Tufting process and apparatus for manufacturing weatherstripping

Details Tufting process and apparatus for manufacturing weatherstripping Tufting process and apparatus for manufacturing weatherstripping

1987-06-19

1989-07-18

McCamish, Marion C.

Stock material or miscellaneous articles

Pile or nap type surface or component

156 72, 156435, 428 92, 428 95, B32B 3300

Patent

active

048492701

ABSTRACT:
Weatherstripping is produced continuously by two or more spaced apart tufting heads, which may be operating at different stitch rates. The or each strip of weatherstripping comprises at least two rows of tufts sequentially inserted by two tufting heads. Heated dies may be located between the tufting heads for transforming rows of tufts inserted by the first tufting head at least partially into film to form barrier fins. The knuckles of the tufts are flattened, a secondary backing applied, and then individual strips of weatherstripping separated by ultrasonically slitting, all as a continuous process enabling weatherstripping of various constructions to be efficiently and economically produced by tufting.

REFERENCES:
patent: 2994929 (1961-08-01), Kessler
patent: 3585948 (1971-06-01), Cobble
patent: 3616137 (1971-10-01), Horton
patent: 4164599 (1979-08-01), Kessler
patent: 4548849 (1985-10-01), Garnett

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