Filter housing that accepts both single open end o-ring and double open end filter elements

Patent metadata

Field	Value
Publication number	US-12030004-B2
Application number	US-201816209745-A
Country	US
Kind code	B2
Filing date	Dec 4, 2018
Priority date	Dec 4, 2017
Publication date	Jul 9, 2024
Grant date	Jul 9, 2024

Abstract

A housing assembly, portable filter system using the housing assembly and methods of mounting a filter element in a housing assembly are provided. The housing assembly is usable with filter elements of different types. The housing assembly includes a housing body having an open end and being attached to a filter head. The filter head includes a first housing sealing interface configured to sealingly mate with a filter element of the first type and a second housing sealing interface configured to sealingly mate with a filter element of the second type. A cover member removably attaches to the housing body and includes a third housing sealing interface configured to sealingly mate the filter element of the second.

First claim

What is claimed is:

1. A filter housing assembly for use with a first type of filter element having a first sealing interface at a first end of a first tube of filter media and alternatively for use with a second type of filter element having a second sealing interface at a first end of a second tube of filter media and having a third sealing interface at a second end of the second tube of filter media, the first sealing interface being configured differently than the second sealing interface, the filter housing assembly comprising:
a housing body extending axially between a first end and an open second end, the housing body defining a filter element mounting cavity;
a filter head being at the first end of the housing body, the filter head including:
a first housing sealing interface configured to sealingly mate with a first sealing interface when a filter element of the first type is located within the filter element mounting cavity;
a second housing sealing interface configured to sealingly mate with a second sealing interface when a filter element of the second type is located within the filter element mounting cavity; and
a cover member removably attachable to the second end of the housing body, the cover member including a third housing sealing interface configured to sealingly mate with a third sealing interface when the filter element of the second type is located within the filter element mounting cavity.

2. The filter housing assembly of claim 1 , wherein the first and second housing sealing interfaces are provided by a first annular wall, one of the first and second housing sealing interfaces being provided by a radially directed surface of the first annular wall, the other one of the first and second housing sealing interfaces being provided by an axially facing annular surface of the first annular wall, the axially facing annular surface axially facing the cover member.

3. The filter housing assembly of claim 2 , wherein the third housing sealing interface is an axially facing surface provided by the cover member axially facing the first end.

4. The filter housing assembly of claim 3 , wherein the third housing sealing interface is provided by an annular rib projecting axially towards the filter head.

5. The filter housing assembly of claim 2 , wherein the first housing sealing interface is provided by the radially directed surface of the first annular wall and the radially directed surface of the first annular wall is a radially inward directed surface.

6. The filter housing assembly of claim 5 , wherein:
a first port is provided by a second annular wall that is concentric with the first annular wall;
the first and second annular walls defining an annular channel radially therebetween; and
the radially directed surface radially faces inward toward the second annular wall.

7. The filter housing assembly of claim 6 , wherein the first and second housing sealing interfaces surround, at least part of, the first port.

8. The filter housing assembly of claim 5 , wherein the axially facing annular surface has an inner diameter of between about 1.7 and 1.8 inches.

9. The filter housing assembly of claim 8 , wherein the axially facing annular surface of the first annular wall that provides the second housing sealing interface is dimensioned to contact a second sealing interface of a filter element of the second type having an inner diameter of 1.25 inches and an outer diameter of 2.5 inches.

10. The filter housing assembly of claim 5 , wherein the second housing sealing interface is provided by a tapered end portion of the first annular wall.

11. The filter housing assembly of claim 1 , wherein:
the housing body provides a threaded region and a radially inward directed annular sealing surface having a first axial dimension;
the cover member has an axially extending neck that is received axially within the second end of the housing body, the neck has a threaded region configured to engage the threaded region of the housing body, the neck carrying a radially directed cover seal member;
the radially directed cover seal member is radially engageable with the radially inward directed annular sealing surface along the first axial dimension such that the axial position of the cover member may be adjusted relative to the housing body to accommodate different length filter elements within the housing body with the radially inward directed annular sealing surface remaining in sealing engagement with the radially directed cover seal member.

12. The filter housing assembly of claim 11 , wherein the axial position of the cover member is adjustable by at least 0.125 inches relative to the housing body with the radially inward directed annular sealing surface remaining in sealing engagement with the radially directed cover seal member.

13. The filter housing assembly of claim 11 , wherein:
the housing body is provided by an axially extending annular pipe extending between first and second ends and an annular collar member;
the first end is adjacent the filter head and the second end of the annular pipe is attached to the annular collar member, the annular collar member defining the open second end of the housing body; and
the cover member removably attaches to the collar member.

14. The filter housing assembly of claim 1 , wherein the housing body includes a radially extending projection defining an axial abutment; and
the radially extending projection and axial abutment are axially offset from the open second end toward the first end.

15. A method of mounting a filter element in a filter housing assembly, the method comprising:
inserting a filter element into a filter housing assembly according to claim 1 , the filter element being of the first type or of the second type;
sealingly engaging the filter element to the filter head, which includes:
engaging the first sealing interface with the first housing sealing interface if the filter element is of the first type;
engaging the second sealing interface with the second housing sealing interface if the filter element is of the second type; and
attaching the cover member to the housing body to close the second end of the housing body.

16. The method of claim 15 , further comprising engaging the third housing sealing interface with the third sealing interface if the filter element is of the second type.

17. The method of claim 15 , wherein the first housing sealing interface is left unused if the filter element is of the second type and the second housing sealing interface is left unused if the filter element is of the first type.

18. The method of claim 15 , wherein the filter housing assembly is located within a containment enclosure of a fluid filtering apparatus, the containment enclosure defining an enclosed volume defined at least in part by a first sidewall, the first sidewall including a first access opening that cooperates with the open second end such that the filter element mounting cavity is accessible from exteriorly of the containment enclosure through the first access opening and the open second end; and
the step of inserting a filter element into the filter housing assembly includes passing the filter element through both the access opening and the open second end.

19. The method of claim 15 , wherein the cover member is removably attached to the housing body during the step of attaching the cover member to the housing body to close the second end of the housing body.

20. The filter housing of claim 1 , wherein the housing body and the filter h

Assignees

• Yoshimura Steven T
• Parker Hannifin Corp

Inventors

• Yoshimura Steven T

Classifications

• B01D35/30

  Filter housing constructions · CPC title

• B01D2201/301

  Details of removable closures, lids, caps, filter heads · CPC title

• B01D35/301 Primary

  Constructions of two or more housings (B01D35/12 takes precedence) · CPC title

• B01D29/23

  arranged for outward flow filtration · CPC title

• B01D2201/291

  End caps · CPC title