Tank hatch opening obstructing construction

Details Tank hatch opening obstructing construction Tank hatch opening obstructing construction

1985-05-10

1986-03-18

Hall, George T.

Receptacles

Closures

Having means for securing or retaining closure in its closed...

220254, 220375, 220324, B65D 4500

Patent

active

045763089

ABSTRACT:
An obstructing plate construction for a tank having an opening in a top wall thereof and a cover with a base plate having an opening aligned with the opening in the top wall, the obstructing plate construction including an adapter plate mounted between the base plate and the top wall, bolts permanently affixed to the adapter plate for receiving nuts at the underside of the top wall, an opening in the adapter plate aligned with the opening in the top wall and the opening in the base plate, a plurality of nut and bolt assemblies extending through the base plate, adapter plate and top wall for securing them in assembled relationship, an obstructing plate, and locking bolts for selectively securing the obstructing plate to the adapter plate in obstructing relationship to aligned openings in the base plate, adapter plate and top wall.

REFERENCES:
patent: 2360554 (1944-10-01), Englert
patent: 2499614 (1950-03-01), Thornhill
patent: 4378896 (1983-04-01), Begnaud

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