Liquid purification or separation – With repair or assembling means
Reexamination Certificate
2006-05-09
2006-05-09
Lithgow, Thomas M. (Department: 1724)
Liquid purification or separation
With repair or assembling means
C210S495000, C210S497010, C210S499000, C210S767000
Reexamination Certificate
active
07041217
ABSTRACT:
A filter ring includes a first filter member including a first end portion and a second filter member including a second end portion. The filter ring also includes at least one snap latch mechanism for detachably engaging the first end portion with the second end portion such that the first and second filter members cooperate to define a generally annular shape having a central opening. The first end portion includes at least one key configured to be positioned within at least one keyway defined by the second end portion for inhibiting disengagement of the snap latch mechanism when the snap latch mechanism is detachably engaging the first end portion with the second end portion.
REFERENCES:
patent: 3633757 (1972-01-01), Madern
patent: 4014796 (1977-03-01), Sugiyama et al.
patent: 4207189 (1980-06-01), Geuenich
patent: 4690757 (1987-09-01), Mathus et al.
patent: 4836923 (1989-06-01), Popoff et al.
patent: 5169524 (1992-12-01), Meiritz et al.
patent: 5200067 (1993-04-01), Sann
patent: 5209845 (1993-05-01), Sims
patent: 5308485 (1994-05-01), Griffin et al.
patent: 5482621 (1996-01-01), Nurse
patent: 5807483 (1998-09-01), Cassidy et al.
patent: 5820754 (1998-10-01), Cassidy et al.
patent: 2002-285966 (2002-10-01), None
Altwies Eugene W
Berna James R
Close Jeffery A
Filtertek Inc.
Harness & Dickey & Pierce P.L.C.
Lithgow Thomas M.
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