Disassembleable and reassembleable sealing device for pipelines,

Details Disassembleable and reassembleable sealing device for pipelines, Disassembleable and reassembleable sealing device for pipelines,

1986-12-29

1988-09-06

Kyle, Deborah L.

Induced nuclear reactions: processes, systems, and elements

Seal arrangements

For nozzle

138 89, G21C 1306

Patent

active

047692073

ABSTRACT:
A disassembleable and reassembleable sealing device for pipelines, includes a cylindrical sealing insert being insertable into a pipeline in a given direction, the sealing insert having a front cup part with a closed cross section and a rear ring part, as seen in the given insertion direction, the cup and ring parts being annular, coaxial and slideable into each other in axial direction of the sealing insert, the cup and ring parts having corresponding peripheral surfaces and ring shoulder surfaces at the outer periphery of the cup and ring parts defining at least one ring seat, at least one sealing ring inserted into the ring seat between the cup and ring parts, the sealing ring being bulged outward by deformation forces exerted on the sealing ring by the ring seat when the cup and ring parts slide toward each other, increasing the diameter of the sealing ring for pressing the sealing ring against the ring seat and forming a ring bead on the sealing ring resting against the inner periphery of the pipeline forming a seal, and an operating device being coupleable to and uncoupleable from the sealing insert for transporting, inserting and disassembling the sealing insert.

REFERENCES:
patent: 2870794 (1959-01-01), Thaxton
patent: 3537483 (1970-11-01), Teague, Jr.
patent: 3561490 (1971-02-01), Little
patent: 3842612 (1974-10-01), Arnold
patent: 3978678 (1976-09-01), Duncan et al.
patent: 4144909 (1979-03-01), Harrison
patent: 4312708 (1982-01-01), Leslie
patent: 4316487 (1982-02-01), Denoor et al.
patent: 4470946 (1984-09-01), Vassalotti et al.

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