Patents by Inventor Hariharan K. Sankaranarayanan

Hariharan K. Sankaranarayanan 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: 6736457
    Abstract: Continuous seat adjustment apparatus is used in conjunction with a seating device including a track assembly having an inner track and an outer track longitudinally movable on the inner track. The apparatus includes a pair of opposed jaws mounted on the outer track for pivotal movement between first and second orientations. Each of the jaws defines an opening with the inner track longitudinally extending therethrough. The jaws frictionally engage the inner track in the first orientation to substantially prevent longitudinal movement along the inner track and the jaws release the inner track in the second orientation to allow continuous longitudinal movement along the inner track. A spring device is affixed to the pair of opposed jaws to provide a bias on the jaws tending to move the jaws into the first orientation and an adjustment member is provided for moving the jaws against the spring bias from the first orientation to the second orientation.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: May 18, 2004
    Assignee: Elio Engineering Inc.
    Inventors: Paul A. Elio, Hariharan K. Sankaranarayanan, Robert E. Glaspie
  • Publication number: 20030227207
    Abstract: Continuous seat adjustment apparatus is used in conjunction with a seating device including a track assembly having an inner track and an outer track longitudinally movable on the inner track. The apparatus includes a pair of opposed jaws mounted on the outer track for pivotal movement between first and second orientations. Each of the jaws defines an opening with the inner track longitudinally extending therethrough. The jaws frictionally engage the inner track in the first orientation to substantially prevent longitudinal movement along the inner track and the jaws release the inner track in the second orientation to allow continuous longitudinal movement along the inner track. A spring device is affixed to the pair of opposed jaws to provide a bias on the jaws tending to move the jaws into the first orientation and an adjustment member is provided for moving the jaws against the spring bias from the first orientation to the second orientation.
    Type: Application
    Filed: June 7, 2002
    Publication date: December 11, 2003
    Applicant: Elio Engineering, Inc.
    Inventors: Paul A. Elio, Hariharan K. Sankaranarayanan, Robert E. Glaspie
  • Patent number: 6561587
    Abstract: Variable clutching seat recliner apparatus includes a drum coupled to a seat back, a band wrapped about the drum inhibiting rotation thereof, a tightening mechanism coupled to opposed ends of the band such that a force applied to the seat back in either of two opposing directions produces a tension in the band adjacent either end and a corresponding loosening of the band adjacent the other end. The tightening mechanism includes a lever pivotable about a fixed pivot point to convert a portion of the tension to reduce the loosening, and a variable control mechanism positioned proximate the lever for limiting pivotal movement of the lever.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: May 13, 2003
    Assignee: Elio Engineering, Inc.
    Inventors: Paul A. Elio, Robert E. Glaspie, Hariharan K. Sankaranarayanan
  • Patent number: 6527342
    Abstract: A recliner mechanism includes a cylindrical element attached to a back portion and a conically shaped element attached to a seat portion. The cylindrical element has an axially extending central opening formed therein defined by a conically tapered inner surface, and the conically shaped element has an outer surface receivable within the central opening. The conically shaped element is movable in an axially inward direction to a locked orientation with the inner surface of the cylindrical element engaging the outer surface of the conically shaped element to inhibiting relative pivotal movement of the back portion and the seat portion. The conically shaped element is also movable in an axially outward direction to an unlocked orientation with the inner surface of the cylindrical element disengaged from the outer surface of the conically shaped element to permitting relative pivotal movement of the back portion and the seat portion.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: March 4, 2003
    Assignee: Elio Engineering Inc.
    Inventors: Robert E. Glaspie, Paul A. Elio, Hariharan K. Sankaranarayanan
  • Patent number: 6375263
    Abstract: A self-tightening mechanism mounted on a seat having a back portion. The self-tightening mechanism including a drum coupled to the back portion, a band wrapped about the drum inhibiting rotation thereof and having a first end and a second end. A tightening mechanism coupled to the first end and the second end such that a force applied to the back portion in either of two opposing directions produces a tension in the band adjacent either one of the first end and the second end and a corresponding loosening of the band adjacent the other end. The tightening mechanism including a lever pivotable about a fixed pivot point to convert a portion of the tension to reduce the loosening.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: April 23, 2002
    Assignee: Elio Engineering Inc.
    Inventors: Paul A. Elio, Robert E. Glaspie, Hariharan K. Sankaranarayanan
  • Publication number: 20020041120
    Abstract: A recliner mechanism includes a cylindrical element attached to a back portion and a conically shaped element attached to a seat portion. The cylindrical element has an axially extending central opening formed therein defined by a conically tapered inner surface, and the conically shaped element has an outer surface receivable within the central opening. The conically shaped element is movable in an axially inward direction to a locked orientation with the inner surface of the cylindrical element engaging the outer surface of the conically shaped element to inhibiting relative pivotal movement of the back portion and the seat portion. The conically shaped element is also movable in an axially outward direction to an unlocked orientation with the inner surface of the cylindrical element disengaged from the outer surface of the conically shaped element to permitting relative pivotal movement of the back portion and the seat portion.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 11, 2002
    Inventors: Robert E. Glaspie, Paul A. Elio, Hariharan K. Sankaranarayanan
  • Publication number: 20010048238
    Abstract: Variable clutching seat recliner apparatus includes a drum coupled to a seat back, a band wrapped about the drum inhibiting rotation thereof, a tightening mechanism coupled to opposed ends of the band such that a force applied to the seat back in either of two opposing directions produces a tension in the band adjacent either end and a corresponding loosening of the band adjacent the other end. The tightening mechanism includes a lever pivotable about a fixed pivot point to convert a portion of the tension to reduce the loosening, and a variable control mechanism positioned proximate the lever for limiting pivotal movement of the lever.
    Type: Application
    Filed: May 29, 2001
    Publication date: December 6, 2001
    Inventors: Paul A. Elio, Robert E. Glaspie, Hariharan K. Sankaranarayanan