Backflush filter, in particular for filtering lubricant oil

Details Backflush filter, in particular for filtering lubricant oil Backflush filter, in particular for filtering lubricant oil

2005-05-10

2005-05-10

Cecil, Terry K. (Department: 1723)

Liquid purification or separation

Plural distinct separators

Filters

C210S414000, C210S411000

Reexamination Certificate

active

06890434

ABSTRACT:
A backflushing filter for filtering oil includes filter candles22which are open at both ends24, 34and disposed around a rotary shaft1in 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 cock27is offset by an angle in the direction of rotation in relation to the lower flushing cock37.A lower closure element38moves 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 hoods60, 70.

REFERENCES:
patent: 3280980 (1966-10-01), King
patent: 3318452 (1967-05-01), Adams
patent: 3380591 (1968-04-01), Muller
patent: 4085051 (1978-04-01), Kaminsky et al.
patent: 4415448 (1983-11-01), Lennartz et al.
patent: 20020092814 (2002-07-01), Kangasniemi et al.
patent: 12 99 284 (1969-12-01), None
patent: 31 15 716 (1982-11-01), None
patent: 0 656 223 (1995-06-01), None
patent: 2 082 484 (1997-06-01), None

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