Patent ID: 9593506
Date: 2017-03-14
CPC Classifications: E04H,Y10T

Claim:
1. A method of modular pole construction, comprising the steps of: providing two or more than two hollow tapered pole section modules, each module having a first open end and an opposed second open end, a cross-sectional area of the second end is less than a cross-sectional area of the first end, each module comprising composite material produced by filament winding of a resin infused fibrous reinforcement in continuous layers along the length of each module such that the wall thickness of the resin infused fibrous reinforcement at the second end is greater than the wall thickness of the resin infused fibrous reinforcement at the first end of each module; and stacking the two or more than two modules to form an elongated modular pole structure of a selected length by mating the second end of a first module with the first end of a second module; wherein the first and second modules have different structural properties as a result of varying one or more than one property of the filament wound composite material selected from the group consisting of: (a) angle of winding of the resin infused fibrous reinforcement; (b) ratio of the fibrous reinforcement to the resin; (c) wrapping sequence of the resin infused fibrous reinforcement; (d) wall thickness; (e) composition of the fibrous reinforcement; (f) composition of the resin; (g) composition of additives in the resin; and (h) a mixture thereof, and wherein the elongated modular pole structure has a desired structural property by selectively combining modules having different structural properties; and wherein the different structural properties is selected from the group consisting of flexural strength, compressive strength, resistance to buckling, shear strength, outer shell durability, stiffness and a mixture thereof.