Pipeline patch trolley
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 30, 2003
Grant Date -
Oct 25, 2001
app pub date -
Jan 29, 2001
filing date -
Jan 28, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A vehicle for transporting and installing an annular patch in a pipeline having a curved inside surface. There is a tubular support member and an annular bladder mounted on the support member for forcing the patch against the inside of the pipeline when inflated. Pivoting wheel assemblies are mounted to the ends of the tubular support member so that the wheels extend normal to the curved inside surface of the pipeline. A ballast member is mounted between the wheel assemblies to maintain the vehicle in an upright orientation. Compressed air for inflating the bladder is supplied by hose to a fitting within the hollow interior of the tubular support. The wheel assemblies may be removable or inwardly pivotable so as to provide clearance for the patch to be slipped over the support and bladder.
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