US 10,765,973 B2Granted

Filter core configuration

AssigneeBrita LP

InventorsNikhil P. Dani, Russell Bell

Life of this patent

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Abstract

In one example, a filter core includes a body with a generally cylindrical shape and a substantially hollow interior. The body includes a first annular wall disposed proximate a first end of the body, and a second annular wall disposed proximate a second end of the body such that the second annular wall is axially spaced apart from the first annular wall, and the second annular wall and the first annular wall extend toward each other. As well, the filter core includes a framework connected to the first annular wall and the second annular wall. The framework and the first and second annular walls cooperate with each other to define a group of openings, each of which communicates with the substantially hollow interior of the body, and the openings collectively define an open space of the filter core.

Claims19

Dependent claims

A filter core, comprising:

a body extending along a longitudinal axis having a cylindrical shape that defines a hollow interior, the body comprises:
a first annular wall disposed proximate a first end of the body;
a second annular wall disposed proximate a second end of the body such that the second annular wall is axially spaced apart along the longitudinal axis from the first annular wall, and the second annular wall and the first annular wall extending axially toward each other;
and
a framework connected to the first annular wall and the second annular wall, wherein the framework includes a plurality of elements, the plurality of elements and the first and second annular walls cooperate with each other to define a group of openings,
wherein each of the openings in the group of openings communicates with the hollow interior of the body, and wherein the openings collectively define an open space of the filter core,
wherein the plurality of elements of the framework comprises:
a plurality of annual elements spaced apart from each other and arranged along the longitudinal axis;
and
a plurality of axial elements spaced apart from each other and arranged along the longitudinal axis about a diameter of the body, each of the axial elements connected to one or more of the annular elements;
wherein each of the axial elements has a transverse cross-section that is transverse to the longitudinal axis that has a T-shape and that has a first end connected to the first annular wall, and a second end connected to the second annular wall, wherein a bottom portion of the T-shape extends toward the hollow interior of the body;
wherein each of the annular elements has a transverse cross-section that is parallel to the longitudinal axis that has a T-shape, wherein a bottom portion of the T-shape extends away from the hollow interior of the body;
wherein the T-shape of the plurality of axial elements and the plurality of annular elements are configured to provide strength and rigidity to the body.

10 more elements

A filter assembly, comprising:

a filter core extending along a longitudinal axis, comprising:
a body having a cylindrical shape that defines a hollow interior, the body comprises:
a first solid annular wall disposed proximate a first end of the body;
a second solid annular wall disposed proximate a second end of the body such that the second solid annular wall is axially spaced apart from the first solid annular wall, and the second solid annular wall and the first solid annular wall extending axially toward each other;
and
a framework connected to the first solid annular wall and the second solid annular wall, wherein the framework and the first and second solid annular walls cooperate with each other to define a group of openings,
wherein each of the openings in the group of openings communicates with the hollow interior of the body, and wherein the openings collectively define an open space of the filter core;
and
a filter medium wrapped around the filter core;
wherein the framework includes a plurality of axial elements and a plurality of annular elements;
wherein the plurality of annular elements are spaced apart from each other and arranged along the longitudinal axis and the plurality of axial elements are spaced apart from each other and arranged about the plurality of annular elements along the longitudinal axis;
wherein each annular elements has a transverse cross-section that is parallel to the longitudinal axis that has a T-shape with a bottom of the T-shape extending away from the hollow interior of the body.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/756,747Filed 27 Sep 2016 · us provisional application
Priority: 30 Sep 2015
Published: US 2018/0250615 A16 Sep 2018
Granted: 8 Sep 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

B01D 27/08
Cartridge filters of the throw-away type: construction of the casing
B01D 29/111
With bag, cage, hose, tube, sleeve or like filtering elements: making filtering elements
B01D 29/216
With corrugated, folded or wound sheets: with wound sheets
B01D 29/96
Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00;…: in…

Family

Application62/235,295Us provisional application · filed 30 Sep 2015
US 2018/0250615 A1Pre-grant publication · published 6 Sep 2018
US 10,765,973 B2This patent

From the US filing history. Foreign family members aren’t listed.

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