Vessel lock down system

Details Vessel lock down system Vessel lock down system

1997-04-29

1999-07-06

Cronin, Stephen K.

Receptacles

Closures

With closure opening arrangements for means

220291, 220833, 49149, 49324, B65D 4326, B65D 4106

Patent

active

059187565

ABSTRACT:
A pressure vessel according to the present invention includes a housing with a cylindrical upper portion having a plurality of radially extending catch members on its circumference and a lid for mating with the housing with a cylindrical side edge having a plurality of hook-shaped retaining members spaced about its circumference to correspond with the catch members. A control system operates a lift to lower the lid onto the housing. A drive cylinder connected between the lid and the housing is then enabled to rotate the lid relative to the housing about its central axis between a locked position and an unlocked position. Spacers mounted to the inner surfaces of the retaining members act as bearings, guiding the lid as it rotates. As the lid rotates toward its locked position, finger portions of the retaining members cam into underlocking engagement with the catch members to draw the lid onto the housing. The control system disables the vessel by operating the drive cylinder in the reverse direction and then operating the lift to lift the lid from the housing.

REFERENCES:
patent: 2583073 (1952-01-01), Ahlborn
patent: 3488883 (1970-01-01), Clements et al.
patent: 4102473 (1978-07-01), Draxler
patent: 4381879 (1983-05-01), Ehrenfels et al.
patent: 5143389 (1992-09-01), Jonkers

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