Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
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33/00
High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
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H01H33/70
Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
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H01H33/88
the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
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H01H33/90
this movement being effected by or in conjunction with the contact-operating mechanism
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H01H2033/908
using valves for regulating communication between, e.g. arc space, hot volume, compression volume, surrounding volume
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