Pipe joints or couplings – Packed – Flanged pipe
Patent
1998-06-12
2000-05-23
Arola, Dave W.
Pipe joints or couplings
Packed
Flanged pipe
285413, 285415, F16L 23032
Patent
active
060657847
ABSTRACT:
A backup ring for a pipe joint restraint includes a continuous one piece ring member or opposed ring segments, both including multiple inside radii to provide a portion of the ring which may be secured to a pipe fitting and a portion of the ring which is adapted to provide clearance for reinforced areas of a pipe fitting, such as a fillet reinforcement at a branch portion of a tee fitting. The ring embodiments with multiple ring segments include opposed radially projecting ears with fastener receiving bores and radially projecting lugs adapted to provide for connecting the ring assembly to a second ring assembly or gland clamped to the pipe section which is to be restrained in connection with the pipe fitting to which the backup ring assembly is clamped. The circumferential extent of the ring segments is preferably less than 180.degree. to accommodate a range of pipe fitting diameters with a single size ring segment.
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Arola Dave W.
EBAA Iron, Inc.
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