Patents by Inventor Rodney J. Davey

Rodney J. Davey 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).

  • Method and apparatus for blowing an optical fibre member
    Patent number: 5065928
    Abstract: A method is described for introducing one or more optical fibre members (1) into a tubular passageway (2). The method involves passing a current of fluid, preferably air, into and through a venturi (6) the downstream side of which communicates with the passageway (2). The optical fibre member (1) is introduced into the venturi (6) via a hypodermic tube (7) and then into the passageway (2). Apparatus for carrying out the method are described.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: November 19, 1991
    Assignees: BICC plc., Corning Limited
    Inventors: Rodney J. Davey, Graham R. Handley, Alfred J. Ward-Smith
  • Propellable optical fiber cable
    Patent number: 4976519
    Abstract: An optical fibre cable comprises an inner sheath containing at least one optical fibre member, and an outer sheath containing the inner sheath. The inner sheath is of a material which is soft and has a low modulus of elasticity. The outer sheath of a material having bulk properties, such as density and stiffness, and surface properties, such as surface texture and friction such that the cable can be propelled along a duct by a flow of air travelling along the duct. An intermediate sheath may be provided between the inner and outer sheaths.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: December 11, 1990
    Assignees: BICC plc, Corning Limited
    Inventors: Rodney J. Davey, Alan A. Sadler
  • Propellable optical fiber cables
    Patent number: 4930860
    Abstract: An optical fibre cable comprises a plurality of optical fibre structures each of which comprises an optical fibre surrounded by at least one sheath layer. The optical fibre structures are separably held together side-by-side. The optical fibre cable is propellable along a tubular pathway by fluid drag of a gaseous medium passing over the cable, and each of the individual optical fibre structures is preferably also so propellable when the said structures are separated from one another.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: June 5, 1990
    Assignees: BICC plc, Corning Limited
    Inventors: John A. Tansey, Rodney J. Davey, Alan A. Sadler