US 12,134,864 B2
Flight for asphalt rotary dryer
Malcolm L. Swanson, Chickamauga, GA (US)
Assigned to e5 Engineers, LLC, Chickamauga, GA (US)
Filed by e5 Engineers, LLC, Chickamauga, GA (US)
Filed on Dec. 8, 2021, as Appl. No. 17/545,236.
Claims priority of provisional application 63/165,930, filed on Mar. 25, 2021.
Prior Publication US 2022/0307205 A1, Sep. 29, 2022
Int. Cl. E01C 19/10 (2006.01); E01C 19/08 (2006.01); F26B 11/02 (2006.01); F26B 25/04 (2006.01)
CPC E01C 19/1027 (2013.01) [E01C 19/08 (2013.01); F26B 11/028 (2013.01); F26B 25/04 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A dryer configured for use in an asphalt plant, the dryer comprising:
a drum having an interior with an inner wall; and
a flight disposed within the interior of the drum, the flight comprising:
a proximal edge attached to the inner wall of the drum;
a distal edge that is spaced apart from the proximal edge; and
an opening having a shape defined by a plurality of isosceles trapezoids that each comprise a plurality of line segments connected end-to-end, the plurality of isosceles trapezoids comprising at least:
a first isosceles trapezoid comprising:
an upper line segment spaced apart from the distal edge of the flight, the upper line segment having a first end and a second end;
a pair of first middle line segments disposed between the upper line segment and the proximal edge of the flight, the pair of first middle line segments comprising:
 a first left middle line segment connected to the first end of the upper line segment, wherein the first left middle line segment and the upper line segment intersect at an angle; and
 a first right middle line segment connected to the second end of the upper line segment, wherein the first right middle line segment and the upper line segment intersect at an angle; and
a middle line disposed below and parallel to the upper line segment, the middle line having a first end connected to the first left middle line segment and a second end connected to the first right middle line segment; and
a second isosceles trapezoid comprising:
the middle line;
a pair of second middle line segments disposed between the middle line and the proximal edge of the flight, the pair of second middle line segments comprising:
 a second left middle line segment connected to the first end of the middle line, wherein the second left middle line segment and the middle line intersect at an angle; and
 a second right middle line segment connected to the second end of the middle line, wherein the second right middle line segment and the middle line intersect at an angle; and
a lower line segment disposed below and parallel to the middle line, the lower line segment having a first end connected to the second left middle line segment and a second end connected to the second right middle line segment.