Expandable tie anchor

Details Expandable tie anchor Expandable tie anchor

1976-03-26

1977-06-07

Husar, Francis S.

Static molds

Mold element

In situ construction engineering or building type

349 40, 249216, E04G 1708

Patent

active

040278476

ABSTRACT:
A tie rod is provided having an abutment on one end portion thereof spaced a predetermined distance inwardly of the terminal end of the rod. A tubular sleeve is slidably mounted on the one end portion of the rod outwardly of the abutment for endwise abutting engagement with the latter and the sleeve includes structure which renders the sleeve substantially incompressible in an axial direction, but enables the sleeve to be expanded in radial directions. A wedge sleeve is slidably mounted on the end portion of the rod outwardly of the first-mentioned sleeve and includes a tapered end portion receivable within and operative to radially expand the adjacent end of the first-mentioned sleeve. The diameter of the first-mentioned sleeve is such to be received through a bore formed in a concrete form wall and may be expanded, upon movement of the wedge sleeve theretoward, to a diameter larger than the aforementioned bore whereby the outer end of the first-mentioned sleeve will abut the inner surfaces of the form wall about the bore through which the free end portion of the rod extends.

REFERENCES:
patent: 2728127 (1955-12-01), Armstrong
patent: 3430914 (1969-03-01), Clasen et al.
patent: 3918673 (1975-11-01), Abbott

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