Back-up clamp
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 4, 2002
Issued Date -
N/A
app pub date -
Apr 28, 2000
filing date -
Feb 12, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
First Claim
Other Claims data not available
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 7 Citation Count
- B23K Class
- 4.54 % this patent is cited more than
- 23 Age