Concrete control joint

Details Concrete control joint Concrete control joint

1977-09-19

1978-12-05

Perham, Alfred C.

Road structure, process, or apparatus

Pavement

Including joint means

52396, 52573, E04B 1514

Patent

active

041283589

ABSTRACT:
A concrete control joint is characterized by a substantially T-shaped member having a slit extending substantially vertically through the upright member of the T to define first and second leg portions thereof. The lower ends of each leg portion are resiliently and hingedly connected together. An arm of the T is connected to the end of each leg portion opposite the hinged connection. The arms terminating in fingers which extend substantially perpendicular from the underside of the arms in a direction substantially parallel to the leg portions toward the hinged joint therebetween.

REFERENCES:
patent: 429013 (1890-05-01), Carskadon
patent: 1053267 (1913-02-01), Benson et al.
patent: 2100238 (1937-11-01), Burgess
patent: 2240786 (1941-05-01), Kinzer
patent: 2245633 (1941-06-01), Wolfe
patent: 2806414 (1957-09-01), Woodman
patent: 2983081 (1961-05-01), Brown

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