WATER PURIFYING FILTER CARTRIDGE STRUCTURE
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United States of America Patent
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Issued Date -
May 21, 2020
app pub date -
Nov 14, 2019
filing date -
Nov 15, 2018
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Abstract
A water purifying filter cartridge structure includes: a filter cartridge main body and a filter cartridge bottom seat. The filter cartridge main body includes: a filter barrel, a filter barrel cover, a filter body, a filter chamber, and a back flow check component. The filter barrel cover is disposed on a top portion of the filter barrel. The filter body is adapted to remove impurities from water. The filter chamber is disposed in the filter barrel, and the back flow check component is disposed in the filter barrel. The back flow check component includes a first back flow check piece, a second back flow check piece, and a third back flow check piece. The first back flow check piece and the second back flow check piece are adapted to prevent back flow at the water input end.
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