Island form

Details Island form Island form

1996-03-12

1997-12-23

Graysay, Tamara L.

Road structure, process, or apparatus

Traffic steering device or barrier

Curb

404 6, 404 7, E01C 1122

Patent

active

057001065

ABSTRACT:
An easily assembled concrete form including a plurality of elongated wall members manufactured by roll forming and connected together to define an enclosure. Each wall member has a first end and a second end, an inner surface and an outer surface. Attached to the inner surface of the wall member at the first end is a U-shaped key having legs extending beyond the first end of the wall member. Attached to the inner surface of the wall member at the second end is an interlocking bracket having two vertically spaced slots for receiving the legs of the U-shaped key to connect adjacent wall members together. One of the slots is enlarged for also receiving an extending flange from a support bracket to frictionally maintain the U-shaped key and interlocking bracket in a locked relationship.

REFERENCES:
patent: 1697765 (1929-01-01), Heltzel
patent: 2008162 (1935-07-01), Waddell
patent: 3862737 (1975-01-01), Fuston, Jr.
patent: 3938776 (1976-02-01), Frazier
patent: 4202145 (1980-05-01), Coulter et al.
patent: 4712764 (1987-12-01), White
patent: 4901497 (1990-02-01), Lee
patent: 5044601 (1991-09-01), Miller
patent: 5174083 (1992-12-01), Mussell
patent: 5205942 (1993-04-01), Fitzgerald
patent: 5265836 (1993-11-01), Dale

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