Spherical retarding grid analyzer
US4714831A · kind A · utility
3Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 1986 |
| Grant date | Dec 22, 1987 |
| Priority date | — |
| Expiry date | May 1, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/488
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A spherical grid for use in instrumentation comprising a rigid non-magnetic frame having a pattern of holes. Into each hole a flat wafer is placed, each wafer having etched therein holes defining the grid mesh. The frame maintains the geometric conformal shape allowing large units to be constructed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.