Patent ID: 8938882
Filing Date: 2015-01-27
Classification: B29C,B32B,E04F,F24S,Y10T

Abstract:
1. A method of making a frame structure comprising: providing a reinforcing member having an outer surface and at least a portion having a substantially hollow interior; forming a plurality of lobes in said reinforcing member having an interior lobe size that is larger than a lobe waist opening; extruding a first plastic layer into said plurality of lobes until said plastic extends into said lobe waist opening; extruding an exterior plastic layer over substantially all of said outer surface of said reinforcing member while said first plastic layer is sufficiently hot to knit to said exterior plastic layer to form a substantially unitary plastic coating structure comprising said first plastic layer and said exterior plastic layer that is securely held to said reinforcing member by said first plastic layer that is disposed in said lobes, said exterior plastic layer creating an inward force on said reinforcing member as said exterior plastic layer cools and contracts to further hold said exterior plastic layer securely to said reinforcing member.