Shoe type seal for floating tank roof, or the like

Details Shoe type seal for floating tank roof, or the like Shoe type seal for floating tank roof, or the like

1977-11-14

1979-05-15

Price, William

Receptacles

Closures

Floating closure

220224, B65D 87207

Patent

active

041543599

ABSTRACT:
A variable-volume storage tank, or the like, of the type having a floating roof, including an upright cylindrical shell, a circular roof within the cylindrical shell and adapted to float on the surface of a liquid within the shell, a circular metallic-shoe seal ring encircling and spaced outwardly from the roof and slidably engaging the shell, circumferentially spaced, outwardly concave, bowed leaf spring hangers extending between the roof and the seal ring, means connecting each of the hangers to the roof intermediate the ends of the hanger, means permitting horizontally circumferential movement of the ends of each of the hangers relative to the seal ring for connecting the ends of the hanger to the seal ring, and a flexible annular seal extending between the roof and the seal ring and having its inner periphery secured to the roof and its outer periphery secured to the seal ring.

REFERENCES:
patent: 2740549 (1956-04-01), Graham et al.
patent: 2788913 (1957-04-01), Allen
patent: 3185335 (1965-05-01), Lecler

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