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Spacer for double cage concrete reinforcement wire grids

  • US 5,832,690 A
  • Filed: 04/01/1997
  • Issued: 11/10/1998
  • Est. Priority Date: 04/01/1997
  • Status: Expired due to Fees
First Claim
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1. A spacer for maintaining a spaced relationship between first and second wire mesh concrete reinforcing cages, wherein each cage comprises a wire grid formed of a plurality of spaced, generally parallel cage wires interconnected by transversely extending, spaced, generally parallel cage wires, the spacer being formed of a length of wire and comprising;

  • an elongated central portion adapted to extend between the cages, the central portion having first and second outer ends at opposite ends thereof;

    first and second attachment means on the first and second outer ends of the central portion for attaching the ends of the spacer to the first and second cages;

    the first attachment means comprising a fastener that books on at least one wire of one of the cages so as to resist movement of the spacer in at least one direction perpendicular to a plane of the cage;

    the second attachment means comprising first and second spaced hooks interconnected by an arm that extends laterally from the second end of the central portion, the hooks being spaced and shaped to fit over and engage adjacent spaced parallel wires in the second cage so as to restrain the second end of the central portion from a movement transverse to the axis of the wires to which the second attachment means is attached, the attachment of the first and second hooks to the wires serving to restrain the spacer from rotation about an axis of the central section, the second attachment means further having a receptacle that receives one of the adjacent spaced parallel wires in the second cage, the receptacle holding the one spaced parallel wire at the second outer end of the central portion and preventing the one spaced parallel wire from moving in a direction along a length of the central portion.

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