Collapsible, self-expanding liquid container
US5429437A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1994 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Aug 9, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S220/904
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A liquid container especially suited for use in the capture of liquid hazardous materials is disclosed, the container comprising a bottom, preferably circular, and a generally vertical wall, preferably annular or conical, attached to the perimeter of the bottom to form a container with a large open top. The bottom and wall are composed of a flexible, liquid impermeable material, preferably a material that is also chemical resistant and wear resistant. The container may further comprise a liner. The top edge of the wall incorporates a semi-rigid floating member which completely encircles the opening, the floating member being collapsible or foldable for storage purposes. The perimeter portion of the bottom incorporates a structural or frame member which is composed of a flexible, resilient material which provides rigidity to the perimeter and acts to spread the bottom to its maximum size. The frame member is collapsible on itself such that the device can be collapsed into a small size for storage. The frame member is self-opening from the collapsed state to the full open rigid state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.