Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1990-01-26
1991-09-03
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200148R, H01H 3382
Patent
active
050456512
ABSTRACT:
A switch provided with a negative pressure chamber which is actuated in association with the separating operation of a movable contact. The negative pressure chamber is connected to a means for supplying a fluid to the negative pressure chamber so as to suppress the negative pressure in the negative pressure chamber during the initial stage of the separaating operation of the movable contact.
Honda Haruo
Itoh Syunji
Seki Takahide
Seki Yasuharu
Tsukushi Masanori
Hitachi , Ltd.
Macon Robert S.
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