Back-up clamp

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United States of America Patent

PATENT NO 6398100
SERIAL NO

09560747

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Abstract

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A back-up clamp suitable for backing up a weld to be formed between adjacent pipe lengths in a pipeline, the clamp having a rigid clamp body, at least one set of clamping members mounted upon the clamp body, a set of back-up shoes mounted upon the clamp body, the set of clamping members and the set of back-up shoes being movable relative to the body, movement of the set of clamping members and the set of back-up shoes being controlled by fluid pressure applied to at least one location of the clamp, the clamp having a number of conduits adapted to deliver pressurised fluid to the location(s), all of each conduit being located within the body. The invention permits the provision of a back-up clamp which requires no flexible or external fluid hoses, and permits the manufacture of a back-up clamp suitable for use with small-diameter pipelines.

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Patent Owner(s)

Patent OwnerAddress
R S BROOKHOUSE ENGINEERING (EVESHAM) LIMITEDWATERLOO INDUSTRIAL ESTATE WATERLOO ROAD BIDFORD-ON-AVON WARWICKSHIRE B50 4JN

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Drewnicki, Zdzislaw Leon 115 Knights Lane, Tiddington, Stratford. u. A., CV37 7BZ, GB 2 11
Eastham, John Simon 2 Stretton Close, Stretton on Fosse, Moreton in Marsh, GL56 9QZ, GB 2 11
Radbourne, Kevin Alan Cinquefoil, Bidford Road, Ardens Grafton, B49 6DP, GB 2 11
Vickery, Keith 122 Evesham Road, Stratford upon Avon, CV37 9BH, GB 3 38

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