Water filtration assembly

(54) WATER FILTRATION ASSEMBLY

(75) Inventor: James D. Jackovich, Clinton Township, MI (US)

(73) Assignee: Talhin/T Corp., Consumer Products Division, Oldcastle (CA)

( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.

(21) Appl. No.: 09/333,089

(22) Filed: Jun. 15, 1999

(51) Int. CI.7 B01D 27/08; B01D 27/14;

B29C 65/00

(52) U.S. CI 210/323.2; 210/323.1;

210/445; 210/446; 210/448; 210/451; 210/452; 210/455; 264/209.1; 264/248; 264/DIG. 48;

264/DIG. 76

(58) Field of Search 210/323.2, 323.1,

210/455, 451-453, 445, 282, 433.1, 435, 446-448, 456; 156/60, 69, 73.1, 73.5; 264/DIG. 48, DIG. 76, 209.1, 248; 55/497-498, 503

(56) References Cited

U.S. PATENT DOCUMENTS

616,224 * 12/1898 Cullison . 3,003,500 * 10/1961 Barton et al. .

3,295,686 * 1/1967 Krueger .

3.782,083 * 1/1974 Rosenberg .

3,954,625 * 5/1976 Michalski 210/445

4,170,056 * 10/1979 Meyst et al. .

4.528,097 * 7/1985 Ward 210/353

4,558,957 * 12/1985 Mock et al. .

4,944,977 * 7/1990 Shantz et al. .

5.116,502 * 5/1992 Ferguson 210/266

5,277,805 * 1/1994 Ferguson 210/266

5,833,852 * 11/1998 Yoon 210/447

5.891,333 * 4/1999 Ferguson 210/232

5,965,019 * 10/1999 Olsen et al 210/331

FOREIGN PATENT DOCUMENTS

3429634A1 * 2/1986 (DE) . 9-267092 * 10/1997 (IP) .

* cited by examiner

Primary Examiner—-W. L. Walker

Assistant Examiner—Marianne Ocampo

(74) Attorney, Agent, or Firm—Howard & Howard

(57) ABSTRACT

A water filtration assembly (10) includes a first end cap (34) covering the first end of a housing (12) and a second end cap (36) covering the second end of the housing (12). The end surface (40) of each end cap (34 and 36) has a L-shaped cap recess therein with an axial leg (42) and a transverse leg (44) extending about the end face. A projection (30) at the first end of the housing (12) is disposed in engagement with the cap recess of the first end cap (34) as the end surface (40) of the first end cap (34) abuts the recess end surface (28) at the first end of the housing (12). In the same fashion, a projection (30) at the second end of the housing (12) is disposed in engagement with the cap recess of the second cap (36) as the end surface (40) of the second cap (36) abuts the recess end surface (28) at the second end of the housing (12). The end caps (34 and 36) are formed with a two sided shoulder (46) filling the corner between the axial (42) and transverse (44) legs of the cap recess. The projections (30) at the ends of the housing (12) are inserted into engagement with the cap recesses of the caps (34 and 36) as the distal ends (32) of the projections (30) abut the shoulders (46) in the cap recesses at the ends of the housing (12). The respective shoulders (46) are melted into a fusion bond between the distal end (32) of each projection (30) and each of the transverse legs (44) of the cap recesses. During this fusion, flash (48) is created and extends into the filter chamber. When the end caps (34 and 36) are fused in fluid tight engagement with the housing (12), the exterior surface (38) of each of the end caps (34 and 36) is spaced outwardly of the outer surface (14) of the housing (12) to define a step (x) between the outer surface (14) of the housing (12) and the exterior surface (38) of each of the end caps (34 and 36).

15 Claims, 4 Drawing Sheets