Liquid purification or separation – With repair or assembling means
Reexamination Certificate
2006-11-28
2006-11-28
Cecil, Terry K. (Department: 1723)
Liquid purification or separation
With repair or assembling means
C210S236000, C210S444000
Reexamination Certificate
active
07141163
ABSTRACT:
A filter cartridge (20) having an upper disc (22) joined to an upper end of a tubular filter medium (21) is positioned within a casing (11) having an upper closure cover (12). First coupling elements (31) joined to the cover (12) and second coupling elements (41) joined to the upper disc (22) project axially towards each another to achieve mutual snap-coupling. The first coupling elements (31) include axially-extending coupling teeth elastic in a radial direction, and the second coupling elements (41) include a cylindrical surface divided into identical sectors equal to the number of teeth (31), each sector includes a coupling region (43) for snap-engaging the coupling teeth (31) axially, and a disengagement region (44), positioned to the side of the coupling region (43), for releasing the coupling teeth (31) from their engagement with the coupling region (43) by rotating the cartridge (20) through a small angle relative to the upper cover (12).
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Browdy and Neimark PLLC
Cecil Terry K.
UFI Filters S.p.A.
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