Gas switch with pressure recease cover
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United States of America Patent
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Aug 2, 1988
Issued Date -
N/A
app pub date -
Jun 18, 1987
filing date -
Mar 10, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Herein disclosed is a gas switch comprising: a body casing having an arc-extinguishing gas such as the SF6 gas and the like confined therein; bushings having their inner end portions inserted into said body casing; a rod-shaped stationary electrode and a hollow stationary electrode attached to the inner end portions of the bushings movable electrodes contacting with the rod-shaped stationary electrode at all times and made movable into and out of contact with said hollow stationary electrode; insulated bearing sleeves bearing the movable electrodes, respectively; a plurality of rocking arms for rocking in association with the turn of a drive shaft so that the movable electrodes are linearly moved through the insulated bearing sleeves by the rocking motions of the rocking arms to open and close the gas switch; and a connecting mechanism for connecting the rocking arms to the insulated bearing sleeves, respectively. The connecting mechanism includes: engaging grooves formed in the outer sides of the insulated bearing sleeves and opened at their sides facing the drive shaft; and engaging projections so formed in portions of the rocking arms as to directly engage with the engaging grooves and allowing in their engaging states the rocking arms to rock in the engaging grooves.
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