Manually formable stirrup mat reinforcement and pipe reinforcing method based thereon
OwnerWilbur E. Tolliverinventor
Life of this patent
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Abstract
The specification discloses a stirrup mat which a pipe producer manually forms in or on, and assembles to, a concrete pipe reinforcing cage, which assembly is then cast into a concrete pipe. The mat includes a plurality of parallel stirrup members, each having multiple projections, joined by just enough tie wires, 2 to 6, to give the mat dimensional stability. The tire wires are made of a flexible or ductile material having sufficient flexibility or ductility to allow the mat to be manually, arcuately shaped so as to conform to the curvature of the cage to which it is assembled.
Claims17
A method for preparing a reinforcing cage for concrete pipe wherein a cage is first formed to a desired configuration, the improvement in said method comprising:
- providing a stirrup mat having a plurality of generally parallel stirrup members, each including a plurality of stirrup projections projecting laterally therefrom, said stirrup members being interconnected by only a sufficient number of tie wires to give said mat dimensional stability whereby it can be handled, without collapsing, in various orientations including a generally horizontal orientation and can thereby be moved to and located at the area of the cage to be reinforced, said tie wires being sufficiently flexible that they can be manually bent into an arcuate curvature, but being sufficiently stiff that they make said dimensional stability possible;
- placing said mat adjacent a formed cage, manually forming said mat to the general curvature of said cage and securing it to said cage with said stirrup projections projecting generally radially away from the curved plane defined by the curvature of said cage.
A stirrup mat for assembly to a reinforcing cage for concrete pipe comprising:
- a plurality of generally parallel stirrup members, each including a plurality of stirrup projections projecting laterally therefrom;
- only a sufficient number of tie wires secured to and interconnecting said stirrup members to give said mat dimensional stability whereby it can be handled, without collapsing, in various orientations including a generally horizontal orientation and can thereby be moved to and located at the area of the cage to be reinforced, said tie wires being sufficiently flexible that they can be manually bent into an arcuate curvature corresponding to the general curvature of a cage with said stirrup projections projecting generally radially away from the curved plane defined by the curvature of said cage, but being sufficiently stiff that they make said dimensional stability possible.
Dependencies are inferred from the claim text.