Rupture disc having laser-defined reversal initiation and deformation control features
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United States of America Patent
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Jan 24, 2017
Grant Date -
Jan 23, 2014
app pub date -
Jul 18, 2012
filing date -
Jul 18, 2012
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Abstract
A reverse-acting rupture disc (10) having a laser-defined reversal initiation feature (16) is provided in the bulged section (12) of the disc. The reversal initiation feature comprises at least a first lased area (22) that has a reduced thickness relative to rest of the bulged section. A second lased area (24) may also be provided within the margins of the first lased area. The second lased area has a depth that is greater than the depth of the first lased area. A line of weakness (40) may be formed in the bulged section that functions to direct reversal of the bulged section toward a particular area of the disc, such as line-of-opening recess (56).
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