Filters cleanable by reverse flushing
OwnerPeretz Rosenberginventor
Life of this patent
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Abstract
A filter capable of being cleaned by reverse flushing, comprises a housing including a fluid inlet, a fluid outlet, a flushing outlet, and a filter body disposed within the housing. The housing includes blocking members disposed on opposite faces of the filter body and axially spaced from each other to define a reverse flushing passageway from the fluid inlet to the flushing outlet through the portion of the filter body between the axially-spaced blocking members. At least one of the blocking members is movable axially of the filter body to reversely-flush the complete length of the filter body.
Claims17
A filter capable of being cleaned by reverse flushing, comprising a housing including a fluid inlet, a fluid outlet, a flushing outlet, and a filter body disposed within the housing;
- characterized in that said housing includes blocking members disposed on opposite faces of said filter body and axially spaced from each other to define a reverse flushing passageway from the fluid inlet to the flushing outlet through the portion of the filter body between said axially-spaced blocking members, at least one of said blocking members being movable axially of the filter body to reverse flush the complete length of the filter body.
A filter capable of being cleaned by reverse flushing, comprising:
- a housing having a fluid inlet, a fluid outlet, and a flushing outlet;
- a cylindrical filter body disposed within the housing and spaced from its inner face to define a central passageway through the filter body, and an annular passageway between the filter body and the inner face of the housing;
- a central blocking member located within said central passageway to block the fluid flow therethrough;
- an annular blocking member located within said annular passageway to block the fluid flow therethrough;
- said annular blocking member being spaced axially of the central blocking member and being movable axially of the filter body;
- and a valve controlling the flow through said flushing outlet such that:
- when said valve is closed, a normal filtering operation is performed wherein the fluid flow is from the housing inlet, in the forward direction through the filter body, and out through the housing outlet;
- and when said valve is open, a cleaning operation is performed wherein the fluid flow is from the housing inlet, in the forward direction through a portion of the filter body, then in the reverse direction through another portion of the filter body between said blocking members, and out through the flushing outlet, thereby reverse flushing the portion of the filter body between said blocking members.
A filter capable of being cleaned by reverse flushing, comprising a fluid inlet, a fluid outlet, a flushing outlet and a filter body disposed within the housing;
- said housing including blocking members disposed on opposite faces of said filter body and axially spaced from each other to define a reverse flushing passageway from the fluid inlet to the flushing outlet through the portion of the filter body between said axially-spaced blocking members, both of said blocking members being movable axially of the filter body while in axially-spaced relationship with each other to reversely-flush the complete length of the filter body.
Dependencies are inferred from the claim text.