Spacer for double cage reinforcement wire mesh for concrete prod

Details Spacer for double cage reinforcement wire mesh for concrete prod Spacer for double cage reinforcement wire mesh for concrete prod

1990-04-18

1991-03-19

Scherbel, David A.

Static structures (e.g., buildings)

Openwork; e.g., truss, trellis, grille, screen, frame, or...

Spacer-positioner; e.g., rebar chair

52677, 52652, 52719, E04C 516

Patent

active

049999656

ABSTRACT:
A spacer for use in locking two cages into an integral unit of reinforcement and spacing the reinforcement from the surface of the form used in making large concrete products such as box sections, pipes, culverts and manholes. The spacer provides for precise placement of the reinforcement cages without the necessity of welding or the use of ties to retain the spacer in place. The spacer uses an eye configuration for spacing a torsion lock that provides for both ease of installation and positive locking of the spacer onto the cages.

REFERENCES:
patent: 1543207 (1925-06-01), Erb et al.
patent: 1750100 (1930-03-01), Heltzel
patent: 3440792 (1969-04-01), Schmidgall
patent: 3722164 (1973-03-01), Schmidgall
patent: 4301638 (1981-11-01), Schmidgall
patent: 4835934 (1989-06-01), Swenson

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