IP Library Granted Patent US 12,421,749
Granted Patent B2
US 12,421,749 · App. 18/344,312 · Granted Sep 23, 2025

Exhaust stack lattice tower

Inventor: Kevin Reski (West Fargo, ND)
Assignee: Great Plains Tower Products LLC
E04H12/08E02D27/42E04H12/10E04H12/187E04H12/2261
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Quick Facts
Patent No.
US 12,421,749
App. No.
18/344,312
Granted
Sep 23, 2025
Kind
B2
Abstract

A lattice tower structure includes a first lattice section that comprises a first leg, a second leg, and a third leg forming a triangular shaped first lattice section of the tower, the first, second and third leg each constructed of a solid galvanized steel rod; and an exhaust stack at least partially secured within the first, second and third leg.

Claims (20)

1. A lattice tower structure, comprising:

a first lattice section that comprises a first leg, a second leg, and a third leg forming a triangular shaped first lattice section of the tower, the first, second and third leg each constructed of a solid galvanized steel rod;

an exhaust stack at least partially secured within the first, second and third leg; and

an annular support formed as a portion of one leg through which a horizontal stack section of the exhaust stack extends.

2. The tower as recited in claim 1 , further comprising a multiple of stack supports that extend from each of the first, second and third legs to engage a vertical stack section of the exhaust stack.

3. The tower as recited in claim 2 , wherein each of the multiple of stack supports comprise an annular portion and an attachment portion, the annular portion mounted around one of the respective legs and the attachment portion attached to the vertical stack section of the exhaust stack, the annular portion welded to the respective leg.

4. The tower as recited in claim 2 , wherein at least one of the multiple of stack supports is located between each of a first horizontal and a second horizontal between at least two of the first, second and third legs.

5. The tower as recited in claim 2 , further comprising a multiple of horizontals between at least two of the first, second and third legs, at least one of the multiple of stack supports located between each pair of the multiple of horizontals.

6. The tower as recited in claim 2 , wherein at least one of the multiple of stack supports is located between each of a first diagonal and a second diagonal between at least two of the first, second and third legs.

7. The tower as recited in claim 2 , further comprising a multiple of diagonals between at least two of the first, second and third legs, at least one of the multiple of stack supports located between each pair of the multiple of diagonals.

8. The tower as recited in claim 1 , further comprising:

a foot welded to each leg of the lattice section, each foot having an aperture;

an inner gusset welded to each foot and the respective leg, the inner gusset extends toward an inner edge of the respective foot; and

an outer gusset welded to each foot, the outer gusset extends toward the aperture of the respective foot.

9. The tower as recited in claim 8 , wherein each outer gusset defines an angle with respect to an axis defined between a center of the aperture and a center of the respective leg.

10. The tower as recited in claim 9 , wherein the outer gusset extends outward toward the aperture.

11. The tower as recited in claim 10 , wherein the outer gusset defines the angle.

12. The tower as recited in claim 10 , wherein the outer gusset defines the angle with respect to the axis.

13. The tower as recited in claim 12 , wherein the angle is 28 degrees.

14. The tower as recited in claim 13 , wherein the outer gusset extends for a length greater than the inner gusset with respect to the leg.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 30, 2023
From: GREAT PLAINS TOWERS, INC.
To: GREAT PLAINS TOWER PRODUCTS LLC
Reel/Frame 064133/0563 →
Continuity (3)
Continuation In Part 18323290 · May 24, 2023
Continuation 17818882 · Aug 10, 2022
Related Publication 20240052665A1 · Feb 15, 2024
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