Pipe joints or couplings – Clamp
Patent
1981-05-06
1983-12-06
Scanlan, Jr., Richard J.
Pipe joints or couplings
Clamp
285112, 285223, 285364, 285408, F16L 2500, F16L 1700, F16L 2710, F16L 2100
Patent
active
044189486
ABSTRACT:
This invention relates to a method for coupling or joining pipes and tubes wherein an elastic force stored in said elastic coupling perpetually exerts a force that maintains a leak-proof connection between two ends of the pipes or tubes. Said elastic coupling comprises a plurality of the segments of an elastic ring having a cross section of annulus with an opening on the inward side of said elastic ring and a clamping collar of annular geometry with a groove on the inward side of said clamping ring, in which groove said plurality of the elastic ring segments are disposed in a confined fashion. The rims of two matching flanges built on each end of two pipes or tubes to be connected are received by said plurality of the elastic ring segments through said openings of the elastic ring segments. When the clamping collar is clamped down onto the pipe or tube surfaces, the cross section of the elastic ring segments is forced to contract and, consequently, the opening on the cross section of the elastic ring segments becomes compressed, which action compresses said two flanges toward one another compressing a seal disposed intermediate said two flanges, which combination results in an elastically compressive coupling. When said plurality of the elastic ring segments are replaced with another plurality of the elastic ring segments having a cross section of Omega-shape, an elastically expansive coupling results. By using a combination of said two different elastic ring segments, one can construct an elastically expansive-compressive coupling for joining the pipes or tubes.
REFERENCES:
patent: 2424436 (1947-07-01), Crater
patent: 2457077 (1948-12-01), Woolsey
patent: 2548249 (1951-04-01), Woolsey
patent: 2778661 (1957-01-01), Leighton
patent: 3116078 (1963-12-01), Scherer
patent: 3476410 (1969-11-01), Pastva
Chapman Ronald R.
Lew Hyok S.
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