Safety device for sealing a drain assembly
US5015371A · kind A · utility
9Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 8, 1990 |
| Grant date | May 14, 1991 |
| Priority date | — |
| Expiry date | Jan 8, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F7/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A safety device for sealing a drain assembly including a plate element defining a basin with the drain assembly, a housing element depending from the plate element closed to an underground line associated with the drain assembly, and a seal element positionable between the plate element and drain assembly to provide a substantially fluid-tight seal therebetween when liquid fills the housing element interior.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.