Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Spacer-positioner; e.g. – rebar chair
Reexamination Certificate
2005-10-12
2008-11-18
Canfield, Robert (Department: 3633)
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Spacer-positioner; e.g., rebar chair
C052S684000, C248S074300
Reexamination Certificate
active
07451579
ABSTRACT:
A spacer wheel for use in construction using reinforcement rods cast into a compound such as concrete. The spacer wheel is configured to space a reinforcement rod from adjacent surfaces as the as the concrete is cast into a mold. The spacer wheel is of a three part design and has a base section and left and right pivotable sections. The spacer wheel uses an integrally molded hinge to join each pivotable section to the base section. The design also uses a dual rack and paw mechanism to clamp the spacer wheel onto the reinforcement rod.
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Joyce B. Klemmer, John R. Horvack, Defendant Concrete Accessories, Inc.'s Objections and Responses to Plaintiffs' First Set of Interrogatories, Feb. 2008, Atlanta, USA.
Canfield Robert
Colton Laurence P.
Concrete Accessories, Inc.
Herring Brent W
Smith Gambrell & Russell
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