Sump cover system for underground liquid storage tanks
US7712259B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 20, 2007 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Oct 20, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D29/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A quick, field installed sump cover system for below ground sumps includes a support ring, a seal between the ring and sump upper lip, preferably two compression brackets each having two spaced regions extending under riser parts, at least one elongated member coupled between the support ring and compression brackets for selectively applying tension forces therebetween causing the bracket regions to engage the riser parts and the support ring to compresses the sealing member to form liquid-tight seal with the sump lip. The sump top can be closed by a dome-cover removably coupled to the support ring. The elongated members can include chain-like members with tensioning devices that, in field installations, can accommodate various sump sizes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.