Concrete dowel placement sleeves

Details Concrete dowel placement sleeves Concrete dowel placement sleeves

1991-02-15

1993-06-08

Friedman, Carl D.

Static structures (e.g., buildings)

Relatively yieldable preformed separator

Separator inserted prior to or during pouring of two...

52704, E04B 162

Patent

active

052168620

ABSTRACT:
Slip and non-slip dowel placement sleeves are disclosed. The slip dowel placement sleeve generally comprises a tubular dowel receiving sheath having a closed distal end and open proximal end. A connecting means is formed around or inserted into the proximal opening of the sheath to facilitate attachment of the sheath to a concrete form. Smooth sections of dowel rod may then be advanced through holes drilled in the concrete form and into the interior compartment of the sheath. Concrete is poured within the form and the dowel rod remains slidably disposed within the interior of the sheath. Variations of the basic slip dowel placement sleeve of the invention include a tapered "extractable" sleeve and a corrugated "grout tube" for placement of non-slip dowel or rebar.

REFERENCES:
patent: 1045562 (1912-11-01), Kennedy
patent: 2636426 (1953-04-01), Heltzel
patent: 2746365 (1956-05-01), Darneille
patent: 4533112 (1985-08-01), Santos, Jr. et al.
patent: 4578916 (1986-04-01), Witschi
patent: 5005331 (1991-04-01), Shaw et al.
Brochure by Concrete Tie for continuous dowel support and spacer for expansion joints in concrete pavements.

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