The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2005
Filed:
May. 17, 2001
Willi Rott, Bornheim, DE;
Wilhelm Vieten, Wegberg, DE;
Heinz Heinrich Leonhard Sindorf, Rommerskirchen, DE;
Rüdiger Lennartz, Pulheim, DE;
Sivagnanam Kandiah, Pulheim, DE;
Willi Rott, Bornheim, DE;
Wilhelm Vieten, Wegberg, DE;
Heinz Heinrich Leonhard Sindorf, Rommerskirchen, DE;
Rüdiger Lennartz, Pulheim, DE;
Sivagnanam Kandiah, Pulheim, DE;
Boll & Kirch Filterbau GmbH, , DE;
Abstract
A backflushing filter for filtering oil includes filter candleswhich are open at both endsand disposed around a rotary shaftin 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 cockis offset by an angle in the direction of rotation in relation to the lower flushing cockA lower closure elementmoves 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