Easy moulding filter element support tube

Details Easy moulding filter element support tube Easy moulding filter element support tube

2007-12-04

2007-12-04

Menon, Krishnan (Department: 1723)

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

C210S485000, C210S487000, C264S328100

Reexamination Certificate

active

11239667

ABSTRACT:
A filter element support tube has a pair of axially extending spines and first and second sets of oppositely laterally extending half-rings axially offset from each other. The support tube is efficiently manufacturable, and desirably provides a constant diameter along its axial length.

REFERENCES:
patent: 493791 (1893-03-01), Schurig
patent: 2843269 (1958-07-01), Dudinec
patent: 3746595 (1973-07-01), Leason
patent: 4748841 (1988-06-01), Mezger et al.
patent: 5980744 (1999-11-01), Gagnon et al.
patent: 6103119 (2000-08-01), Clements et al.
patent: 6478959 (2002-11-01), Morgan et al.
patent: 414336 (1991-02-01), None
patent: 2004-167805 (2004-06-01), None

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