Tilt-up construction chamfers

Details Tilt-up construction chamfers Tilt-up construction chamfers

2005-08-16

2005-08-16

Yip, Winnie (Department: 3637)

Static molds

Mold element

In situ construction engineering or building type

C249S219100, C052S127300, C052S742140, C052S699000

Reexamination Certificate

active

06929234

ABSTRACT:
A chamfer for securing precast concrete wall panel forms that are used in tilt-up construction. The chamfer includes an elongate base portion and at least one chamfer portion coextensive with the lengthwise direction of the elongate base portion. The base portion defines a substantially horizontal base plane. The chamfer portion includes a first leg disposed upstanding relative to the base portion, and a second leg portion angularly disposed relative the first leg. The second leg further includes at least one flexible edge that projects beyond at least the base plane or the plane defined by the lengthwise direction extension of the first leg. Depending on which part of the second leg the edge is cantilevered from, it forms a sealed relationship between the chamfer and a casting surface, the chamfer and a plank used as part of the wall form, or both. The application of weight, usually due to the addition of a plank, causes the base portion of the chamfer to flex, which in turn causes the flexible edges disposed on the chamfer outside the elastic curve defined by the flexed base portion to splay, and edges disposed on the chamfer inside the elastic curve to pinch, thereby effecting a seal to minimize or eliminate leakage associated with the poured concrete.

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