Pressure valve for electrolytic capacitor, and electrolytic capacitor using same
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United States of America Patent
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Mar 29, 2016
Grant Date -
Aug 21, 2014
app pub date -
Jun 26, 2013
filing date -
Jun 28, 2012
priority date (Note) -
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Abstract
A pressure valve is made of gas-permeable flexible material, and an actuation portion and a supporter are formed integrally with each other. The actuation portion includes a thin portion and a thick portion provided in an outer region of the thin portion and having a thickness greater than that of the thin portion. When viewed from the direction of the thickness of the actuation portion, the thin portion has a cross-like shape, and the outer edge of the thin portion is shaped to include a plurality of first arcs each protruding toward the inside of the thin portion, and a plurality of second arcs each protruding toward the outside of the thin portion.
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