Movable or removable closures – With means mounting closure for swinging – With latch or lock
Patent
1977-07-11
1978-10-24
Downey, Kenneth
Movable or removable closures
With means mounting closure for swinging
With latch or lock
220325, 292 6, E05C 906
Patent
active
041213831
ABSTRACT:
A mechanism for securing a dome-shaped door in an opening of a vessel to effect sealing with respect to pressure at either side of the door, the convex side of the door being directed towards the exterior of the vessel and the mechanism being disposed at the concave side of the door and including locking members radially movable into a door locking position and a spider assembly connect to move the locking members and mounted for movement along a shaft carried by the door between a position in which the assembly is adjacent the door and the locking members are retracted from the door locking position and a position in which the assembly is spaced from the concave side of the door and the locking members are in the door locking position, whereby the mechanism can be retained substantially within the recess defined by the door at its concave side.
REFERENCES:
patent: 3209663 (1965-10-01), Baler
patent: 3261627 (1966-07-01), Wallden
patent: 3435794 (1969-04-01), Pechacek
Holmes Billy H.
Schwartz John B.
Downey Kenneth
Perry Oceanographics, Inc.
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