Claims
- 1-20. (Canceled)
- 21. A method of using a bowl-cartridge filter; the method including:
(a) orienting a cartridge filter in through an open end of a bowl;
(i) the cartridge filter including an extension of filter media between first and second opposite end caps; (ii) the cartridge filter having an interlock arrangement extending from one of the first and second end caps; (iii) the bowl having a bowl interlock arrangement;
(A) the bowl interlock arrangement including at least a first tooth including at least one bevel surface; (b) aligning the cartridge filter interlock arrangement and the bowl interlock arrangement to engage each other; and (c) rotating the bowl and cartridge filter relative to a filter head to operatively install the bowl and cartridge filter onto the filter head.
- 22. A method according to claim 21 wherein:
(a) the cartridge filter interlock arrangement extends from an outer surface of the second end cap; and (b) said step of rotating includes rotating the bowl interlock arrangement against the cartridge filter interlock arrangement extending from the outer surface of the second end cap.
- 23. A method according to claim 22 wherein:
(a) the bowl interlock arrangement tooth includes an end flank, a heel, and a toe; the toe including the at least one bevel surface; the bevel surface extending at least partially from the toe to the heel and being angled obliquely relative to the end flank; (b) said step of rotating includes engaging the at least one bevel surface of the tooth of the bowl interlock arrangement against the cartridge filter interlock arrangement extending from the outer surface of the second end cap.
- 24. A method according to claim 22 wherein:
(a) the cartridge filter interlock arrangement includes at least a first tooth extending from the outer surface of the second end cap; and (b) said step of rotating includes engaging the first tooth of the filter cartridge interlock arrangement against the first tooth of the filter bowl interlock arrangement.
- 25. A filter cartridge for use in a bowl-cartridge filter; the bowl-cartridge filter configured for operable installation onto a filter head by rotation in a first direction and removal from the filter head by rotation in an opposite, second direction; the bowl-cartridge filter including a bowl and a cartridge filter for selective mounting in and removal from the bowl; the filter cartridge comprising:
(a) an extension of filter media; said extension having a first end and an opposite second end; (b) a first end cap secured to said extension of filter media at said first end; and (c) a second end cap secured to said extension of filter media at said second end; said second end cap including an outer surface, and a filter cartridge interlock arrangement;
(i) said filter cartridge interlock arrangement including at least 3 teeth; each of said teeth being a five-sided polygon.
- 26. A filter cartridge according to claim 25 wherein:
(a) each of said teeth are house-shaped.
- 27. A filter cartridge according to claim 26 wherein:
(a) said extension of filter media is cylindrical; (b) said filter media comprises cellulose; and (c) said filter media is bonded to said first and second end caps by a urethane potting.
- 28. A filter cartridge according to claim 25 wherein:
(a) each of said teeth include:
(i) a first end flank, a second end flank, a side flank, a heel, and a toe;
(A) each of the first end flanks and second end flanks extending from a respective heel to a respective toe; (2) each of the side flanks extending from a respective heel to a respective toe and intersecting respective first and second end flanks; and (3) each of the toes including a first bevel surface and a second bevel surface; the first bevel surface extending from the first end flank; and the second bevel surface extending from the second end flank.
- 29. A filter cartridge according to claim 25 wherein:
(a) said second end cap includes an outer surrounding wall and an end wall;
(i) said end wall defining an axial surface; (ii) said outer surrounding wall defining an annular portion;
(A) each of said axial surface and said annular portion comprising a portion of said second end cap outer surface.
- 30. A filter cartridge according to claim 29 wherein:
(a) each of said teeth extends from said annular portion.
- 31. A filter cartridge according to claim 30 wherein:
(a) there are at least 4 teeth evenly spaced from each other and each extending from the annular portion.
- 32. A filter cartridge according to claim 25 further including:
(a) an inner liner supporting the extension of filter media.
- 33. A bowl-cartridge filter arrangement configured for operable installation onto a filter head by rotation in a first direction and removal from the filter head by rotation in an opposite, second direction; the bowl-cartridge filter arrangement comprising:
(a) a filter bowl having an open end, a closed end defining a bottom, and an interior surface; said filter bowl including a filter bowl interlock arrangement extending from said filter bowl interior surface and a projection extending from the bottom;
(i) said filter bowl interlock arrangement including at least a first tooth and a second tooth;
(A) each of the first tooth and second tooth extending from the interior surface and being spaced from the projection; (b) a disposable cartridge filter operably mounted in and selectively removable from the bowl; the filter cartridge comprising:
(i) an extension of filter media; said extension having a first end and an opposite second end; (ii) a first end cap secured to said extension of filter media at said first end; and (iii) a second end cap secured to said extension of filter media at said second end; said second end cap including an outer surface, a filter cartridge interlock arrangement extending from said outer surface; and said second end cap defining a recess;
(A) said bowl projection being received by said second end cap recess; (B) said filter cartridge interlock arrangement including at least 2 teeth; each of said filter cartridge interlock arrangement teeth being at least a five-sided polygon; (C) said filter cartridge interlock arrangement engaging said first and second tooth of said filter bowl interlock arrangement, when the bowl-cartridge filter is rotated in the second direction to remove the bowl-cartridge filter from the filter head.
- 34. A bowl-cartridge filter arrangement according to claim 33 wherein:
(a) said bowl includes a threaded region adjacent to said open end for releasable attachment to a filter head.
- 35. A bowl-cartridge filter arrangement according to claim 33 wherein:
(a) each of said filter cartridge interlock arrangement teeth is house-shaped.
- 36. A bowl-cartridge filter arrangement according to claim 33 wherein:
(a) said filter bowl interlock arrangement includes at least 4 teeth; and (b) said filter cartridge interlock arrangement includes at least 4 teeth.
- 37. A bowl-cartridge filter arrangement according to claim 33 wherein:
(a) said filter bowl interlock arrangement teeth has a same shape as each of said filter cartridge interlock arrangement teeth.
- 38. A bowl-cartridge filter arrangement according to claim 33 wherein:
(a) there is same number of filter bowl interlock arrangement teeth as filter cartridge interlock arrangement teeth.
Parent Case Info
[0001] This application claims priority under 35 U.S.C. § 119(e) to provisional application, Serial No. 60/280,786, filed Apr. 2, 2001. Application 60/280,786 is incorporated by reference herein.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60280786 |
Apr 2001 |
US |
Continuations (1)
|
Number |
Date |
Country |
Parent |
10109810 |
Mar 2002 |
US |
Child |
10867913 |
Jun 2004 |
US |