Liner for concrete article
AssigneeHawkeyepedershaab Concrete Technologies, Inc.
InventorClaudio Subacchi
Life of this patent
Estimating the term…
Abstract
The liner includes a rib formation with a transverse section configured to mechanically lock the liner to a concrete shell and a joint to allow the rib formation to flex. The joint for the rib formation can comprise a first side spaced apart from a second side with each joined to the transverse section to allow each side to flex with respect to each other. The space between the first side and the second side can be filled with a weld material to add rigidity to the rib formation while allowing it to flex. Each of the first side and the second side can be combined at the other end to a shell. The combined rib formation and shell are spirally wound to create the liner.
Claims15
A liner for a concrete pipe comprising:
- a rib formation with a transverse section configured to mechanically lock the liner to the concrete pipe;
- and
- a joint with a first side and a first latitudinal section combined to the first side, and a second side and a second latitudinal section combined with the second side, wherein the first latitudinal section and the second latitudinal section are axially moveable with respect to each other to allow the first side to move with respect to the second side to allow for expansion and contraction of the liner.
A concrete article comprising:
- a liner having a first end and a second end and a rib formation with a joint to allow the rib formation to flex, wherein the rib formation further comprises a transverse section to mechanically lock the rib formation of the liner to a concrete shell, and wherein the joint further comprises a first side combined at one end to the transverse section and a second side combined at one end to the transverse section, and wherein the first side and the second side move with respect to each other, wherein the joint further comprises a space between the first side and the second side filled with a weld material;
- a female end cap attached to the first end of the liner;
- a male end cap attached to the second end of the liner;
- and
- the concrete shell extending from the female end cap to the male end cap and covering the liner and mechanically locked to the liner.
A concrete article comprising:
- a liner having a first end and a second end and a rib formation with a joint to allow the rib formation to flex, wherein the joint comprises of a first side and a first latitudinal section combined to the first side, and a second side and a second latitudinal section combined with the second side, wherein the first latitudinal section and the second latitudinal section are axially moveable with respect to each other to allow the first side to move with respect to the second side to allow for expansion and contraction of the liner;
- a female end cap attached to the first end of the liner;
- a male end cap attached to the second end of the liner;
- and
- a concrete shell extending from the female end cap to the male end cap and covering the liner and mechanically locked to the liner.
Dependencies are inferred from the claim text.