Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Spacer-positioner; e.g. – rebar chair
Reexamination Certificate
1999-10-19
2001-08-21
Nelson, Jr., Milton (Department: 3636)
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Spacer-positioner; e.g., rebar chair
C052S677000, C052S686000, C052S687000
Reexamination Certificate
active
06276108
ABSTRACT:
This invention pertains generally to concrete structures and, more particularly, to a support stand with a clip for connecting reinforcing elements together and holding them in position while concrete is poured.
U.S. Pat. Nos. 4,110,951 and 4,617,775 disclose clips for use in connecting reinforcing bars together in the construction of concrete slabs and the like. The clip shown in U.S. Pat. No. 4,110,951 is designed for use with intersecting or crossing bars, and the clip shown in U.S. Pat. No. 4,617,775 is designed for use with parallel bars. These clips provide an attractive alternative to the wires which are widely used for tying reinforcing bars together.
Another consideration with reinforcing bars in slabs is holding them above the deck when the concrete is poured so that they will be positioned at the center of the slab. That is most commonly done by propping the bars up with blocks or with supports which are sometimes referred to as “chairs”.
It is in general an object of the invention to provide a new and improved device for use in supporting and connecting reinforcing elements in concrete structures.
Another object of the invention is to provide a device of the above character which overcomes the limitations and disadvantages of the ties and supports heretofore employed in connecting reinforcing bars together and positioning them in concrete slabs.
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Flehr Hohbach Test Albritton & Herbert LLP
GOPA Enterprises
Jr. Milton Nelson
White Rodney B.
LandOfFree
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