Foil changing apparatus
US4734586A · kind A · utility
7Cited by
14References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1986 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | Mar 6, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J37/301
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A self-contained hermetically sealed foil changer for advancing a portion of foil web into a position normal to the path of a high energy particle beam. The path of the beam is defined generally by an aperture plate and cooperating axially movable barrel such that the barrel can be advanced toward the plate thereby positioning a portion of the foil across the beam path and sealing the foil between the barrel and the plate to form a membrane across said beam path. A spooling apparatus contained in the foil changer permits selectively advancing a fresh supply of foil across the beam path without breaking the foil changer seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.