Fluid-tight closure apparatus

Details Fluid-tight closure apparatus Fluid-tight closure apparatus

1978-10-20

1980-12-16

Smith, Robert I.

Receptacles

Closures

With seal means biased by internal pressure

220328, 277190, B65D 5304, B65D 3908

Patent

active

042391245

ABSTRACT:
A fluid-tight closure apparatus for providing a fluid-tight seal between the inner peripheral surface of the cylindrical bore in an enclosure receiving therein a high-pressure fluid and the outer peripheral surface of an end closure wall held in the cylindrical bore. The apparatus has a pressurizing ring fitted around the outer peripheral surface at the inner end portion of the end closure wall for a small axial displacement. The pressurizing ring is adapted to derive the required sealing pressure from the internal fluid pressure in the enclosure. The apparatus further has a seal ring disposed between the pressurizing ring and the inner peripheral surface of the cylindrical bore and/or between the pressurizing ring and the end closure wall, and a bolt screwed through the end wall member into the pressurizing ring for imparing an initial sealing surface pressure to sealing areas, through the axial displacement of the pressurizing ring toward the end closure wall.

REFERENCES:
patent: 2459721 (1949-01-01), Poltorak
patent: 3379332 (1968-04-01), Anderson
patent: 3430801 (1969-03-01), Homrig
patent: 3702193 (1972-11-01), Flegel et al.

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