Closure apparatus for pipes and vessels

Details Closure apparatus for pipes and vessels Closure apparatus for pipes and vessels

1989-11-02

1991-09-17

Arola, Dave W.

Pipe joints or couplings

Packed

Flanged pipe

285420, 138 89, F16L 1706

Patent

active

050488767

ABSTRACT:
A closure apparatus for pipes, vessels and the like includes a ring member which extends around the perimeter of a pair of flanges. The ring member includes a plurality of rollers that engage the nonmating sides of the flanges and impart a closing force thereon. The ring is rotatable between a locked position wherein the flanges are pressurized to an unlocked position wherein the rollers align with slots extending around the periphery of one or both of the flanges, whereby the flanges can be pulled apart.

REFERENCES:
patent: 48038 (1865-06-01), Barnard
patent: 771388 (1904-10-01), Nusbaum
patent: 2689753 (1954-09-01), Wechsler
patent: 3058761 (1962-10-01), Christophersen
patent: 4288116 (1981-09-01), Schllenger

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