Method and apparatus for producing continuous band expandable an

Details Method and apparatus for producing continuous band expandable an Method and apparatus for producing continuous band expandable an

1990-02-14

1992-03-10

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156494, 156200, 156190, B31C 1300

Patent

active

050947052

ABSTRACT:
A method and apparatus for forming expandable and collapsible shielding material wherein adhesive is applied to one side of a flat tubular strip which is wound around support wheels, the adhesive bonds together successive layers of strip to form a continuous loop of stacked strip. During the winding of the strip, the strip is maintained in a flat, straight condition for a time sufficient to allow the adhesive to achieve an initial set, thereby preventing the final product from having a curved set. After the desired number of layers are wound into the loop, the loop is removed and cut through at one point to form a single, straight stacked section of definite length which is expandable and collapsible to form a shielding or insulating material having parallel hollow cells running perpendicular to the direction of expansion and collapse.

REFERENCES:
patent: Re30254 (1980-04-01), Rasmussen
patent: Re31129 (1983-01-01), Rasmussen
patent: 3963549 (1976-06-01), Rasmussen
patent: 4288485 (1981-09-01), Suominen
patent: 4388354 (1983-06-01), Suominen
patent: 4450027 (1984-05-01), Colson
patent: 4603072 (1986-07-01), Colson
patent: 4631108 (1986-12-01), Colson
patent: 4677012 (1987-06-01), Anderson
patent: 4732630 (1988-03-01), Schnebly

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