US 10,441,908 B2 · Filter assembly with self-contained disposable filter cartridge

Abstract

A filtering device includes a two-piece housing and a disposable, self-contained filter cartridge. The filter cartridge includes a cylindrical filter with a specialized flow bypass endcap, and possibly a second differentiated endcap, wherein each endcap is coupled to opposing ends of the cylindrical filter. The flow bypass endcap includes two channels for the passage of fluids, one channel for the ingress of pre-filtered fluid another channel for egress of filtrate. The bottom endcap can block fluid flow into the end of the cylindrical filter. The filter cartridge includes an impermeable bladder which may be coupled to the outer surface of each endcap such that the bladder completely encloses the filter media. Fluid entering the system passes through ingress channel of the flow bypass endcap into bladder (which surrounds the filter and isolates the fluid from the filter housing).

Claims29

Dependent claims

A fluid treatment system with a replaceable fluid treatment assembly including entry/exit path for fluids to enter the fluid treatment system, pass through the treatment assembly, and then exit the system, said fluid treatment system comprising:

a. a casing to house the treatment assembly, said casing comprising at least one aperture to allow ingress and/or egress of fluids relative to said casing;
b. said treatment assembly comprising a top end, and a bottom end opposing said top end, said treatment assembly further comprising a treatment medium and a bladder, said bladder adapted to contain the treatment medium;
said bladder comprising at least one bladder aperture adapted to allow fluid ingress and egress relative said bladder;
c. a flow bypass endcap coupled to the treatment medium and said casing, wherein said bypass endcap comprises a central channel and a second outer channel situated around said central channel;
and
d. a ring along the top end of said treatment assembly, said ring immediately adjacent said bladder, and said ring immediately adjacent an interior surface of said casing.

3 more elements

Dependencies are inferred from the claim text.

Filter assembly with self-contained disposable filter cartridge

Life of this patent

Filter assembly with self-contained disposable filter cartridge

Life of this patent

Abstract

Claims29