Method for the fabrication of a pleated filter

Details Method for the fabrication of a pleated filter Method for the fabrication of a pleated filter

2007-08-28

2007-08-28

Kim, John (Department: 1723)

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

C055S475000, C055S500000, C156S083000, C210S493100, C210S508000, C493S331000, C493S941000

Reexamination Certificate

active

10239550

ABSTRACT:
A filter is made by the folding of a filter media to pleats after the application of strings of glue thereon and the glue serves as distance elements and fixing for the filter media. The glue contains an expandable filler, that when heated expands to a larger size that is then permanent. When the glue has set the filter is heated and the filler expands and expands the filter pleats.

REFERENCES:
patent: 3025202 (1962-03-01), Morgan et al.
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patent: 4890444 (1990-01-01), Vander Giessen et al.
patent: 5071555 (1991-12-01), Enbom
patent: 5240479 (1993-08-01), Bachinski
patent: 6120633 (2000-09-01), LeMaster
patent: 0 377 419 (1990-07-01), None
patent: 0 377 420 (1990-07-01), None
patent: 0 643 115 (1994-03-01), None
patent: 0 948 986 (1999-10-01), None
patent: 6-057224 (1994-01-01), None

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