Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1976-01-28
1977-10-11
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200148F, 200150G, H01H 3370
Patent
active
040537277
ABSTRACT:
A gas current blow-out switch has an electrically conducting compression cylinder, a stationary hollow power contact pin supported in the cylinder and a piston surrounding the pin and slidably received in the cylinder for compressing an arc-extinguishing gas therein. A nozzle is affixed to the cylinder for bounding one end thereof. A movable hollow power contact pin is supported coaxially with the stationary contact pin to assume open and closed positions. The switch has an electrically conducting stationary tube axially aligned with and spaced from the compression cylinder; a contact bridge slidably supported by and being in continuous electric contact with the stationary tube and the movable contact pin. The contact bridge has a closed position in which it electrically contacts the compression cylinder and an open position in which it is separated therefrom. An insulator cylinder which surrounds the compression cylinder and is slidable thereon, is coupled to the contact bridge for shifting the latter into its open position upon motion of the insulator cylinder in one direction. A carriage is shiftably arranged on a support and an externally actuated drive member is secured to the carriage and is displaceable between two limits with respect to the carriage. The drive member displaces the carriage after the drive member reaches either one of the limits. The drive member is arranged to displace the piston and the carriage is arranged to displace the insulator tube.
REFERENCES:
patent: 3829641 (1974-08-01), Zuckler
patent: 3940583 (1976-02-01), Hertz
patent: 3941962 (1976-03-01), Thaler
LICENTIA Patent-Verwaltungs-G.m.b.H.
Macon Robert S.
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