Title:
PRESSURE RESISTANT STRANDS
Document Type and Number:
WIPO Patent Application WO/2014/207437
Kind Code:
A3
Abstract:
An open spiral strand (1) formed of a plurality of layers, each layer (25, 26, 27) being formed of a plurality of individual wires (33, 34). At least one inner layer (25) is adapted to have a greater resistance to radial forces than other layers (26, 27), such that the inner layer (25) is better able to resist the higher radial forces that are generated within the inner layers (25, 26, 27), the strand (1) has seven or more layers provided radially outwardly of the adapted inner layer (25). The inner layer (25) is adapted by including shaped wires (34) that provide contact surfaces between layers (25, 26, 27) that have a greater surface area.
Inventors:
WALTON JOHN MAWSON (GB)
Application Number:
PCT/GB2014/051884
Publication Date:
March 26, 2015
Filing Date:
June 19, 2014
Export Citation:
Assignee:
BRIDON LTD (GB)
International Classes:
D07B1/08
Foreign References:
| DE1685831A1 | 1971-04-29 | |||
| DE91634C | ||||
| CN101956337A | 2011-01-26 | |||
| JPS6075694A | 1985-04-30 | |||
| FR2169686A5 | 1973-09-07 | |||
| GB560868A | 1944-04-25 | |||
| GB2324542A | 1998-10-28 | |||
| DE19504452A1 | 1996-01-25 | |||
| DE1625864A1 | 1970-02-05 |
Attorney, Agent or Firm:
MARKS & CLERK LLP (Manchester, Greater Manchester M1 4HD, GB)
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