Electric lamp and discharge devices – Electrode and shield structures – Foraminous electrodes or shields
Patent
1982-01-27
1984-06-26
Moore, David K.
Electric lamp and discharge devices
Electrode and shield structures
Foraminous electrodes or shields
313532, 313541, 29 18, H01J 146, H01J 152, H01J 1704, H01J 1712, H01J 1938, H01J 1940, H01J 2110
Patent
active
044568525
ABSTRACT:
A planar mesh structure that facilitates forming into a non-planar mesh structure comprises a peripheral support ring lying in a plane with a plurality of first members and a plurality of second members lying in the plane. The first members comprise substantially concentric, spaced-apart mesh rings of progressively decreasing diameter disposed within the peripheral support ring. The plurality of second members extend generally inwardly from the peripheral support ring and terminate at the innermost of the first members. The second members intersect the first members disposed between the peripheral support ring and the innermost first member to form, with the intersected first members, a plurality of apertures. In one embodiment, the second members are generally arcuately shaped and lie in a first plane with the support ring and the first members. The arcuate shape permits the second members to be formed in a second plane substantially orthogonal to the first plane without significantly stretching the second members. In an alternative embodiment, the second members have a generally undulatory shape lying in the first plane with the support ring and the first members. The generally undulatory shape provides forming relief which permits the second members to be formed into a second plane substantially orthogonal to the first plane without significantly stretching the second members.
REFERENCES:
patent: 3130487 (1964-04-01), Mears
patent: 3152384 (1964-10-01), Toohig et al.
patent: 3200469 (1965-08-01), Law
patent: 3344495 (1967-10-01), Drees et al.
patent: 3352729 (1967-11-01), Kling et al.
patent: 4060747 (1977-11-01), Faulkner
Faulkner Richard D.
Henry Dale V.
Coughlin Jr. Vincent J.
Irlbeck Dennis H.
Moore David K.
RCA Corporation
Whitacre Eugene M.
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