Foldable liners for fluids holding storage tanks

Details Foldable liners for fluids holding storage tanks Foldable liners for fluids holding storage tanks

1977-09-23

1979-08-07

Lowrance, George E.

Receptacles

Container attachment or adjunct

Pressure relief means

220216, 48176, B65D 8904, B65D 8916

Patent

active

041635051

ABSTRACT:
A polyhedrical shaped liner, mounted vertically inside a cylindrical storage tank, is fixed to the inner top of the tank.
The lower portion of the liner is fixed to a rigid frame which is free to displace in the vertical direction.
Means, located on equidistant horizontal narrow strips of the liner, restrain the strips from displacing radially inwards but allow them to move in the vertical direction.
Means, that apply forces directed vertically upwards over the rigid frame and of sufficient magnitude to produce critical compressive stresses in the liner, are provided.
These critical compressive stresses induce buckling of the portions of the liner comprised between successive narrow strips and folding of the liner in-situ is achieved.

REFERENCES:
patent: 1597399 (1924-08-01), Wilson
patent: 1631959 (1927-06-01), Glass
patent: 2050686 (1936-08-01), Wiggins
patent: 2867346 (1959-01-01), Champagnat

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