Filter alignment device

Patent metadata

Field	Value
Publication number	US-10159919-B2
Application number	US-201414451524-A
Country	US
Kind code	B2
Filing date	Aug 5, 2014
Priority date	Feb 9, 2006
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

A removable device that ensures that the port of a filter cartridge is liquid tightly sealed to the port of the head of a housing even when there is insufficient room beneath the bowl to allow one to physically secure the cartridge port to the head port before securing the head and bowl together. The invention uses one or more removably attached alignment devices to center the cartridge in the bowl and maintain it at a height sufficient to ensure that the two ports are aligned and liquid tightly sealed to each other when the bowl and head are mated together.

First claim

What is claimed:

1. A removably attached alignment device suitable for seating a filter cartridge within a housing bowl, the filter cartridge having a porous cartridge body, a porous core, a filter material between the body and the core, a first endcap being liquid tight sealed to a first end of the body and a first end of the core, a second endcap having an opening alignable with the core, the second endcap being liquid tight sealed to a second end of the body and the opening being liquid tight sealed to the core such that fluid entering the porous cartridge body must flow through the filter material before reaching the core and must flow through the core before reaching the opening; the alignment device comprising a first removably attached alignment device secured only to an outer surface of the body adjacent the first endcap of the filter cartridge and a second removably attached alignment device secured only to a portion of the body of the filter cartridge at a location intermediate between the first and second ends of the filter cartridge; wherein the first and second alignment devices comprise a height sufficient to cause the filter cartridge to seat in a housing head and a width sufficient to center the filter cartridge within the housing bowl, when assembled and wherein the first alignment device has a support ring having an interior rim and an interior and exterior diameter lying in a plane of the ring, wherein the interior diameter of the interior rim is less than the outer dimension of the first endcap of the filter cartridge, the support ring comprises at least one member projecting from the plane of the ring wherein the member comprises a lip which interlocks with the filter cartridge, and the second alignment device having a support ring having an interior and exterior diameter lying in a plane of the ring, wherein the interior diameter is greater than the diameter of the filter cartridge, and the exterior diameter is less than the diameter of the housing structure; and wherein the support ring comprises at least one member projecting from the plane of the ring wherein the member comprises a lip which interlocks with the filter cartridge, such that the alignment device is only attached to an outer surface of the filter cartridge and the exterior diameter of the alignment device merely centers the filter cartridge within the housing structure.

2. The device of claim 1 wherein when the filter cartridge with the first and second alignment devices is placed into a bowl-type housing, the filter cartridge is centered within the bowl and is of a height sufficient to ensure a liquid tight mating of the opening of the second endcap with a corresponding opening in the housing by the first and second alignment devices.

3. The device of claim 1 , wherein the first alignment device being of a height sufficient to cause the opening of the second endcap to liquid tight seal into an opening of a housing head when the head and bowl are mated.

4. The device of claim 1 , wherein the member of each of the first and second alignment devices further comprises a first and a second shoulder, and wherein the first shoulder extends obliquely from the support ring and the second shoulder extends perpendicularly from the first shoulder and terminates with the lip.

5. An alignment device suitable for mounting a filter cartridge in a housing structure, the filter cartridge having a body with a first end and a second end, the first end having a first endcap liquid tightly sealed to the first end of filter cartridge and the second end having a second endcap containing a port to an interior of the filter cartridge sealed to the second end of the filter cartridge wherein the alignment device comprises a first and a second removably attached alignment device, the first alignment device being secured to an outer surface of the filter cartridge adjacent the first endcap of the filter cartridge, the first alignment device having a support ring having an interior rim and an interior and exterior diameter lying in a plane of the ring, wherein the interior diameter of the interior rim is less than the outer dimension of the first endcap of the filter cartridge, the support ring comprises at least one member projecting from the plane of the ring wherein the member comprises a lip which interlocks with the filter cartridge, such that the alignment device is only attached to an outer surface of the filter cartridge, the second alignment device being secured to an outer surface of the filter cartridge at a location between the first endcap and the second endcap, the second alignment device having a support ring having an interior and exterior diameter lying in a plane of the ring, wherein the interior diameter is greater than the diameter of the filter cartridge, and the exterior diameter is less than the diameter of the housing structure; and wherein the support ring comprises at least one member projecting from the plane of the ring wherein the member comprises a lip which interlocks with the filter cartridge, such that the alignment device is only attached to an outer surface of the filter cartridge and the exterior diameter of the alignment device merely centers the filter cartridge within the housing structure.

6. The device of claim 5 wherein the member of each of the first and second alignment devices further comprises a first and a second shoulder.

7. The device of claim 5 , wherein the member of each of the first and second alignment devices further comprises a first and a second shoulder, and wherein the first shoulder extends obliquely from the support ring and the second shoulder extends perpendicularly from the first shoulder and terminates with the lip.

Assignees

• Emd Millipore Corp

Inventors

• Almasian Joseph
• Perreault Jeremy
• Szyk Martin

Classifications

• B01D35/306 Primary

  Filter mounting adapter · CPC title

• B01D29/15

  arranged for inward flow filtration · CPC title

• B01D27/08

  Construction of the casing · CPC title

• B01D2201/302

  having inlet or outlet ports · CPC title

• B01D2201/4046

  Means for avoiding false mounting of different parts · CPC title