High speed x-ray shutter
US4592083A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 27, 1984 |
| Grant date | May 27, 1986 |
| Priority date | — |
| Expiry date | Mar 27, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/043
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A high speed actuator for controlling the shutter in x-ray equipment so as to eliminate transition time during which the x-ray dose is wasted. The actuator includes a driving solenoid for rotating and axially displacing a shutter member so as to move a shutter aperture to an open position, a mechanical arrangement for blocking movement of the member when the shutter aperture reaches the open position, and an electro-magnetic brake, having an armature and coil, interconnected with the driving solenoid such that braking engagement between the armature and coil is effected by movement of the shutter member and aperture to the open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.