Carafe filter with air lock prevention feature
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United States of America Patent
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Dec 26, 2017
Grant Date -
Jan 15, 2015
app pub date -
Jul 10, 2014
filing date -
Jul 12, 2013
priority date (Note) -
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Abstract
A filter for gravity-fed applications, having filter media with a hollow center, the filter being generally prone to a degradation or cessation in fluid flow due to air entrapment or air lock within the filter housing cavity, which develops during filtering. A diffuser element is introduced to pierce the entrapped air bubble, the diffuser element being an elongated structure connected to the filter housing top end cap and extending through the entrapped air bubble to the filter media.
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