Patents Assigned to Deep Tek Limited
  • Patent number: 7201365
    Abstract: Apparatus for use in handling a load where a load-bearing rope and a service cable are inter-wound as they are being paid out, having a wrapping device for wrapping a securing member around the service cable and the load-bearing rope, and to unwrap the securing member from the service cable and load-bearing rope as either of them is recovered. The securing member is wound around the service cable and the hoist rope, to hold the service cable relative to the load-bearing rope and to reduce the extent of creeping of the service cable down the load-bearing rope. The securing member can be planar, in the form of a strip, tape or ribbon, or can have a circular cross-section, in the form of a rope. In preferred embodiments, the securing member is resilient and is applied to the rope in tension.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: April 10, 2007
    Assignee: Deep Tek Limited
    Inventor: Alexander Charles Crawford
  • Publication number: 20060151763
    Abstract: Apparatus for use in handling a load where a load-bearing rope and a service cable are inter-wound as they are being paid out, having a wrapping device for wrapping a securing member around the service cable and the load-bearing rope, and to unwrap the securing member from the service cable and load-bearing rope as either of them is recovered. The securing member is wound around the service cable and the hoist rope, to hold the service cable relative to the load-bearing rope and to reduce the extent of creeping of the service cable down the load-bearing rope. The securing member can be planar, in the form of a strip, tape or ribbon, or can have a circular cross-section, in the form of a rope. In preferred embodiments, the securing member is resilient and is applied to the rope in tension.
    Type: Application
    Filed: October 7, 2003
    Publication date: July 13, 2006
    Applicant: Deep Tek Limited
    Inventor: Alexander Crawford
  • Patent number: 6712336
    Abstract: An improvement to lifting devices where a service cable 1 and hoist rope 2 are wound around one another, wherein the load-bearing rope 2 is wound around the cable 1 that is paid off from a cable winch 13 so that when the wound cable and rope 2 leave the device, the higher tension on the rope pulls that into an axial configuration with the service cable 1 helically coiled around it.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: March 30, 2004
    Assignee: Deep Tek Limited
    Inventor: Alexander Charles Crawford
  • Patent number: 6698722
    Abstract: An apparatus and a method for use in handling a load includes a load-bearing rope, and a mechanism for paying out and recovering the rope. There is also a drum for holding a service cable with a length of the service cable extending from the drum. A wrapping device rotates the length of service cable around the rope as the rope is payed out to wrap the service cable around the rope, and to unwrap the service cable from the rope as the rope is recovered.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: March 2, 2004
    Assignee: Deep Tek Limited
    Inventor: Alexander Charles Crawford
  • Patent number: 6471188
    Abstract: Apparatus and a method for use in handling a load includes a load-bearing rope and a mechanism for paying out and recovering the rope. There is also a drum for holding a service cable with a length of the service cable extending from the drum. A wrapping device rotates the length of service cable around the rope as the rope is payed out to wrap the service cable around the rope, and to unwrap the service cable from the rope as the rope is recovered.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: October 29, 2002
    Assignee: Deep Tek Limited
    Inventor: Alexander Charles Crawford
  • Patent number: 6267356
    Abstract: Apparatus and a method for use in handling a load includes a load-bearing rope (1, 19), and a mechanism for paying out and recovering the rope (1, 19). There is also a drum (3, 12, 15, 16) for holding a service cable (2, 17) with a length of the service cable (2, 17) extending from the drum (3, 12, 15, 16). A wrapping device rotates the length of service cable (2, 17) around the rope (1, 19) as the rope (1, 19) is payed out to wrap the service cable (2, 17) around the rope (1, 19), and to unwrap the service cable (2, 17) from the rope (1, 19) as the rope is recovered.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: July 31, 2001
    Assignee: Deep Tek Limited
    Inventor: Alexander Charles Crawford