Implements or apparatus for applying pushing or pulling force – Miscellaneous
Patent
1991-09-12
1993-08-03
Kisliuk, Bruce M.
Implements or apparatus for applying pushing or pulling force
Miscellaneous
254 89H, 254 93HP, B66F 108
Patent
active
052322025
ABSTRACT:
A method of lifting storage tanks by using pressurized bags and support members. Lifting the tank allows for visual inspection under the tank for corrosion to prevent leakage of environmentally hazardous chemicals stored in the tank. The lifting bags are placed under the tank, inflated, and support timbers placed under the raised tank. The bags are then deflated allowing the tank to rest on the support timbers. The deflated bags are raised by placing support timbers under the bags. The bags are again pressurized further raising the tank. The steps are repeated until the tank is lifted to the desired height. Ground suction is broken by raising one side of the tank with the lifting bags, placing supports as far as possible under the tank rim and depressurizing the bags to rock the other side of the tank off the ground. A fulcrum method is also applied to use the partial weight of the tank as a leverage force to alternately raise opposite sides of the tank.
REFERENCES:
patent: 2714011 (1955-07-01), Albee
patent: 2749592 (1956-06-01), Vartia
patent: 3010698 (1961-11-01), Allen
patent: 3063675 (1962-11-01), Allen
patent: 4060170 (1977-11-01), Walters
patent: 4061310 (1977-12-01), Vetter
patent: 4518151 (1985-05-01), Dill, Jr.
patent: 4807851 (1989-02-01), DeCastro
patent: 4930750 (1990-06-01), DeCastro
Kisliuk Bruce M.
Morgan E.
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