Apparatus for producing layered sheet of thermoplastic fiber mat

Details Apparatus for producing layered sheet of thermoplastic fiber mat Apparatus for producing layered sheet of thermoplastic fiber mat

1990-05-08

1992-12-01

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With work feeding or handling means

156324, 156548, 156552, 156554, 156556, 156558, 156562, 242 755, 428189, B32B 3100

Patent

active

051677547

ABSTRACT:
A cohesive layered sheet of thermoplastic fiber material formed by two outer layers of material, each outer layer having a standard full width, and an inner layer made from strips of scrap material. The strips of scrap material each have a width substantially less than the standard full width and are arranged side-by-side so as to have a combined width approximately equal to a standard full width. The layers are ultrasonically bonded together so as to form a cohesive layered sheet. A method and apparatus are provided for manufacturing such a sheet.

REFERENCES:
patent: 1802814 (1928-11-01), Henderson
patent: 2424558 (1947-07-01), Delano

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