Patents by Inventor Harrison Purvis

Harrison Purvis 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: 20060179731
    Abstract: A temporary railing for a boundary of a building floor may include a plurality of temporary cable supports spaced along the boundary of the building floor, a plurality of vertically spaced apart cables carried by the temporary cable supports, and an access opening assembly for permitting temporary establishment of an access opening through each of the cables. The access opening assembly may include a cable jack selectively coupled in line with a respective cable and movable between a released position and a closed position, and at least one cable clamp selectively clamped to the respective cable to maintain tension beyond the access opening when the cable jack is in the released position.
    Type: Application
    Filed: November 2, 2005
    Publication date: August 17, 2006
    Inventor: Harrison Purvis
  • Publication number: 20060145131
    Abstract: A guardrail system includes a plurality of posts and at least one rail member detachably connected to and extending between the plurality of posts. Each of the plurality of posts includes a first post member, and a second post member that slidably engages the first post member. The second post member includes a first cable connector connected to a lower portion thereof, and a second cable connector connected to an upper portion thereof and including a pair of inverted and opposing J-shaped second cable connector members.
    Type: Application
    Filed: January 3, 2006
    Publication date: July 6, 2006
    Inventor: Harrison Purvis
  • Publication number: 20060137259
    Abstract: A temporary railing may include a plurality of cable temporary supports spaced along the boundary of the building floor, and a plurality of vertically spaced apart cables carried by the temporary cable supports to extend along the boundary of the building floor. The temporary cable supports may include at least one dual-use corner pulley temporarily coupled to a respective vertical building member. The dual-use corner pulley may include a mounting bracket to be temporarily coupled to the respective vertical building member on either an inside corner or outside corner thereof, a yoke including a proximal end connected to the mounting bracket, and a wheel removably carried by the yoke and having an inner surface adjacent the proximal end of the yoke for rotatably supporting a respective cable in a tensioned condition if the mounting bracket is connected to the inside corner.
    Type: Application
    Filed: November 2, 2005
    Publication date: June 29, 2006
    Inventor: Harrison Purvis
  • Publication number: 20060118359
    Abstract: A temporary railing for a boundary of the building floor may include a plurality of temporary cable supports spaced along the boundary of the building floor, a plurality of vertically spaced apart cables carried by the temporary cable supports, and a portable cable tensioning apparatus coupled to the cables to maintain a desired tension therein and to take-up slack therein to maintain the desired tension. For example, the portable cable tensioning apparatus may include a portable frame, and a weight load movably carried by the portable frame and coupled to the cables.
    Type: Application
    Filed: November 2, 2005
    Publication date: June 8, 2006
    Inventor: Harrison Purvis