Tank construction
US3990600A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1975 |
| Grant date | Nov 9, 1976 |
| Priority date | — |
| Expiry date | Aug 14, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D90/029
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
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 w…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.