Ultra-high tilt specimen cryotransfer holder for electron microscope
US5753924A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1997 |
| Grant date | May 19, 1998 |
| Priority date | — |
| Expiry date | Mar 12, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2237/2001
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ultra-high tilt cryotransfer holder is provided which is capable of rotating a specimen through a full 360.degree. tilt angle (180.degree. from horizontal in both clockwise and counterclockwise directions) without spillage of cryogenic liquid, and while maintaining proper protection and cooling of the specimen. The cryotransfer holder includes a holder body having a specimen tip and a source of cooling for the specimen tip. The specimen tip includes a specimen grid of a thermally conductive material which has a plurality of grid openings between crossing grid bars. The grid may be extended from the holder into a forward viewing position or retracted into a protected position within a cryoshield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.