US 4,654,142 AGranted

Filtering system

AssigneeEverpure, Inc.

InventorsJack W. Thomsen, John W. Tadlock

Life of this patent

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Abstract

A filtering system for water treatment including a head member having fluid inlet and outlet ports, a bracket member adapted to be secured to stationary support means, the head member being secured to the bracket member, a disposable filter cartridge closed at one end and being equipped at its other end with a closure member, the closure member having inlet and outlet passages formed therein to communicate with the interior of said filter cartridge, the closure member portion of the filter cartridge being insertable into the head member, its inlet and outlet passages formed so as to communicate with the inlet and outlet ports in the head member, and coacting locking means formed on the head member and the bracket member to secure the filter cartridge in place during operation of the filter system and also permit easy insertion of the closure member into and withdrawal of the closure member from the head member.

Claims30

Dependent claims

A filter assembly comprising:

(a) a plate-like bracket member adapted to be supported on a supporting wall structure, said bracket member including annular opening means for receiving a closure member of a filter cartridge therethrough, said opening means including a pair of oppositely disposed bayonet openings,
(b) a head member attached to said bracket member for receiving a filter cartridge therein, said head member comprising an inverted cup-like structure having inlet and outlet ports in the wall thereof and adapted to have a filter cartridge secured therein,
(c) a filter cartridge including
(1) a pressure vessel closed at one end,
(2) a closure member sealingly disposed in the open end of said pressure vessel, said closure member including,
(a) an annular base portion which is fitted into and secured into the open end of said pressure vessel,
(b) an elongated cylindrical portion formed integrally with said base portion and adapted to be inserted into said head member in sealing engagement therewith,
(c) a pair of axially extending inlet and outlet passages formed in said elongated cylindrical portion,
(1) one of said passages being formed with a first communicating port in the wall of said cylindrical portion,
(2) the other of said passages being formed with a second communicating port in the wall of said cylindrical portion,
(3) said first and second communicating ports being in fluid communication with the inlet and outlet ports of said head member,
(d) a pair of radially extending bayonet locking lugs formed on the outer surface of said closure member and adapted to be aligned with said bayonet openings in said bracket member when the filter cartridge is inserted into or removed from the head member,
(3) filter means disposed within said pressure vessel between the inlet and outlet from said pressure vessel,
(4) said filter cartridge being positionable in said head member and rotatable to a secured position wherein the bayonet locking lugs coact with said plate-like bracket member and said head member to secure the filter cartridge in place against the fluid pressure of the system in which the filter assembly is disposed.

11 more elements

A filter assembly comprising:

(a) a plate-like bracket member adapted to be supported on a supporting wall structure,
(b) a head member attached to said bracket member for receiving a filter cartridge therein, said head member comprising
an inverted cup-like structure having inlet and outlet ports in the wall thereof and adapted to have a filter cartridge secured therein,
(c) a filter cartridge including
(1) a pressure vessel closed at one end,
(2) a closure member sealingly disposed in the open end of said pressure vessel, said closure member including,
(a) an annular base portion which is fitted onto and secured onto the open end of said pressure vessel,
(b) an elongated cylindrical portion formed integrally with said base portion and adpated to be inserted into said head member in sealing engagement therewith,
(c) a pair of axially extending inlet and outlet passages formed in said elongated cylindrical portion,
(1) one of said passages being formed with a first communicating port in the wall of said cylindrical portion,
(2) the other of said passages being formed with a second communicating port in the wall of said cylindrical portion,
(3) said first and second communicating ports being in fluid communication with the inlet and outlet ports of said head member,
(d) a pair of radially extending bayonet locking lugs oppositely disposed on the outer surface of said closure member,
(3) filter means disposed within said pressure vessel between the inlet to and outlet from said pressure vessel,
(4) means associated with said head member for coacting with said radially extending bayonet locking lugs for securing said filter cartridge in place in said head member against the fluid pressure of the system in which the filter assembly is disposed.

12 more elements

In a filter assembly the combination comprising:

(a) a head member adapted to be disposed in a fluid conduit and adapted to have a filter cartridge inserted thereinto, said head member comprising
a cup-like structure having an annular bore formed therein and inlet and outlet ports formed in the wall portion and communicating with said bore, and
circumferentially spaced stop means associated with said head member,
(b) a filter cartridge including
(1) a pressure vessel closed at one end,
(2) a closure member sealingly disposed in the open end of said pressure vessel, said closure member including,
(a) an annular base portion which is fitted onto and secured onto the open end of said pressure vessel,
(b) an elongated cylindrical portion formed integrally with said base portion and adapted to be inserted into said head member in sealing engagement therewith,
(c) a pair of substantially axially extending inlet and outlet passages formed in said elongated cylindrical portion
(1) one of said passages being formed with a first communicating port in the wall of said cylindrical portion,
(2) the other of said passages being formed with a second communicating port in the wall of said cylindrical portion,
(3) said first and second communicating ports being in fluid communication with the inlet and outlet ports of said head member,
(d) cooperating means on said head member and said closure member for aligning at least one of said ports in said head member and a corresponding port in said closure member, and wherein said cooperating means includes bayonnet locking lug means formed on said closure member which coacts with said stop means.

10 more elements

A filter assembly comprising:

(a) a plate-like bracket member adapted to be supported on a supporting wall structure, said bracket member including annular opening means for receiving a closure member of a filter cartridge therethrough, said opening means including a pair of oppositely disposed bayonet openings,
(b) a head member attached to said bracket member for receiving a filter cartridge therein, said head member comprising
an inverted cup-like structure having inlet and outlet ports formed therein and adapted to have a filter cartridge secured therein,
(c) a filter cartridge including
(1) a pressure vessel closed at one end,
(2) a closure member sealingly disposed in the open end of said pressure vessel, said closure member including,
(a) an annular base portion which is fitted into and secured into the open end of said pressure vessel,
(b) an elongated cylindrical portion formed integrally with said base portion and adapted to be inserted into said head member in sealing engagement therewith,
(c) a pair of axially extending inlet and outlet passages formed in said elongated cylindrical portion amd adapted for fluid communication with the inlet and outlet ports of said head member,
(d) a pair of radially extending bayonet locking lugs formed on the outer surface of said closure member and adapted to be aligned with said bayonet openings in said bracket member when the filter cartridge is inserted into or removed from the head member,
(3) filter means disposed within said pressure vessel between the inlet and outlet from said pressure vessel,
(4) said filter cartridge being positionable in said head member and rotatable to a secured position wherein the bayonet locking lugs coact with said plate-like bracket member and said head member to secure the filter cartridge in place against the fluid pressure of the system in which the filter assembly is disposed.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/798,948Filed 18 Nov 1985
Granted: 31 Mar 1987
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

B01D 24/14
The filtering material being held in a closed container: downward filtration, the container having distribution or collection headers or pervious…
B01D 27/02
Cartridge filters of the throw-away type: with cartridges made from a mass of loose granular or fibrous material
B01D 27/06
With cartridges made of a piece of unitary material, e.g. filter paper: with corrugated, folded or wound material
B01D 27/08
Cartridge filters of the throw-away type: construction of the casing