BATTERY SEPARATOR FOR A STORAGE BATTERY
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United States of America Patent
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Issued Date -
Aug 22, 2019
app pub date -
Jan 2, 2019
filing date -
Apr 30, 2009
priority date (Note) -
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Abstract
A battery separator for a lead acid (storage) battery is made from a thermoplastic sheet material. The sheet material has a central region flanked by peripheral regions. The central region includes a plurality of longitudinally extending ribs that are integrally formed from the sheet material. The peripheral regions are free of ribs and may include a densified structure. Also disclosed are a method of producing the foregoing separator, an envelope separator made from the sheet material, and a method of making the envelope separator.
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