Liquid filter arrangement and methods

Patent metadata

Field	Value
Publication number	US-11654384-B2
Application number	US-202217845596-A
Country	US
Kind code	B2
Filing date	Jun 21, 2022
Priority date	Mar 2, 2016
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

A filter cartridge includes a threaded sleeve having a seal holder recess and seal member. The filter cartridge is for removably threading onto a filter head that includes threads for connection to the filter cartridge by way of the threaded sleeve. The filter head includes a ramp that engages the seal member to form a seal. The force needed to make the seal is a torque of less than 10 N-m.

First claim

What is claimed is:

1. A filter cartridge comprising:
(a) a housing;
(b) a filter media construction in the housing;
(c) a sleeve non-removably secured to an outside of the housing; the sleeve having a threaded section and holding a housing seal member;
wherein the sleeve includes a bevel surface between the base surface and the threaded section; the bevel surface has an axial length between the base surface and the threaded section of 0.7-2 mm
(i) the sleeve having a seal holder recess with a radially extending base surface and a recess wall; the base surface having a radial base length extending from the recess wall;

(d) an outwardly radially projecting rib adjacent to a first end of the sleeve forming a ceiling of the recess; the sleeve having a second end opposite of the first end; and
wherein the rib has a length less than 80% of the radial base length.

2. The filter cartridge of claim 1 wherein:
(a) the base surface is located at least 4 mm and no greater than 15 mm from an axial rim defining a mouth of the housing.

3. The filter cartridge of claim 1 wherein:
(a) the base surface is located at least 7 mm and no greater than 11 mm from an axial rim defining a mouth of the housing.

4. The filter cartridge of claim 1 wherein:
(a) the sleeve includes a bevel surface between the base surface and the threaded section; the bevel surface being angled relative to the threaded section at an angle between 10-50°.

5. The filter cartridge of claim 1 wherein:
(a) the sleeve includes a bevel surface between the base surface and the threaded section; the bevel surface being angled relative to the threaded section at an angle between 12-30°.

6. The filter cartridge of claim 1 wherein:
(a) the sleeve includes a bevel surface between the base surface and the threaded section; the bevel surface being angled relative to the threaded section at an angle between 13-17°.

7. The filter cartridge of claim 1 wherein:
(a) the bevel surface has an axial length between the base surface and the threaded section of 0.8-1.5 mm.

8. The filter cartridge of claim 1 wherein:
(a) the sleeve includes a radially extending stop member between the threaded section and the second end.

9. The filter cartridge of claim 8 wherein:
(a) the stop member is located at least 17 mm and no greater than 30 mm from an axial rim defining a mouth of the housing.

10. The filter cartridge of claim 8 wherein:
(a) the stop member is located at least 18 mm and no greater than 28 mm from an axial rim defining a mouth of the housing.

11. The filter cartridge of claim 8 wherein:
(a) the stop member projects radially outwardly a distance greater than any other portion of the sleeve.

12. The filter cartridge of claim 1 wherein:
(a) the filter media construction comprises a cylinder of pleated filter media secured between first and second end caps.

13. The filter cartridge of claim 12 wherein:
(a) a ring projects axially from the first end cap in a direction away from a remaining part of the filter media construction; and
(b) a first end cap seal member is held by the ring.

14. The filter cartridge of claim 13 wherein:
(a) the first end cap seal member projects radially outwardly from the ring.

15. The filter cartridge of claim 1 wherein:
(a) the filter media construction is fixed and non-removably mounted in the interior volume of the housing.

16. The filter cartridge of claim 1 wherein:
(a) the housing bottom includes a drain valve.

17. The filter cartridge of claim 1 wherein:
(a) the housing seal member projects radially outwardly farther than the rib.

18. A filter cartridge comprising:
(a) a housing; the housing having a surrounding wall defining an interior volume, an open mouth in communication with the interior volume and a bottom opposite of the mouth; the surrounding wall having an interior surface in communication with the interior volume and an opposite exterior surface;
(b) a filter media construction in the housing;
(c) a sleeve non-removably secured to an outside of the housing; the sleeve being threaded and holding a housing seal member;
wherein the sleeve includes a bevel surface between the base surface and the threaded section; the bevel surface has an axial length between the base surface and the threaded section of 0.7-2 mm
(i) the sleeve includes opposite first and second ends, the first end being adjacent the open mouth of the housing;
(ii) the wall of the housing overlapping the first end of the sleeve; and
(iii) the sleeve having a seal holder recess with a radially extending base surface and a recess wall; the base surface having a radial base length extending from the recess wall;

(d) an outwardly radially projecting rib adjacent to the first end of the sleeve forming a ceiling of the recess;
(i) the wall of the housing overlapping the projecting rib and being in extension along and against the exterior portion of the sleeve along the recess wall.

19. A filter assembly comprising the filter cartridge of claim 18 and further comprising:
(a) a filter head removably attached to the filter cartridge.

Assignees

• Donaldson Co Inc

Inventors

• Gustafson Michael J
• Joscher Kurt
• Harder David B
• Tucker Brian

Classifications

• B01D35/30

  Filter housing constructions · CPC title

• B01D2201/347

  Radial sealings · CPC title

• B01D2201/295

  with projections extending in a radial outward direction, e.g. for use as a guide, spacing means · CPC title

• B01D2201/303

  not arranged concentrically · CPC title

• B01D2201/4007

  Use of cam or ramp systems · CPC title