Method of making a bullet-resistant transparent panel

Details Method of making a bullet-resistant transparent panel Method of making a bullet-resistant transparent panel

1993-07-16

1994-12-13

Weston, Caleb

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264263, 156104, B32B 3106

Patent

active

053727711

ABSTRACT:
A method of making a transparent panel is provided. The transparent panel effectively blocks the penetration of a bullet when fired from one side of the panel, but not when fired from the other side of the panel. The method comprises forming a sheet of acrylic resin and a sheet of polycarbonate resin, both of equal size and configuration. A sealing strip is applied completely around the peripheral edge of one of the sheets and the two sheets are then brought together, being spaced apart by the sealing strip. Two holes are then drilled into one of the two sheets at locations spaced at diagonally opposite corner edges of the sheet. Under pressure applied to the opposite faces of the two sheets, a liquid resin is injected into the space between the two sheets through one of the two holes until the entire volume between the two sheets is filled. Then the resin is permitted to harden. In an alternative method, the pressure is applied to the opposite faces of the two sheets using a fixed and a movable frame assembly. Each of the frame assemblies comprise a plurality of parallel pressure bars extending transversely across the respective frame.

REFERENCES:
patent: H7 (1986-01-01), Martone
patent: 1937396 (1933-11-01), Watkins
patent: 2020178 (1935-11-01), Haas
patent: 2064514 (1936-12-01), Balz
patent: 3703425 (1972-11-01), Delmonte et al.
patent: 4312903 (1982-01-01), Molari, Jr.

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