Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,...
Patent
1994-05-11
1996-03-05
Taylor, Dennis L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
138114, 1662411, 405184, 24339, F16L 100, F16L 1024, F16L 106
Patent
active
054961343
ABSTRACT:
Sliding skid ring for a pipe member, to be laid underground inside a jacket pipe, consisting of at least two segments, connected to each other by tightening elements, held under pretension against the pipe member in a nonpositive manner, and carry outward-pointing sliding skids. The sliding skid ring is comprised of several identical segments. Each segment is provided on one side with a radial section in the form of one of more tabs and, on the opposite side, with another radial section in the form of a closure part having one or more insertion slots designed to accept the tabs. The tabs of an adjacent segment is engaged in the slots. The tabs have a plurality of parallel and equidistant grooves, which are at a slant of a few degrees to the axial direction. The closure part has, in the engagement area of the tabs, an axially oriented guide grooves for a tongue-like wedge, which is inserted therein. The wedge has grooves, which are oriented to correspond with the grooves in the tabs and are in engagement therewith. The wedge is driven axially into the guide grooves until the two adjacent segments are tightened together and the sliding skid ring is thus held pressed against the pipe member.
REFERENCES:
patent: 3754780 (1973-08-01), Pogonowski
patent: 3894780 (1975-07-01), Broussard
patent: 4147383 (1979-04-01), Schluter
patent: 4165111 (1979-08-01), Zanichelli
patent: 4896701 (1990-01-01), Young
patent: 5018260 (1991-05-01), Ziu
Renz Jr. Eugene E.
Taylor Dennis L.
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