Producing method of laminated filter

Details Producing method of laminated filter Producing method of laminated filter

2005-06-01

2009-10-06

Crispino, Richard (Department: 1791)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S206000, C156S201000, C156S208000, C156S462000, C210S493100, C210S493500, C055S485000, C055S521000

Reexamination Certificate

active

07597773

ABSTRACT:
The present invention relates to a producing method of a laminated filter that carries out a corrugating operation and an adhering operation of filter media in the same step. A corrugation forming apparatus (20) sandwiches first and second filter media (12, 14) in their superposed state, and heats and presses the first and second filter media (12, 14) at the softening temperature of the second filter medium (14) to corrugate the filter media (12, 14), and thermally adheres the first and second filter media (12, 14) to each other. With this, it is possible to carry out the corrugating operation and the adhering operation of the first and second filter media (12, 14) in the same step.

REFERENCES:
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patent: 4268290 (1981-05-01), Barrington
patent: 5089202 (1992-02-01), Lippold
patent: 198 40 231 (2000-03-01), None
patent: A 55-18293 (1980-02-01), None
patent: A 64-18414 (1989-01-01), None
patent: A 5-285326 (1993-11-01), None
patent: A 11-290624 (1999-10-01), None

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