Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1979-08-27
1982-05-11
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200148F, H01H 3388
Patent
active
043295533
ABSTRACT:
A gas-blast switch having a pump cylinder conjointly movable with a movable contact element, the pump cylinder enclosing a pump chamber containing extinguishing gas and feeding a blast nozzle. Within the pump cylinder there is movably arranged a pump piston which, during the course of the cutoff stroke, displaces the extinguishing gas out of the pump chamber through the blast nozzle. In order to utilize the drive energy at the start of the cutoff stroke extensively for accelerating the movable switch elements and to somewhat delay in time the compression of the extinguishing gas in the pump chamber, likewise requiring the drive energy, there is hingedly connected at the pump piston one element of a toggle lever which is fixedly hinged at its other element and assumes a bent position in the cuton position. The toggle lever is guided by a guide element coupled with the movable contact element. This guide element, during the course of the cutoff stoke, initially intensifies the bent position of the toggle lever prevailing during the cuton position, then reduces and finally again intensifies such bent position of the toggle lever. As a result, the pump piston, during a cutoff stroke, initially moves in the same sense, then in the opposite sense, and finally again in the same sense with the pump cylinder.
REFERENCES:
patent: 1873388 (1932-08-01), Greenwood
Kleeman Werner W.
Macon Robert S.
Sprecher & Schuh AG
LandOfFree
Gas-blast switch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gas-blast switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas-blast switch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-757944