Cable anchor
First Claim
Patent Images
1. In an anchor for connecting a cable to a structure, the anchor including a chuck body, a cap, and a stem, the chuck body including a wedge that grips the cable, and the chuck body threadably connecting to the cap, the stem including a shank that fixedly connects to the structure and a head that engages the cap, the improvement wherein:
- the head of the stem is shaped as a truncated sphere so as to have a frusto-spherical convex surface that engages a concave surface of the cap to permit rotation of the stem relative to the cap and body; and
the wedge comprises a set of jaws that grips the cable.
4 Assignments
0 Petitions
Accused Products
Abstract
A cable anchor has ball surfaces that permit misalignment between the cable and a stem of the anchor, and a fitting that permits the introduction of a corrosion inhibitor to the interior of the anchor.
27 Citations
20 Claims
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1. In an anchor for connecting a cable to a structure, the anchor including a chuck body, a cap, and a stem, the chuck body including a wedge that grips the cable, and the chuck body threadably connecting to the cap, the stem including a shank that fixedly connects to the structure and a head that engages the cap, the improvement wherein:
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the head of the stem is shaped as a truncated sphere so as to have a frusto-spherical convex surface that engages a concave surface of the cap to permit rotation of the stem relative to the cap and body; and the wedge comprises a set of jaws that grips the cable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An anchor for connecting a steel cable to a concrete structure, comprising:
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a chuck body; a cap screwed into one end of the chuck body, the cap having in an end face thereof a hole that opens to a concave surface inside of the cap; a stem including a shank and a head, the head being shaped as a truncated sphere so as to have a frusto-spherical convex surface that mates with the concave surface of the cap to permit articulation of the stem relative to the cap about 360 degrees, a neck of the stem extending through the hole in the cap with a clearance between the hole and the neck that permits said articulation of the stem relative to the cap and wherein the shank extends beyond the cap; a wedge inside the chuck body, the wedge including a set of jaws; wherein; the end of the cable is received between the jaws of the wedge so as to grip the cable by the jaws inside the chuck body and tighten the grip of the jaws on the wedge as tension is applied to the cable, the cable extending from an end of the chuck body opposite from the one end to which the cap is screwed; and the shank of the stem being fixedly connectable to the concrete structure. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A connection of a multi-strand steel cable to a structure, comprising:
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an end of the multi-strand cable; a concrete wall of the structure; an anchor comprising; a chuck body; a cap screwed into one end of the chuck body, the cap having in an end face thereof a hole that opens to a concave surface inside of the cap; a stem including a shank and a head with the head being shaped as a truncated sphere so as to have a frusto-spherical convex surface that mates with the concave surface of the cap to permit articulation of the stem relative to the cap about 360 degrees, a neck of the stem extending through the hole in the cap with a clearance between the hole and the neck so the shank extends beyond the cap and permits said articulation of the stem relative to the cap; a wedge inside the chuck body, the wedge including a set of jaws; wherein; the end of the cable is received between the jaws of the wedge so as to grip the cable by the jaws inside the chuck body and tighten the grip of the jaws on the wedge as tension is applied to the cable, the cable extending from an end of the chuck body opposite from the one end to which the cap is screwed; the shank of the stem is fixedly connected to the concrete wall of the structure.
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Specification