Patent ID: 8693612

Claim:
A unit spacer grid strap comprising: a plurality of first convexities protruding in one direction so as to be placed in contact with a nuclear fuel rod; a plurality of second convexities alternating with the first convexities, protruding in the other direction so as to be in contact with another nuclear fuel rod; and a plurality of joints, each of which connects the first convexity and the second convexity, wherein each of the first and second convexities includes: an intermediate support continuously connected with the joint between the first convexity and the second convexity; an upper support on a top edge of the unit spacer grip strap spaced apart from the intermediate support, and continuously connected with one of the two neighboring joints, the upper support having a shorter length than the intermediate support so that an end of the upper support is suspended in the space between the two neighboring joints; and a lower support on a bottom edge of the unit spacer grid strap spaced apart from the intermediate support, and continuously connected with the other of the two neighboring joints, the lower support having a shorter length than the intermediate support so that an end of the lower support is suspended in the space between the two neighboring joints.