 20120126591
    Abstract: An energy management load limiting vehicle seat member or construction is shown with collision energy absorbing and anti-submarining features.
    Type: Application
    Filed: November 24, 2010
    Publication date: May 24, 2012
    Inventors: Richard Ruthinowski, Ian B. Hall, Parakrama V. Weerappuli, Brian R. Spahn, Kevin Siasoco