Clamp having a core layer of rigid polyurethane
AssigneeBalmoral Comtec Limited
InventorsFraser Milne, Aneel Gill, Ewan George Lawrence Reid
Life of this patent
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Abstract
A creep resistant material comprises a core layer (12) of rigid polyurethane with a first tensile reinforcement layer (17) applied on one surface and a second tensile reinforcement layer (17) applied on the other opposed surface of the core layer, the entire respective first and second tensile reinforcement layers being in contact with the first and second surface of the core layer of the material.
Claims22
A clamp for mounting around a tubular member, said clamp comprising one or more segments adapted to surround the tubular member, each segment incorporating a creep resistant material, the creep resistant material comprising a core layer of rigid polyurethane with a first tensile reinforcement layer applied on one surface and a second tensile reinforcement layer applied on an opposed second surface of the core layer, the entire respective first and second tensile reinforcement layers being in contact with the respective first and second surfaces of the core layer of the material.
A method of forming components of a clamp for mounting around a tubular member, the method comprising steps of:
- providing a trough mould shaped to form multiple segments of the clamp,
- partly filling the mould with a polyurethane and allowing the polyurethane to cure in the mould to form a cured rigid polyurethane material,
- removing the cured rigid polyurethane material from the mould and cutting through individual segments to form separate polyurethane segments, and
- applying a first tensile reinforcement layer to a first surface of each of the polyurethane segments and applying a second tensile reinforcement layer to a second surface of each of the polyurethane segments.
Dependencies are inferred from the claim text.