Base receptacle for filter cartridge incorporating a...

Details Base receptacle for filter cartridge incorporating a... Base receptacle for filter cartridge incorporating a...

2005-06-28

2005-06-28

Savage, Matthew O. (Department: 1724)

Liquid purification or separation

With repair or assembling means

C210S249000, C210S443000

Reexamination Certificate

active

06911143

ABSTRACT:
A filter assembly employs radially inwardly and outwardly displaced portions of a peripheral roll seam on the cartridge as components of a cartridge compatibility matrix. A substantially annular space, the radial configuration of which varies with the convoluted roll seam, is defined between the roll seam and a cylindrical wall of the cartridge end cap. The base includes an axially projecting receptacle wall that terminates in a coded lip to define a receptacle for receiving the cartridge end cap. The cartridge mounting system requires axial reception of the coded lip into the substantially annular space of the filter cartridge. The coded lip is configured to block reception and mating of any filter cartridge whose roll seam defines a substantially annular space of incompatible radial configuration. The number, configuration and location of inwardly and outwardly displaced portions of the roll seam may be varied to provide a variety of unique compatibility matrices.

REFERENCES:
patent: 5035797 (1991-07-01), Janik
patent: 5186829 (1993-02-01), Janik
patent: 5474676 (1995-12-01), Janik et al.
patent: 5766463 (1998-06-01), Janik et al.
patent: 5837137 (1998-11-01), Janik
patent: 6048455 (2000-04-01), Janik
patent: 6116658 (2000-09-01), Bohlen
patent: 6187188 (2001-02-01), Janik et al.
patent: 0 529 782 (1992-03-01), None
patent: 0 972 554 (2000-01-01), None
patent: 1 070 530 (2001-01-01), None
International Search Report PCT/US 03/33467, dtd. Oct. 21, 2003.

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