초록 ▼

A conduit-connector coupling structure, otherwise sometimes known as a clamp-type connector, incorporates plural clamp segments operating to cam together flange members producing the coupling. Clamp segments are employed with connecting attachment means so as to draw together the flange members empl

A conduit-connector coupling structure, otherwise sometimes known as a clamp-type connector, incorporates plural clamp segments operating to cam together flange members producing the coupling. Clamp segments are employed with connecting attachment means so as to draw together the flange members employed upon the tightening down of the clamp segments relative to each other. The forward flange portions of each of the flange members are provided with recesses mutually accommodating the insertion of a metallic sealing ring. When the flange members are drawn together the sealing ring is held in radial compression. The ring itself is oppositely tapered at opposite sides and includes at least one and conceiveably multiple non-metallic seals hereinafter referred to as softseals, which are mounted on a primary ring member. The primary ring member thus includes suitable recesses for accommodating such softseals at its opposite recessed sides. The ring member itself will be metallic and at least portions of its upper surfaces will serve as to control surfaces for limiting compression of the softseals to predetermined amounts. The fluid-coupling seal structure in this invention is intended to accommodate structures where sealing pressures are relatively low, i.e., do not exceed 10,000 psi.

대표청구항 ▼

In combination, a pair of flange members having mutually-facing faces each provided with mutually corresponding annular recesses forming inner, annular, inclined, uniform, seal-seat surfaces; a fluid-seal sealing ring disposed in said recesses, said sealing ring comprising a metal sealing ring membe

In combination, a pair of flange members having mutually-facing faces each provided with mutually corresponding annular recesses forming inner, annular, inclined, uniform, seal-seat surfaces; a fluid-seal sealing ring disposed in said recesses, said sealing ring comprising a metal sealing ring member having oppositely tapered, opposite annular sides, each side having an outer, uniformly tapered, annular, essentially fixed control surface and being provided with at least one recess contiguous with such control surface, said sealing ring also having plural, compressible, resilient, non-metallic softseals fit-seated against relative lateral movement in respective ones of said recesses and, when non-compressed by said flange members, extending above said control surfaces, said softseals engaging respective ones of said seal-seat surfaces, and means for advancing said flange members toward each other to compression-load said sealing ring in radial directions perpendicular to its central axis, whereby to pressure-seat said ring at said softseals against said seal-seat surfaces and thereby provide fluid seals thereat while simultaneously bringing said seal-seat surfaces toward said control surfaces which restrict compression of said softseals to their elastic limits.