Coupling or jointing unit

Pipe joints or couplings – With fluid pressure seal – Swivel with flange in socket

Patent

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Details

285175, 285351, 285370, F16L 1702, F16L 1706

Patent

active

039360792

ABSTRACT:
A coupling unit insertable between a first and a second pipeline, flexible or hose pipe or the like. Said coupling unit allows relative movement between the pipelines and comprises an outer part or conduit member serving as a muff and attachable to the first pipeline. A suitably tubular shaped inner part or conduit member is attachable at its one end, attachable to the second pipeline and at its other end carries a first surface, which by coaction with a second surface inside the outer part can limit a separating movement of the parts. A sealing device is arranged to prevent the medium in the pipeline from leaking between the parts. The sealing device comprises first sealing means coming into action when the inner part at said surfaces is pressed towards the outer part at a given pressure in the medium. The sealing device further includes a second sealing means placed behind the first sealing means. Said second sealing means being arranged resiliently in the axial direction of the parts for momentary high pressures occurring in the medium and passing the first sealing means.

REFERENCES:
patent: 1163995 (1915-12-01), Frank
patent: 2305725 (1942-12-01), Meyer
patent: 2331615 (1943-10-01), Meyer
patent: 2395861 (1946-03-01), Fraser
patent: 3510155 (1970-05-01), Jacobus

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