DR. VINCENT J ROSSITTO, D.D.S.
Dentist at Clinton St, Buffalo, NY

3990600, Nov 9, 1976

Aug 14, 1975

5/604828

Vincent J. Rossitto - Buffalo NY
Robert E. Baker - North Evans NY
James J. Jarvis - Kenmore NY
James N. De Serio - Kenmore NY

Metal-Cladding, Inc. - North Tonawanda NY

B65D 702, B65D 742, B65D 8902, B65D 8912

220 5A

An improved upstanding cylindrical tank is provided, in one aspect of the invention, with a ring-like stiffening member at its open upper end to resist flexure and deformation of the side wall structure under wind loading. The stiffening member has a cylindrical inner flange portion formed integrally with the tank wall, an annular web portion extending radially outward from an upper part of the upper flange portion, and a cylindrical outer flange portion depending from an outer part of the web portion and arranged concentrically with the inner flange portion. The stiffening member has a minimum vertical moment of inertia and is configured to have its vertical neutral axis located approximately midway between the furthermost fibers of the inner and outer flange portions. A tank is provided, in another aspect of the invention, with means for resisting an overturning moment which produces additional tensile forces in a leading portion of the wall structure and additional compressive forces in a trailing portion thereof. The resisting means are arranged near the bottom of the tank and include vertically-spaced upper and lower annular flanges extending radially outwardly from the side wall structure, and a plurality of circularly-spaced anchor bolts arranged to act on the upper flange to resist the additional tensile forces.