Concrete expansion joint

Details Concrete expansion joint Concrete expansion joint

1984-03-14

1985-10-22

Kelly, Donald G.

Static structures (e.g., buildings)

Relatively yieldable preformed separator

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

52403, 404 48, 404 68, E04B 168, E01C 1102

Patent

active

045480095

ABSTRACT:
A concrete expansion and contraction joint is provided comprising a hollow single piece longitudinal extruded member having a cross sectional configuration which resembles an arrow head with a relatively narrow upper stem portion.
When the expansion joint is inserted into the fluid concrete aggregate, the V-shaped bottom of the arrow head structure moves aside any stones encountered in the concrete by the top of the arrow thereby facilitating installation. The top edges of the sides of the V-shape upon immersion in the concrete form locking anchors. Horizontal portions extending laterally on each side from the upper central stem portion of the joint to a point near the top of the V sides form flanges that provide channels which block downward water seepage at the joint.

REFERENCES:
patent: 2060274 (1936-11-01), Awbrey
patent: 3180238 (1965-04-01), Crone
patent: 3218941 (1965-11-01), Daum
patent: 3352217 (1967-11-01), Peters et al.
patent: 3604169 (1971-09-01), Smith
patent: 3732788 (1973-05-01), Brown
patent: 3775918 (1973-12-01), Johnson
patent: 3871787 (1975-03-01), Stegmeier
patent: 3896597 (1975-07-01), Deason
patent: 3967911 (1976-07-01), Miers
patent: 4008974 (1977-02-01), Miers

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