Device for positioning objects within a sealed chamber
US5139383A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1991 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Jul 23, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18992
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for positioning objects within a sealed vacuum chamber (112) comprises a stationay housing (114), which is sealingly attached to the vacuum chamber (112). Located within the housing (114) is a tubular body (158) capable of rotating and translating within the stationary housing (114) through the interaction of an outer magnet (116), which slides and rotates on the surface of the stationary housing, and an inner magnet (118), which is attached to the tubular body (158). A shaft (198) is located inside the tubular body, but cannot be shifted axially with respect to this body. The front end of shaft (198) extends into the vacuum chamber (112) and may carry a specimen or any other object to be treated or tested in the vacuum chamber. The shaft (198) is driven from an external drive mechanism (124). Rotation of the shaft can be converted into opening and closing movements of the jaws (218 and 220). Thus, the object can be clamped by the jaws, rotated, and linearly moved inside a sealed chamber under the control of external drive means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.