Water filtration assembly

A water filtration housing assembly comprising;

• an elongated housing (12) extending axially and having an outer surface (14) surrounding at least one filter chamber extending between first and second open ends,
• said outer surface (14) having a housing recess (27) extending radially and axially thereunto adjacent each of said first and second ends of said housing (12) and extending about the periphery of each end to define a recess end surface (28) extending radially and a peripheral projection (30) extending axially to a distal end (32) from said recess end surface (28) at each end of said housing (12),
• a first end cap (34) covering said first end,
• a second end cap (36) covering said second end,
• each of said end caps having an end face with a periphery and a peripheral wall having an exterior surface (38) extending from said periphery of said end face to an end surface (40), said peripheral wall and said end face defining an interior cavity with a bottom and interior wall surfaces,
• said end surface (40) having a L-shaped cap recess therein with an axially extending axial leg (42) and a radially extending transverse leg (44) extending about said end face with said transverse leg (44) opening into said interior cavity,
• said projection (30) at said first end of said housing (12) being disposed in engagement with said cap recess of said first cap (34) as said end surface (28) of said first cap (34) abuts said recess end surface (28) at said first end of said housing (12),
• said projection (30) at said second end of said housing (12) being disposed in engagement with said cap recess of said second cap (36) as said end surface (40) of said second cap (36) abuts said recess end surface (28) at said second end of said housing (12), said exterior surface (38) of each of said end caps being spaced outwardly of said outer surface (14) of said housing (12) to define a step between said outer surface (14) of said housing (12) and said exterior surface (38) of each of said end caps, and a fusion bond between said distal end (32) of said peripheral projection and each of said transverse lens (44) of said cap recesses flash, and (48) disposed about said distal end (32) of said peripheral projection (30) extending into said filter chamber.

A method of fabricating a water filtration assembly comprising the steps of;

• forming an elongated housing (12) having an outer surface (14) surrounding at least one filter chamber extending between first and second open ends,
• forming a housing recess (27) in the outer surface (14) of the housing (12) adjacent each of the first and second ends of the housing (12) and extending about the periphery of each end to define a recess end surface (28) and a peripheral projection (30) extending to a distal end (32) from the recess end surface (28) at each end of the housing (12),
• forming a first end cap (34) for covering the first end,
• forming an outlet end cap for covering the second end,
• forming each end cap with an end face having a periphery and a peripheral wall having an exterior surface (38) extending from the periphery of the end face to an end surface (40) to define an interior cavity with a bottom and interior wall surfaces,
• forming a L-shaped cap recess in each end surface (40) with an axial leg (42) and a transverse leg (44) extending about the end face with the transverse leg (44) opening into the interior cavity,
• forming a two sided shoulder (46) filling the corner between the axial (42) and transverse (44) legs of the cap recess,
• inserting the projection (30) at the first end of the housing (12) into engagement with the cap recess of the first cap (34) as the distal end (32) of the projection (30) at the first end of the housing (12) abuts the shoulder (46) in the cap recess,
• inserting the projection (30) at the second end of the housing (12) into engagement with the cap recess of the second cap (36) as the distal end (32) of the projection (30) at the second end of the housing (12) abuts the shoulder (46) in the cap recess, and
• melting the respective shoulders (46) into a fusion bond between the distal end (32) of each projection (30) and each of the transverse legs (44) of the cap recesses.