Hose-like seal device for concrete joints
US4499925A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 18, 1982 |
| Grant date | Feb 19, 1985 |
| Priority date | — |
| Expiry date | Nov 18, 2002 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B1/6816
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A mesh hose bears upon a liquid pervious, for instance helical-spring shaped support body, and upon such mesh hose there lies a paper-like hose. This structure is loosely placed in an external mesh hose portion. The paper-like hose can be impregnated. If such sealing device is placed with closed ends into a concrete joint, which then is to be closed with concrete, the sealing device then can be drilled from the outside through the concrete and filled with a sealing compound or agent which penetrates through the wall of the device into untight or leaky concrete locations and can seal the same. The paper-like hose successfully prevents the clogging of the device by concrete grout or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.