Confining ring set suiting wider range of diameter of pipes

Details Confining ring set suiting wider range of diameter of pipes Confining ring set suiting wider range of diameter of pipes

1997-09-10

1999-05-04

Arola, Dave W.

Pipe joints or couplings

Serial,relatively movable portions

Serial diverse single flow path or line

285114, 285298, 285404, 285419, 285420, 403362, F16L 5500

Patent

active

058995064

ABSTRACT:
A confining ring set suiting wider range of diameters of pipes, wherein a "C" shaped confining ring is provided at three locations thereon with three screw holes equidistantly spaced with one another, each screw hole is provided with a screw therein pointing at the center of a chamber of the confining ring, the chamber is fitted therein with an external annulus which in turn is fitted therein with an inner annulus; the external and inner annuli have "C" shaped openings, an internally extended annular rib is provided on the top of the inner annulus, and an externally extended annular rib is provided on the top of the external annulus, the annular ribs are both provided with notches thereon to scatter stress, the confining ring set having the external and inner annuli can be used to confine pipes of a wider range of diameters, for the smaller pipes, three screws on ring set and effect of confining can thus be increased. The confining ring can further contract the external and inner annuli to transform the confining force in point contact mode into surface contact mode through the annuli, thus can effectively contract the smaller pipes, the range of diameter of pipes available for the confining.

REFERENCES:
patent: 2118067 (1938-05-01), Brown
patent: 2328381 (1943-08-01), Jaffe
patent: 2472307 (1949-06-01), Nagel
patent: 2702716 (1955-02-01), Basolo et al.
patent: 4819974 (1989-04-01), Zeidler

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