Patent ID: 9745752
Date: 2017-08-29
CPC Classifications: E04C

Claim:
1. A spacer for spacing a wire reinforcing cage from the forms used in making concrete products, the cage having spaced-apart horizontal and vertical wires, the spacer comprising: an outer ring and an inner ring; the inner ring forming a hub spaced radially from the outer ring for receiving a horizontal wire on a wire reinforcing cage; spaced apart radially extending spokes connecting the outer ring and inner ring, the spokes having outer ends extending beyond the outer ring; the outer ring and inner ring each having a gap between the same two adjacent spokes to provide for placing the spacer on a horizontal wire of a wire reinforcing cage with the wire extending through the hub; a plurality of locking fingers inside the hub, the fingers extending at angles from radial lines to position the fingers to engage a horizontal wire on a wire reinforcing cage; a latch formed in the outer ring at the gap in the outer ring, the latch being unlocked when the gap is open but becoming locked when the gap in the outer ring is closed by moving the two adjacent spokes toward each other; and the outer ring having a second gap diametrically opposite the first gap to facilitate locking the latch in the first gap of the outer ring.