Method and apparatus for making a polymeric aircraft window panel
AssigneePPG Industries Ohio, Inc.
InventorsGeorge B. Goodwin, Dennis P. McCarthy, John D. M. Shearer
Life of this patent
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Abstract
A mold for casting a polymeric aircraft window panel includes a first mold half (12) having a first mold surface (24), and a second mold half (14) having a second mold surface (50). The first mold surface (24) and/or the second mold surface (50) have a shape conforming to a final shape for the major surfaces of the aircraft window panel. The first mold half (12) and/or the second mold half (14) can be formed of rolled, hydroformed, or stamped metal.
Claims20
A mold for casting, from a polymer precursor liquid, a polymeric aircraft window panel, the panel comprising a central viewing portion having a curved first and/or second surface and a peripheral edge shaped for engagement with a framework of an aircraft to hold the aircraft window panel in place during operation of the aircraft, the mold comprising:
- a first mold half comprising a first mold surface;
- a second mold half comprising a second mold surface;
- a glass liner removably located over the first mold surface and/or the second mold surface, and
- at least one shaped gasket comprising (i) an inner end positioned between a peripheral edge of the first mold half and a peripheral edge of the second mold half and (ii) an outer end positioned outward from the peripheral edges of the mold halves, the inner end comprising a rabbited or stepped surface shaped to form a rabbited or stepped edge for at least a portion of the peripheral edge of the panel,
- wherein the first mold surface and/or the second mold surface are capable of conforming to a final shape for opposed major surfaces of the aircraft window panel including the central viewing portion and the peripheral edge of the panel, and
- wherein an outwardly facing surface of the glass liner has a shape complementary to a shape of the first mold surface or the second mold surface.
Dependencies are inferred from the claim text.