Photopolymer resist sheet laminator

Claim 1

In a laminator for simultaneously applying sheets of material to opposite sides of a panel coextensively with the surface area of each side wherein the laminator is provided with a pair of spaced apart rotatable cylindrical laminating drums, and feed means for inserting a panel between said drums, the improvement comprising vacuum means for holding said material on the surface of said drums, at least two equally spaced apart grooves formed in the surface of each drum lengthwise thereof, resilient pad means dispersed in and protruding from each groove, means for moving said drums toward and away from each other; said drums each having an equal number of grooves therein with said drums being angularly oriented with respect to each other whereby each groove on one drum is periodically opposed to a corresponding groove on the drum to enable said pad means therein to press-seal said material to opposite sides of said panel simultaneously upon movement of said drums toward each other, cutter means, means supporting and guiding said cutter means parallel and adjacent to one of said grooves on each drum, means for reciprocating each of said cutter means along said grooves to cut a length of material from a continuous roll of material adjacent the leading edge of the pad means in said groove on each drum and additional feed means for passing said panel between said drums subsequent to the press-sealing of said sheets therein upon rotation of sAid drum to index the next groove on each drum into opposed relation and to remove said cut sheets of material from said drums into intimate non-sealed relation with the opposite surfaces of said panel.