Pipe joints or couplings – With fluid pressure seal – With separate – encased pipe-gripping means
Patent
1984-03-15
1986-06-10
Arola, Dave W.
Pipe joints or couplings
With fluid pressure seal
With separate, encased pipe-gripping means
285167, 285223, 285263, F16L 2712
Patent
active
045939411
ABSTRACT:
This invention provides for an assembly of elements for conducting fluids where such fluids subject the interior of this assembly to a pressure greater than the pressure exerted on the exterior of the assembly by an ambient fluid. The assembly comprises a plurality of elements connected end-to-end by connecting means and at least one pair of such elements being connected by a flexible connector means. The flexible connector means includes a cylindrical housing that has a greater internal diameter than the external diameter of the elements that it is to connect, and is positioned such that these elements extend inwardly into said housing. A retainer means is employed at each end of the housing and it is adapted for retaining the elements in a fixed position relative to the housing and the flexible connector means. A pair of outer laminated assemblies formed of alternating layers of rigid and flexible material are positioned in the connector to accommodate tensile loads nest of the expected, and a pair of inner laminated assemblies are positioned to accommodate all compression loads and to effect part of the seal between the fluid pathway through the connector and the external environment. A sliding seal element forms the other part of the seal and is also adapted to accommodate the relatively large tensile faces.
REFERENCES:
patent: 918144 (1909-04-01), Greenlaw
patent: 4068864 (1978-01-01), Herbert et al.
patent: 4068868 (1978-01-01), Ohat
patent: 4076284 (1978-02-01), Herbert et al.
patent: 4173360 (1979-11-01), Bergman
patent: 4183556 (1980-01-01), Schwemmer
patent: 4482171 (1984-11-01), Campbell
Arola Dave W.
LTV Energy Products Company
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