Patents by Inventor Martin Vincent Davies

Martin Vincent Davies 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).

  • Installing an optical fibre cable in a duct
    Patent number: 7151878
    Abstract: The apparatus has a feed mechanism engageable with the optical fibre cable for feeding the cable toward the duct, a mechanism for directing a gaseous flow into the duct for propelling the optical fibre cable along the duct and a drying mechanism disposed upstream of the cable feed device for removing moisture that may be present on an exterior surface of the duct.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: December 19, 2006
    Assignee: Pirelli General Plc
    Inventors: Ralph Sutehall, Martin Vincent Davies
  • Optical fiber drop cables
    Patent number: 7106931
    Abstract: An optical fibre drop cable for suspension installation includes sheathing having a first portion containing a strengthening arrangement for supporting the cable in a suspension installation and a second portion that is separable from the first portion. The second sheathing portion contains a plurality of electrical conductors. The first sheathing portion defines at least one passage for optical fibers.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: September 12, 2006
    Assignee: Pirelli General Plc
    Inventors: Ralph Sutehall, Martin Vincent Davies
  • Installing an optical fibre cable in a duct
    Publication number: 20040156600
    Abstract: An apparatus for installing an optical fibre cable in a duct. The apparatus has feed means engageable with the optical fibre cable for feeding the cable toward the duct, means for directing a gaseous flow into the duct for propelling the optical fibre cable along the duct and drying means disposed upstream of the feed means for removing moisture that may be present on an exterior surface of the duct.
    Type: Application
    Filed: November 21, 2003
    Publication date: August 12, 2004
    Inventors: Ralph Sutehall, Martin Vincent Davies
  • Method of blowing cable into a duct
    Patent number: 6311953
    Abstract: In order to install an optical fiber cable 110 in a duct 112 a plurality of vents 130, 132, 134 spaced apart along the duct are operated such that during blowing any vent 130 upstream of the leading end 138 of the cable is closed and when there is at least one vent 132, 134 downstream of the cable leading end at least the downstream vent 132 closest to the cable leading end is open for venting gas from the duct. In this way the pressure decay and pressure gradient profiles are modified during installation to improve installation performance.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: November 6, 2001
    Assignee: Pirelli General plc
    Inventors: Ian Dewi Lang, Ralph Sutehall, Martin Vincent Davies, John Garth Lamb
  • Aerial cable and tension clamp assembly
    Patent number: 6085008
    Abstract: An assembly comprising a self supporting aerial cable and tension clamp means including gripping means for gripping the cable, the gripping means comprising at least one helically wound rod fitted over the cable's outer sheath, wherein ##EQU1## where C is the outer diameter of the cable, R is the diameter of the or each rod and W.sub.R is the outer diameter of the unstressed winding of the or each rod.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: July 4, 2000
    Assignee: Pirelli General plc
    Inventors: Ralph Sutehall, Sam Armitage, Martin Vincent Davies