Electricity: circuit makers and breakers – Periodic – Contact breaker detail
Patent
1978-11-22
1980-06-17
Scott, James R.
Electricity: circuit makers and breakers
Periodic
Contact breaker detail
29622, 29825, 1231465A, 200238, H01H 1900, F02P 702, H01H 1100
Patent
active
042085543
ABSTRACT:
The output segment of an ignition distributor rotor having an output segment and a spring contact member in series is coated with a silicone varnish dielectric material for effecting the suppression of radio frequency interference radiation and, to
establish an electrical connection between the ignition distributor rotor spring contact member and the silicone varnish coated rotor output segment, a potential is applied across the spring contact member, the rotor output segment and an air gap in series and of a sufficient level to overstress the dielectric strength of the silicone varnish material to thereby effect a rupture of the silicone varnish material to establish an electrical connection through electrical arcing between the spring contact member and the rotor output segment.
REFERENCES:
patent: 2227972 (1941-01-01), Hood et al.
patent: 3277268 (1966-10-01), Williams et al.
patent: 3418444 (1968-12-01), Ruehlemann
patent: 3887780 (1975-06-01), Crim
patent: 3941107 (1976-03-01), Rockwell
patent: 4007342 (1977-02-01), Makino et al.
patent: 4031284 (1977-06-01), Ingraham
patent: 4039787 (1977-08-01), Hori et al.
patent: 4074090 (1978-02-01), Hayashi et al.
patent: 4082926 (1978-04-01), Marks et al.
Kofoid, M. J.; "Phenomena at the Metal-Dielectric Junctions of High-Voltage Insulators in Vacuum and Magnetic Field"; AIEE Transactions, Dec. 1960; vol. 79(3), pp. 991-999.
Kofoid, M. J.; "Effect of Metal-Dielectric Junction Phenomena On High-Voltage Breakdown Over Insulators in Vacuum"; AIEE Transactions, Dec. 1960; vol. 79(3), pp. 999-1004.
General Motors Corporation
Scott James R.
Stahr Richard G.
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