Linear storage projector
US4211928A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1978 |
| Grant date | Jul 8, 1980 |
| Priority date | — |
| Expiry date | Nov 27, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21F5/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A storage unit for a quantity of radioactive material in a capsule attached to a leader by which the capsule can be moved, the unit having a straight passage through a body of radiation-shielding material within which the radioactive material can be stored, and a shutter for one end of the passage that is operable between two limits in one of which it closes the passage and in the other of which it locates a hole in register with the passage. A spring-biased tube in the passage fits in a recess around the hole for retaining the shutter in the "open" position, and this tube can be pulled back from the shutter by a fitting attached to the capsule when the capsule is stored, releasing the shutter to return to the first limit. An interlock is provided to prevent accidental opening of the shutter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.