Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1990-11-19
1992-05-19
Shoap, Allan N.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
166 88, 166 89, 166387, 277117, 277119, 277124, 285142, 285147, 285341, F16J 1506, F16L 1906, E21B 3304
Patent
active
051141582
ABSTRACT:
An improved packing assembly is provided for forming a metal-to-metal sealing engagement between an outer cylindrical surface and an inner cylindrical surface within downhole or surface hydrocarbon recovery equipment having an axially extending flow path therein. The packing assembly includes an outer seal ring and a inner seal ring with upper and lower tapered surfaces, an upper energizing ring and a lower energizing ring each having tapered surfaces for sliding engagement with a tapered surface of the seal rings, and an interconnection member for limiting axial movement of the energizing rings. Projections on each of the seals rings are preferably provided for obtaining substantially line contact sealing engagement with the respective cylindrical surface, and each of these projections is spaced radially opposite and at substantially the same axial depth as a tapered surface on a respective upper or lower energizing ring, such that each of the projections is forced radially into sealing engagement with the corresponding cylindrical surface by a substantially equal force. According to the method of the present invention, the entire assembly is formed and may be lowered downhole to minimize installation costs, and the energizing rings thereafter moved axially together by the application of mechanical or hydraulic force to set the sealing assembly.
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Brochure entitled "W-K-M HSC-1 Hydraulic Set Connector"-4-page brochure by Cooper Industries (1989).
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