Sealing profile
US4946309A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 17, 1989 |
| Grant date | Aug 7, 1990 |
| Priority date | — |
| Expiry date | May 17, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D11/385
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A sealing profile made of rubber or rubber-like material for installation in a recess extending around concrete segments for a tunnel tube. The profile has on the base side a plurality of parallel grooves extending in the longitudinal direction, and parallel ducts extending in the longitudinal direction on the top side. The ducts are laterally displaced with respect to the grooves, and the back of the profile is substantially shaped with a plane surface. Of the three grooves provided on the base side, the center groove is from 10% to 20% deeper and wider than the adjacent grooves. In the center of the profile, the spacing between the ducts is larger than the spacing between the ducts disposed away from the center of the profile. The lateral sides of the profile are inclined at an angle of from 10 to 20 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.