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US 7,404,895 B2Granted
Filter apparatus for separating particles from a liquid
AssigneeMann+Hummel GmbH
InventorLuc Reynders
Life of this patent
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AssigneeMann+Hummel GmbH
InventorLuc Reynders
Estimating the term…
A filter apparatus for separating particles from a liquid having a tank with a feed inlet, a gravitational settling zone and a filtration zone arranged downstream of the settling zone. Inside the tank are two transversely spaced-apart endless chains with transversely extending drivers fixed between the chains, the drivers and chains together forming a conveying apparatus driven by gear wheels and a drive motor. The filtration zone includes a vacuum chamber, which is formed partly by the tank and is arranged underneath the solid particle filtration apparatus. Between the unfiltered liquid region and the filtered liquid region is a filter media strip, which is pulled through the tank along a path which changes direction by the chains and drivers. Each chain has flexible metal strips that extend along the chain and over a plurality of chain links. The metal strips are fixed at one end and partially overlap. These metal strips exert a force directed toward the filter media strip, which ensures that a seal is formed between the unfiltered liquid region and the filtered liquid region in the area where the moving filter media strip changes direction.
A filter apparatus for separating particles from a liquid, comprising a tank with a feed inlet, a gravitational settling zone and a filtration zone disposed downstream thereof, wherein the tank is equipped with two transversely spaced-apart, driven, endless chains with transversely extending drivers are provided between the chains, said chains and drivers forming a conveying apparatus driven by gear wheels and a drive motor, and wherein the filter apparatus has a vacuum chamber formed partly by the tank and arranged underneath the filtration zone, and a filter media strip is disposed between an unfiltered liquid region and a filtered liquid region and is moved through the tank along a path which changes direction by conveying apparatus, wherein each chain or each driver has flexible metal strips provided thereon, said strips extending along the chain over a plurality of chain links, each said strip being fixed at one end and partially overlapping with a succeeding strip, said strips exerting a force directed toward the filter media strip which ensures formation of a seal between the filtered liquid region and the unfiltered liquid region in the area where the moving filter media strip changes direction.
Dependencies are inferred from the claim text.