Patents by Inventor Derek N. Johnson

Derek N. Johnson 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: 7281859
    Abstract: A method for assembling an optical fiber connector comprising providing a one piece housing comprising a tailpiece and a body defining a forward first end, a rearward second end and a passage extending longitudinally therebetween, inserting a spring element into the passage through the forward first end, inserting a subassembly comprising a ferrule, a ferrule holder and a lead-in tube into the passage through the forward first end, maintaining the spring within the passage between a shoulder defined by the one piece housing and a flange of the ferrule holder, and inserting a subassembly retainer into the passage through the forward first end.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: October 16, 2007
    Assignee: Corning Cable Systems LLC
    Inventors: Ronald L. Mudd, Derek N. Johnson
  • Patent number: 7264401
    Abstract: A panel-mountable fiber optic splice is provided for interconnecting first and second optical fibers through an opening in a panel, bulkhead, wall or the like. The optical fiber splice includes a housing configured to be inserted into the opening in the panel, a splice holder disposed within an internal passageway defined by the housing, first and second splice members disposed within an internal cavity defined by the splice holder, and a cam member disposed about the splice holder for actuating the first and second splice members between a first, unactuated position for inserting the first and second optical fibers between the splice members and a second, actuated position for securing the first and second optical fibers between the splice members.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: September 4, 2007
    Assignee: Corning Cable Systems LLC
    Inventor: Derek N. Johnson
  • Patent number: 7104702
    Abstract: A field installable fiber optic connector includes a housing, a spring element seat and a ferrule holder that is inserted from the rearward end of the housing. A spring element inserted into the front of the housing abuts the spring element seat. A spring element retainer attached to the ferrule holder abuts the forward portion of the spring element to compress the spring element and bias the ferrule holder forward. An optical fiber stub disposed between opposed splice members in an aligning groove terminates intermediate the ends of the splice members. An optical fiber is inserted between the splice members and guided by the groove into abutment with the end of the optical fiber stub. A cam disposed about the ferrule holder is movable to facilitate insertion of the optical fiber and to clamp the optical fiber and the optical fiber stub between the splice members.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: September 12, 2006
    Assignee: Corning Cable Systems LLC
    Inventors: Brandon A. Barnes, Scott E. Semmler, Derek N. Johnson