Backflush filter, in particular for filtering lubricant oil

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6890434
APP PUB NO 20030136715A1
SERIAL NO

10275520

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A backflushing filter for filtering oil includes filter candles 22 which are open at both ends 24, 34 and disposed around a rotary shaft 1 in a filter housing. A cleaning device is moved in conjunction with the rotary shaft and includes upper and lower flushing cocks communicating with an outflow valve via the shaft for cleaning the candles during a backflushing operation. The upper flushing cock 27 is offset by an angle in the direction of rotation in relation to the lower flushing cock 37. A lower closure element 38 moves in conjunction with the upper flushing cock at the opposite end of a filter candle(s) selected for backflushing. Likewise, an upper closure element is associated with the lower flushing cock. The candles can be reverse-flushed in opposite directions and at different times by the flushing cocks and closure elements. The flushing cocks and closure elements are moved inside annular deflection hoods 60, 70.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
BOLL & KIRCH FILTERBAU GMBH50170 KERPEN

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kandiah, Sivagnanam Pulheim, DE 3 9
Lennartz, Rudiger Pulheim, DE 9 128
Rott, Willi Bornheim, DE 6 50
Sindorf, Heinz Heinrich Leonhard Rommerskirchen, DE 1 2
Vieten, Wilhelm Wegberg, DE 2 5

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