Patent ID: 9663960
Date: 2017-05-30
CPC Classifications: E04G

Claim:
1. An edge lifting anchor system for use in lifting a concrete component, said edge lifting anchor system, comprising: (i) an anchor comprising a single length of wire bent to form a looped head portion dimensioned so as to allow a clutch portion to pass therethrough and engageable by a clutch of a lifting system, and a body portion for embedment within the concrete component, wherein the anchor is formed such that opposed legs of the body portion extend outwardly from a central axis and in a plane inclined to a plane of the looped head portion, each of the opposed legs having a series of ripples in a plane substantially at about 90 degrees to the plane of the looped head portion; wherein the looped head portion is twisted relative to the body portion about said central axis of the anchor relative to the plane of the looped head portion to form a loop of the looped head portion; (ii) a collar adapted to fit around and engage the looped head portion, wherein the collar forms two abutment shoulders for cooperation with a body of the clutch to limit clutch rotation, the two abutment shoulders defining therebetween (a) a length the looped head portion wire about which the body of the clutch is capable of rotating and (b) two lengths of wire about which the body of the clutch is incapable of rotating; and (iii) a shear bar extending transversely to the looped head portion, wherein the shear bar is welded to the collar.