Wall drainage system
US4309855A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 1980 |
| Grant date | Jan 12, 1982 |
| Priority date | — |
| Expiry date | May 2, 2000 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D31/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wall drainage system for protecting foundations and basement walls from water contact and seepage and including a water-impermeable synthetic resin backing plate adapted for securement to a surface to be protected and defining drainage channels along one side thereof facilitating drainage of water downwardly along the backing plate through the channels. A water-permeable synthetic resin strainer film is secured to the backing plate across the drainage channels. A synthetic resin water-receiving footer structure is connected to the lower end of the backing plate and includes a foraminous, synthetic resin bead pack and a perforated drainage pipe at least partially surrounded by the bead pack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.