Bag-type filter apparatus with venturi-supported air diffuser

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United States of America Patent

PATENT NO 4289511
SERIAL NO

06171350

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The invention is directed to the more effective cleaning of filter bags in a filter apparatus of the type having tubular venturis extending into the outlet ends of tubular supporting cages for the respective filter bags. Generally, such filter bags are cleaned by a periodic reverse flow of a jet of air into each venturi and thus through the filter bag. To enhance the cleaning of each filter bag, the present invention provides a hollow, perforated air diffuser tube communicatively connected to, supported by and extending from each venturi and longitudinally within the respective tubular cage and its surrounding filter bag so that, when a reverse flow of a jet of air is directed into the filter bag via the venturi, the diffuser tube diffuses and distributes the air throughout the filter bag so as to dislodge filtered particles along the length of the filter bag.

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Patent Owner(s)

  • JOHNSON, FRANCES H.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Johnson, Jr Allen S P.O. Drawer 1037, Salisbury, NC 28144 12 202

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