Anti-theft device for tank openings

Details Anti-theft device for tank openings Anti-theft device for tank openings

1990-07-29

1991-06-25

Moy, Joseph Man-Fu

Receptacles

Container attachment or adjunct

Filling member

B65D 5118

Patent

active

050259466

ABSTRACT:
The anti-theft device for use in a liquid storage tank having an opening in an upper wall of the tank for receiving and mounting an access fill pipe which receives therein a drop tube having an access port. The anti-theft device comprises a mounting ring; a plug; a truncated porous hollow cone having a larger upper end fixed to the mounting ring and a smaller lower end fixed to the plug which is disposed generally concentric with the elongate axis of the drop tube. The plug may also be provided with a shaped key-way opening to allow gauging of liquid contents of a storage tank with a gauge level stick. The mounting ring of the truncated porous hollow cone is attached to the drop tube within the access fill pipe at a point below the access port of the drop tube and above the upper wall of the storage tank. The key-way opening of the plug can be T-shaped, cross-shape, C-shape, or of a circular-shape.

REFERENCES:
patent: 1933486 (1933-10-01), Simmonds et al.
patent: 1976975 (1934-10-01), Williams
patent: 1984590 (1934-12-01), Maddin
patent: 2281448 (1942-04-01), Mathey
patent: 2313266 (1943-03-01), Roberts
patent: 3016162 (1962-01-01), Cioffi
patent: 3951297 (1976-04-01), Martin
patent: 4326641 (1982-04-01), Wilken
patent: 4650087 (1987-03-01), White

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