Nuclear reactor installation in underground construction
US4167087A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1977 |
| Grant date | Sep 11, 1979 |
| Priority date | — |
| Expiry date | Jul 29, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Nuclear reactor installation in underground construction having a tunnel extending from a location at the surface of the earth to an underground concrete tank includes an auxiliary tunnel extending from a branching location of the first-mentioned tunnel to a location at the surface of the earth different than that from which the first-mentioned tunnel extends, the auxiliary tunnel having a cross section smaller than that of the first-mentioned tunnel and having means disposed therein for blocking the auxiliary tunnel, the blocking means being openable during operation of the nuclear reactor installation, the first-mentioned tunnel being substantially rectilinear and being continuously closed during operation of the nuclear reactor installation between the branching location thereof and the location at the surface of the earth from which the first-mentioned tunnel extends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.