Radioactive hot cell access hole decontamination machine
US4343059A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 6, 1981 |
| Grant date | Aug 10, 1982 |
| Priority date | — |
| Expiry date | Apr 6, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B1/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Radioactive hot cell access hole decontamination machine. A mobile housing has an opening large enough to encircle the access hole and has a shielding door, with a door opening and closing mechanism, for uncovering and covering the opening. The housing contains a shaft which has an apparatus for rotating the shaft and a device for independently translating the shaft from the housing through the opening and access hole into the hot cell chamber. A properly sized cylindrical pig containing wire brushes and cloth or other disks, with an arrangement for releasably attaching it to the end of the shaft, circumferentially cleans the access hole wall of radioactive contamination and thereafter detaches from the shaft to fall into the hot cell chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.