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Patent Searching and Data


Title:
INTERNAL JACKET LEG CUTTER AND METHOD
Document Type and Number:
WIPO Patent Application WO/2010/083187
Kind Code:
A3
Abstract:
An internal caisson/jacket leg cutter and method provides a frame having upper and lower end portions. The upper end portion has rigging that enables the frame to be lifted. Extensible arms are movably supported upon the frame. The arms extend and retract along generally radially extending lines. Extension of the arms enables them to contact the inside surface of a caisson/jacket leg and thus center and anchor the frame within the caisson/jacket leg interior. A cutting mechanism at the lower end portion of the frame includes one or more rotary cutters or milling devices that cut the caisson/jacket leg wall as these cutters traverse an arc shaped path, tracking the caisson/jacket leg wall.

Inventors:
CLARK II GALEN R (US)
MARTIN MICHAEL T (US)
SIEMS GARY L (US)
Application Number:
PCT/US2010/020856
Publication Date:
November 18, 2010
Filing Date:
January 13, 2010
Export Citation:
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Assignee:
CLARK II GALEN R (US)
MARTIN MICHAEL T (US)
SIEMS GARY L (US)
TETRA TECH (US)
International Classes:
E02D9/04; E02B17/00
Foreign References:
US6354765B22002-03-12
US4721416A1988-01-26
US4867611A1989-09-19
US3987636A1976-10-26
US4549580A1985-10-29
Other References:
See also references of EP 2379812A4
Attorney, Agent or Firm:
NORTH, Brett, A. et al. (Smith Nehrbass & North, L.L.C.,3838 N. Causeway Blvd., Suite 329, Metairie Louisiana, US)
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