Rupture disk and gas insulated switchgear having the same
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United States of America Patent
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Sep 1, 2015
Grant Date -
Jan 16, 2014
app pub date -
Mar 1, 2013
filing date -
Jul 16, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A rupture disk for a gas insulated switchgear which includes a thin dome plate that includes a first flange portion and a first dome-shaped portion formed in a dome shape, at the center of the first flange portion; and a rupture guide plate which includes a second flange portion, laminated on the first flange portion, and a second dome-shaped portion has a plurality of slots formed therein to define a rupture shape so that a part of the first dome-shaped portion is ruptured, in a predetermined shape, when an internal pressure increases. End portions of slots, disposed at both edges among the plurality of slots, are provided with rupture restriction openings, respectively, to configure a hinge portion of the second dome-shaped portion.
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