Disposable spray aperture

Details Disposable spray aperture Disposable spray aperture

1988-08-04

1989-08-15

Berman, Jack I.

Radiant energy

Radiation controlling means

2505031, 250310, 250311, 250307, H01V 3709

Patent

active

048577430

ABSTRACT:
A spray aperture disk designed for insertion into a column liner of an electron microscope having a substantially circular shape, a plurality of tabs or extensions located on the circumferential periphery of the disk and a small central aperture. The disk is inserted into the tapered end of a column liner and then deformed by a tool which pushes the disk into position within the column liner. The disk may be removed by inserting a rod of appropriate length and width into the column liner and pushing the disks out. The disks are self centering and require no separate carrier. The disks are made from inexpensive materials and are disposable.

REFERENCES:
patent: 3286293 (1966-11-01), Eckert
patent: 3787696 (1974-01-01), Dao et al.
patent: 4445040 (1984-04-01), Iwasaki et al.

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