Title:
A HELICAL FORMATION FOR A CONDUIT
Document Type and Number:
WIPO Patent Application WO2004047908
Kind Code:
A3
Abstract:
A helical formation for a conduit (1). The helical formation includes an elongate member (4) defining at least a portion of a helix, the elongate member (4) comprising an inwardly extending portion (6, 7). The inwardly extending portion (6, 7) extends along the length of the elongate member (4) and extends inwardly from the internal side walls of the conduit (1) for a distance equal to between 10 % and 80 % of the distance (r) from the longitudinal axis (3) of the conduit (1) to an internal side wall (2).
Inventors:
HOUSTON JOHN GRAEME (GB)
HOOD ROBERT GORDON (GB)
STONEBRIDGE PETER A (GB)
HOOD ROBERT GORDON (GB)
STONEBRIDGE PETER A (GB)
Application Number:
PCT/GB2003/004917
Publication Date:
December 23, 2004
Filing Date:
November 13, 2003
Export Citation:
Assignee:
TAYSIDE FLOW TECHNOLOGIES LTD (GB)
HOUSTON JOHN GRAEME (GB)
HOOD ROBERT GORDON (GB)
STONEBRIDGE PETER A (GB)
HOUSTON JOHN GRAEME (GB)
HOOD ROBERT GORDON (GB)
STONEBRIDGE PETER A (GB)
International Classes:
A61F2/06; A61M39/00; A61M39/08; F15D1/06; A61F2/07; A61F2/88; A61F2/90; (IPC1-7): A61F2/06; F15D1/06
Domestic Patent References:
WO2003103540A1 | 2003-12-18 |
Foreign References:
DE597472C | 1936-01-18 | |||
AT134543B | 1933-08-25 | |||
DE2510169A1 | 1976-09-16 | |||
EP1254645A1 | 2002-11-06 | |||
US20020179166A1 | 2002-12-05 | |||
EP1314406A2 | 2003-05-28 | |||
EP1312321A2 | 2003-05-21 |
Download PDF: