Liquid purification or separation – With drip – overflow or content draining feature
Reexamination Certificate
2006-03-21
2006-03-21
Lithgow, Thomas M. (Department: 1724)
Liquid purification or separation
With drip, overflow or content draining feature
C210S297000, C210S298000, C210S323100, C210S402000
Reexamination Certificate
active
07014760
ABSTRACT:
A device is disclosed for receiving and separating chips and coolant collecting on machine tools, the coolant being returned for reuse and the chips being removed, having a receiving tank (1) to receive the chips and the coolant, a rising guide section (3) adjoining the receiving tank (1), an elevated discharge section (4) adjoining the guide section (3), a chain-like closed transport element, which, at least in the region receiving the chips and the coolant and in the discharge section (4), is guided over deflection elements (6, 7), at least one of which is coupled to a rotary drive, and a rotatably mounted filter drum (12), which is in drive connection with the transport element. A suggestion is made for preventing unfiltered coolant from penetrating the tanks for filtered coolant in the event the receiving tank overflows.This is achieved in that holders (12), whose projecting ends, which are directed downward, extend into an overflow channel (10), are tightly attached externally to the wall of the receiving tank (1) the overflow channel (10) is guided around the device at a level below the top edge (2) of the receiving tank (1) and is removably held on the holders (12), the overflow channel (10) tightly covers tanks (22) located beneath it having filtered coolant, the inner edge (15) of the overflow channel (10) neighboring the receiving tank (1) lies at a higher level than the outer edge (16) of the overflow channel (10), which is further away from the receiving tank (1), and at least one outlet device (17) is provided in the bottom region of the overflow channel (10).
REFERENCES:
patent: 6017446 (2000-01-01), Harms et al.
patent: 296 09 685 (1996-08-01), None
patent: 1 053 825 (2000-11-01), None
patent: 1 177 854 (2002-02-01), None
International Search Report PCT/EP 03/05243, dated Sep. 3, 2003.
Ackermanns Leo J. P.
Krōonen Wiel E. H.
van Loo Joseph H.
Calfee Halter & Griswold LLP
Lithgow Thomas M.
Mayfran International B.V.
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