Apparatus for gripping and holding small workpieces
US4075302A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1977 |
| Grant date | Feb 21, 1978 |
| Priority date | — |
| Expiry date | Jun 13, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S269/909
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention is directed to an apparatus for gripping and holding a plurality of relatively small flat chips, such as electron microscope grids, by the edges thereof. An elevated support member is provided, the support member having a top surface which defines a table and having an aperture therein. A support flange extends inwardly from the aperture a predetermined distance below the table surface. A gripping assembly is removably mountable in the aperture in the support member. The gripping assembly includes a first gripping member having a periphery corresponding to the contour of the aperture and having a thickness at its periphery which corresponds to the predetermined distance. A second gripping member opposes the first gripping member. At least a portion of the periphery of the second gripping member has a contour that corresponds to the periphery of the first gripping member. A resilient spacing means is disposed between the first and second gripping members and is operative to normally bias the peripheries of the gripping members slightly apart. Means are provided for temporarily squeezing the gripping members together. In operation, the gripping assembly is mounted in th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.