Geometrical instruments
Patent
1974-09-09
1976-11-16
Miller, J. D.
Geometrical instruments
317 68, 317 62, 317 99, 339 14R, 339193P, H02H 322, H05K 704
Patent
active
039926524
ABSTRACT:
A two-part electrical surge arrester for protecting electrical equipment within a shielded enclosure from electromagnetic pulses and lighting on incoming lines. One part mounted on the exterior of the enclosure wall includes a chamber having fifty-five spark gaps employing a common ground plane. The second part mounted on the interior of the enclosure wall contains fifty-five current limiting resistors and fifty-five low pass filters. When both parts are mounted on opposite sides of the enclosure wall contacts from each engage through an opening in the wall to provide fifty-five protective paths between incoming lines and equipment within the enclosure.
REFERENCES:
patent: 3002162 (1961-09-01), Garstang
patent: 3136592 (1964-06-01), Miller
patent: 3435387 (1969-03-01), Reinke et al.
patent: 3626237 (1971-12-01), Bolton
patent: 3702420 (1972-11-01), Cooper
patent: 3778752 (1973-12-01), Noyes
patent: 3790858 (1974-02-01), Brancaleone et al.
patent: 3867670 (1975-02-01), Schor et al.
Blaisdell Leonard L.
Tetreault Normand E.
GTE Sylvania Incorporated
Keay David M.
Miller J. D.
Nealon Elmer J.
O'Malley Norman J.
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