US 12,291,860 B2
Formwork panel
Greg Stephen Mason, Brisbane (AU)
Assigned to Illinois Tool Works Inc., Glenview, IL (US)
Filed by Illinois Tool Works Inc., Glenview, IL (US)
Filed on Mar. 3, 2023, as Appl. No. 18/178,398.
Application 18/178,398 is a continuation of application No. 17/292,624, granted, now 11,608,629, previously published as PCT/US2019/061749, filed on Nov. 15, 2019.
Claims priority of application No. 2018904425 (AU), filed on Nov. 19, 2018; and application No. 2019264633 (AU), filed on Nov. 14, 2019.
Prior Publication US 2023/0203804 A1, Jun. 29, 2023
Int. Cl. E04B 1/41 (2006.01); E04B 1/38 (2006.01)
CPC E04B 1/4107 (2013.01) [E04B 2001/389 (2023.08)] 16 Claims
OG exemplary drawing
 
1. A formwork panel for forming adjacent concrete bodies, the formwork panel comprising:
a first sideform wall extending vertically, the first sideform wall having an inner surface, an outer surface, and a first lip;
a second sideform wall extending vertically and spaced apart from the first sideform wall, the second sideform wall having an inner surface, an outer surface, and a second lip;
a top wall extending between and connecting the first sideform wall to the second sideform wall, the top wall having a first end and a second end;
a bottom wall extending between and connecting the first sideform wall to the second sideform wall, the bottom wall having a first end and a second end;
a first rail connected to the outer surface of the second sideform wall above the second lip of the second sideform wall, the first rail having a horizontal portion and a vertical portion;
wherein the horizontal portion of the first rail extends horizontally outward from the second sideform wall past the second end of the top wall;
wherein the vertical portion of the first rail extends vertically downward towards the bottom wall;
a second rail connected to the outer surface of the second sideform wall between the first rail and the second lip of the second sideform wall, the second rail having a horizontal portion and a vertical portion;
wherein the horizontal portion of the second rail extends horizontally outward from the second sideform wall past the second end of the top wall;
wherein the vertical portion of the second rail extends vertically upward towards the top wall; and
a plurality of spaced-apart sacrificial ribs each extending between and connecting the first sideform wall to the second sideform wall,
wherein the first lip of the first sideform wall includes a horizontal portion that extends horizontally outward from the first sideform wall past the first end of the top wall and a diagonal portion that connects the horizontal portion of the first lip to the first end of the bottom wall;
wherein the second lip of the second sideform wall includes a horizontal portion that extends horizontally outward from the second sideform wall past the second end of the top wall and a diagonal portion that connects the horizontal portion of the second lip to the second end of the bottom wall;
wherein the first sideform wall, the second sideform wall, the top wall, the bottom wall, and the sacrificial ribs define a plurality of spaced apart internal voids between the first sideform wall and the second sideform wall such that the formwork panel is compressible when one or both of the adjacent concrete bodies expand toward the formwork panel.