Self-sealing tie assembly for erecting concrete forms

Details Self-sealing tie assembly for erecting concrete forms Self-sealing tie assembly for erecting concrete forms

1974-05-17

1976-01-20

Flint, Jr., J. Howard

Static molds

In situ construction engineering type or building type-mold...

Forming building structure

249 43, 249217, E04G 1708

Patent

active

039333329

ABSTRACT:
A feed-through, self-sealing tie assembly for mounting as a unit on concrete forms and capable of being removed therefrom without disassembling the forms or the tie assembly is disclosed. The tie assembly includes an elongated tie rod on which is mounted an elongatable, elastomeric sleeve. The sleeve and the tie rod have interengageable surfaces for releasably coupling the sleeve to the tie rod. Guide means positioned over one end of the sleeve facilitates insertion of the tie assembly through corresponding spaced openings in the forms so that both ends of the sleeve are projected exteriorly of the forms. The openings are sealed by the elastomeric sleeve due to the lateral deformation of the sleeve when in the form openings and by the compressive forces exerted by the concrete on the tie assembly. Thus, the elastomeric sleeve provides a self-sealing and removable closure. Wedges or nuts cooperate in coupling the tie rod to the forms; and external spreader brackets are provided to maintain the forms apart the prescribed distance.

REFERENCES:
patent: 1991256 (1935-02-01), Muntz
patent: 2001052 (1935-05-01), Colt
patent: 2099260 (1937-11-01), Colt
patent: 2314866 (1943-03-01), Bosco
patent: 2709292 (1955-05-01), Otti
patent: 3405904 (1968-10-01), Williams
patent: 3437309 (1969-04-01), Tausanovitch
patent: 3667720 (1972-06-01), Williams

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