Flared end section assembly and method of making same

A flared end section (FES) assembly comprising:

• an inlet head wall portion, the inlet head wall portion defining:
• a base wall spacing and coupling first and second lateral walls;
• a partially circular portion defined by the first and second lateral walls;
• and
• a coupling base portion extending along the base wall;
• a tapered midsection coupled to the inlet head wall portion, the tapered midsection extending from the inlet head wall portion to a flared end section;
• and
• a first folding hinge arm hingedly coupled to the tapered midsection, wherein the first folding hinge arm defines a first arced surface, the first folding hinge arm having an open position and a closed position, wherein in the closed position, the first arced surface aligns with the partially circular portion to define a portion of a circle greater than the partially circular portion.

A method of making a flared end section (FES) assembly, the method comprising:

• forming a polymer into an inlet head wall portion, the inlet head wall portion defining:
• a base wall spacing and coupling first and second lateral walls;
• a partially circular portion defined by the first and second lateral walls;
• and
• a coupling base portion extending along the base wall;
• forming a tapered midsection coupled to the inlet head wall portion, the tapered midsection extending from the flared end portion to a flared end section;
• and
• forming first and second folding hinge arms hingedly coupled to the tapered midsection, wherein the first and second folding hinge arms define first and second arced surfaces, the first and second hinge arms having an open position and a closed position, wherein in the closed position, the first and second arced surface align with the partially circular portion to define a portion of a circle greater than the partially circular portion.