Short pumping stem for flat display screens

Details Short pumping stem for flat display screens Short pumping stem for flat display screens

1995-02-17

1996-05-21

O'Shea, Sandra L.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313493, 313623, H01J 162, H01J 6304, H01J 1718, H01J 6136

Patent

active

055192840

ABSTRACT:
A short pumping stem for flat display screens, more particularly for microtip flat display screens, generally adaptable to flat display screens constituted by a vacuum chamber, includes, before closure, an exhaust tube whose lower portion is integral with the middle portion of an upper concave wall of a cylindric portion having a diameter larger than the diameter of the tube.

REFERENCES:
patent: 2473860 (1949-06-01), Cartun
patent: 2491735 (1949-12-01), Howes
patent: 3239130 (1963-07-01), Naundorf, Jr.
patent: 3313610 (1967-04-01), Wilson et al.
patent: 4395244 (1983-07-01), Glaser
patent: 4820225 (1989-04-01), Thompson-Russell et al.
patent: 4926092 (1990-05-01), Gibson, III et al.
IBM Technical Disclosure Bulletin, vol. 17, No. 1, Jun. 1974 pp. 284-285, J. B. Landermann et al. "gas display panel".

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