Three-part end cap and filter element including same

• US 9,808,744 B2
• Filed: 12/27/2013
• Issued: 11/07/2017
• Est. Priority Date: 01/04/2013
• Status: Active Grant

• Current Assignee: Baldwin Filters Incorporated (Parker-Hannifin Corporation)
• Original Assignee: Baldwin Filters Incorporated (Parker-Hannifin Corporation)
• Inventors: Krull, Timothy L.
• Primary Examiner(s): ORME, PATRICK JAMES
• Application Number:
  US14/142,077
• Publication Number:
  US 20140190880A1
• Time in Patent Office: 1,411 Days
• CPC Class Codes: B01D 2201/295 with projections extending in a radial outward direction, e.g. for use as a guide, spacing means
• CPC Class Codes: B01D 2201/347 Radial sealings
• CPC Class Codes: B01D 2201/4053 using keys
• CPC Class Codes: B01D 2271/02 Gaskets, sealings
• CPC Class Codes: B01D 29/111 Making filtering elements
• CPC Class Codes: B01D 29/114 arranged for inward flow filtration B01D29/15, B01D29/33 take precedence
• CPC Class Codes: B01D 29/21 with corrugated, folded or wound sheets
• CPC Class Codes: B01D 29/96 in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters B01D29/09, B01D29/70 take precedence
• CPC Class Codes: B01D 46/2414 End caps including additional functions or special forms
• CPC Class Codes: Y10T 29/49904 Assembling a subassembly, then assembling with a second subassembly

Abstract

A multi-component end cap is provided. The multiple components combine to form one or more seal carriers where each seal carrier is formed in part by at least two different ones of the components. Methods of manufacturing an end cap having multiple components are also provided.

Claims

1. An end cap for a filter element comprising:

a first annular component;

a second annular component secured to the first component, the first and second annular components defining a radially directed flow path therebetween;

an outer seal defining a radially outward directed sealing surface and a secondary sealing surface;

an outer seal carrier defined in part by the first annular component and in part by the second annular component, the outer seal carrier axially securing the outer seal therein and configured to expose the radially outward directed sealing surface of the outer seal, the outer seal carrier defining a first sealing surface, the secondary sealing surface of the outer seal sealingly contacting the first sealing surface of the outer seal carrier;

further comprising;

at least one axially extending lock detent extending axially outward from a top side of the first annular component;

at least one housing key configured to secure the second annular component to a filter housing and prevent angular rotation between the second annular component and the filter housing;

a clocking arrangement between the first and second annular components angularly locating the at least one axially extending lock detent relative to the at least one housing key;

at least one radially outward extending ejection tab secured to the first annular component;

wherein the clocking arrangement between the first and second annular components angularly locates the at least one radially outward extending ejection tab relative to the at least one housing key during assembly; and

wherein the clocking arrangement is positioned radially inward of the outer seal carrier.

2. The end cap of claim 1, wherein the outward directed sealing surface of the outer seal extends radially outward further than the second annular component.

3. The end cap of claim 1, wherein the first and second annular components are ultrasonically welded to one another.

4. The end cap of claim 1, wherein the outer seal carrier is a U-shaped groove that has a mouth that opens in a radially outward directed direction, the U-shaped groove being formed by an axially extending flange and a radially outward extending flange of the first annular component and a radially outward extending flange of the second annular component.

5. The end cap of claim 4, wherein the radially outward extending flange or the axially extending flange of the first annular component provides the first sealing surface.

6. The end cap of claim 4, wherein the radially outward extending flange of the second annular component is an annular flange having a first inner diameter, the axially extending flange of the first annular component being axially received within the radially outward extending flange of the second annular component.

7. The end cap of claim 6, wherein the axially extending flange of the first annular component includes a stepped region defining an axial abutment, the radially outward extending flange of the second annular component axially abutting the axial abutment.

8. The end cap of claim 1, wherein:

the first annular component includes a first central aperture bound by an annular disk portion;

the second annular component includes a second central aperture bound by an annular disk portion;

the radially directed flow path being formed between the annular disk portions of the first and second annular components.

9. The end cap of claim 1, wherein the outer seal carrier is formed in part between a radially outward extending flange of the first annular component and a radially outward extending flange of the second annular component, the outer seal carrier has a mouth that opens in a radially outward directed direction to allow for insertion of the outer seal.

10. The end cap of claim 1, further comprising:

an inner seal defining a radially inward directed sealing surface and a secondary sealing surface;

a spacer positioned between the first and second annular components,

an inner seal carrier defined in part by the first annular component and in part by the spacer, the inner seal carrier axially securing the inner seal therein and configured to expose the radially inward directed sealing surface of the inner seal, the inner seal carrier defining a second sealing surface, the secondary sealing surface of the inner seal sealingly contacting the second sealing surface of the inner seal carrier.

11. The end cap of claim 10, wherein the spacer includes an annular body and a plurality of angularly spaced apart standoffs that extend radially outward, the standoffs being axially positioned between the first and second annular components and separating the first annular component from the second annular component, the first annular component, second annular component and standoffs defining at least one flow passage therebetween in fluid communication with the radially directed flow path formed between the first and second annular components.

12. The end cap of claim 10, wherein the inner seal carrier is formed in part between a radially inward extending flange of the first annular component and an axial distal end of the spacer, the inner seal carrier has a mouth that opens in a radially inward directed direction to allow for insertion of the inner seal.

13. The end cap of claim 1, wherein the first and second annular components are welded to one another.

14. The end cap of claim 1, wherein the outward directed sealing surface of the outer seal extends radially outward further than the outer seal carrier.