Continuous process for producing ultrasonically welded air filte

Details Continuous process for producing ultrasonically welded air filte Continuous process for producing ultrasonically welded air filte

1991-12-20

1993-06-01

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 731, 156 734, 156166, 156176, 156250, 156269, 156290, 156292, 156324, 264 23, 53409, 53450, 55379, 55382, 55486, 55487, 55DIG5, B32B 3116, B01D 4602

Patent

active

052156095

ABSTRACT:
A method for continuously producing air filters made from synthetic materials is described, wherein an essentially continuous length of filter material is passed through a series of ultrasonic welding means to form a pocket into which a frame can be inserted. The pocket is then ultrasonically welded closed. Individual filters are then cut from the length of filter material. The process may also be used to create synthetic bag filters.

REFERENCES:
patent: 3727769 (1973-04-01), Scholl
patent: 4080185 (1978-03-01), Richter et al.
patent: 4150959 (1979-04-01), Bielak
patent: 4356011 (1982-10-01), Day et al.
patent: 4449993 (1984-05-01), Bergeron

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