Patents Assigned to Winn & Coales International Limited
  • Patent number: 11846383
    Abstract: The present disclosure provides an anti-corrosive wrapping for a metal pipe (10) (or a metal pipe fitting). The wrapping has an innerwrap (14) including glass fibres which carries a viscoelastic thermoplastic corrosion protection material (13). The wrapping has an outerwrap (16) including glass fibres which is impregnated with an adhesive. The innerwrap (14) is wrappable around the metal pipe (10) with the viscoelastic thermoplastic corrosion protection material (13) carried by the innerwrap (14) engaging and covering an external surface of the metal pipe (10). The outerwrap (16) is wrapped around the innerwrap (13) and the adhesive impregnated in the outerwrap (16) penetrates the innerwrap (13) and thereby adheres the outerwrap (16) to the innerwrap (13).
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: December 19, 2023
    Assignee: WINN & COALES INTERNATIONAL LIMITED
    Inventors: Brian Robert Dunsterville, Stephen Michael Crawley
  • Patent number: 11346490
    Abstract: The present invention provides a metal pipe coated on at least a section of the metal pipe with a polyolefin coating system, wherein the system consists of the following layers: (a) optionally, a corrosion protective layer of a chromate, phosphate or other salt; (b) a polyolefin based adhesive, preferably in a thickness of 0.3-5 mm; (c) a PE or PP coating layer, preferably in a thickness of 1-10 mm; (d) optionally, an adhesion promoting layer between the polyolefin based adhesive and a PE or PP layer; wherein the polyolefin based adhesive contains an organic phase consisting of substantially saturated hydrocarbons, and wherein the adhesive contains amorphous polypropylene, ethylene-propylene copolymers or poly(iso)butylene (co)polymers, said adhesive being flowable when a pressure of 10 kgf/cm2 is applied, wherein the PE or PP coating is a continuous layer over the coated section, and wherein said polyolefin based adhesive adheres to both the metal pipe and to said PE or PP coating.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: May 31, 2022
    Assignees: WINN & COALES INTERNATIONAL LIMITED, BOREALIS AG
    Inventors: Edwin Welles, Leonard Van Beugen, Norbert Jansen
  • Publication number: 20220154870
    Abstract: The present invention provides a metal pipe coated on at least a section of the metal pipe with a polyolefin coating system, wherein the system consists of the following layers: (a) optionally, a corrosion protective layer of a chromate, phosphate or other salt; (b) a polyolefin based adhesive, preferably in a thickness of 0.3-5 mm; (c) a PE or PP coating layer, preferably in a thickness of 1-10 mm; (d) optionally, an adhesion promoting layer between the polyolefin based adhesive and a PE or PP layer; wherein the polyolefin based adhesive contains an organic phase consisting of substantially saturated hydrocarbons, and wherein the adhesive contains amorphous polypropylene, ethylene-propylene copolymers or poly(iso)butylene (co)polymers, said adhesive being flowable when a pressure of 10 kgf/cm2 is applied, wherein the PE or PP coating is a continuous layer over the coated section, and wherein said polyolefin based adhesive adheres to both the metal pipe and to said PE or PP coating.
    Type: Application
    Filed: February 3, 2022
    Publication date: May 19, 2022
    Applicants: WINN & COALES INTERNATIONAL LIMITED, BOREALIS AG
    Inventors: Edwin WELLES, Leonard VAN BEUGEN, Norbert JANSEN
  • Patent number: 11148257
    Abstract: A clamping tool (1) is disclosed suitable for securing underwater protective shields, jackets and covers. A system is also described comprising the clamping tool and a protective shield, jacket or cover. The clamping tool (1) comprises a clamp (2), a jaw attachment (12) and a plurality of locking bolts (46). The clamp (2) comprises a first claw (20), a second claw (22), and a pivot (3). The jaw attachment (12) comprises a first tube (40) connected to the first claw (20) and a second tube (42) connected to the second claw (22). The first tube (40) and the second tube (42) comprise a plurality of holes (44) for receiving the plurality of locking bolts (46) and the pivot (3) is configured to transform a rotational torque applied by a user into a clamping pressure of the jaw attachment (12).
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: October 19, 2021
    Assignee: Winn & Coales International Limited
    Inventor: Michael S. Bradley
  • Patent number: 5476576
    Abstract: A system for impressed current cathodic protection of a structure having a corrodible metal reinforcing member comprising: a) an electron source having a positive terminal and a negative terminal connected to said corrodible metal reinforcing member such that electrons can flow from said negative terminal to said reinforcing member; b) an anode proximate said structure connected to said positive terminal of said electron source; and c) a pliable conductive substrate substantially enveloping said anode and in intimate contact with at least a portion of said structure. The pliable conductive substrate used comprises a suspension of a conductive compound in a viscous liquid impregnated in a flexible support medium.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: December 19, 1995
    Assignees: Winn and Coales International Limited, Solomon Corrosion Consulting Services Pty. Ltd.
    Inventors: Isaac Solomon, Bob Phang