Modified permanent cap

Patent metadata

Field	Value
Publication number	US-9303406-B2
Application number	US-201414549037-A
Country	US
Kind code	B2
Filing date	Nov 20, 2014
Priority date	May 19, 2014
Publication date	Apr 5, 2016
Grant date	Apr 5, 2016

Abstract

A permanent stressed end cap for a post tensioned concrete member includes a grout retention feature adapted to retain a filler material within a void formed by a pocket former. The grout retention feature may be a generally knob or mushroom shaped, hex-headed, or square body extending from the cap. The grout retention feature may include one or more protrusions extending from the exterior of the cap. The grout retention feature may include one or more surface textures on the exterior of the cap.

First claim

The invention claimed is:

1. A permanent cap for a post-tensioned concrete anchor positioned in a cavity in a concrete member comprising:
a cap body, the cap body adapted to couple to the post tensioned concrete anchor; and
a grout retention feature adapted to retain a filling material within the cavity, the grout retention feature extending from an end of the cap body opposite the post-tensioned concrete anchor, the grout retention feature including a grout retention feature body coupled to the cap body by a neck.

2. The permanent cap of claim 1 , wherein the grout retention feature body is prismatoidal in shape.

3. The permanent cap of claim 1 , wherein the grout retention feature body is generally round or oblong.

4. The permanent cap of claim 1 , wherein the grout retention feature body is a generally regular square or hexagonal prism.

5. The permanent cap of claim 1 , wherein the grout retention feature comprises at least one protrusion.

6. The permanent cap of claim 5 , wherein the protrusion comprises at least one of a cylindrical, prismatoidal, or ellipsoidal protrusion.

7. The permanent cap of claim 1 , wherein the grout retention feature comprises a surface texture.

8. The permanent cap of claim 7 , wherein the surface texture comprises at least one of cross hatches, grooves, stipples, ridges, knurls, flutes, or any combination thereof.

9. The permanent cap of claim 1 , wherein the grout retention feature body is polygonal, mushroom-shaped, ellipsoidal, or spherical.

Assignees

• Sorkin Felix

Inventors

• Sorkin Felix

Classifications

• E04G21/12

  Mounting of reinforcing inserts; Prestressing (shell tubes for prestressing members E04C5/10; anchoring means E04C5/12; connections of reinforcing elements and spacers E04C5/16) · CPC title

• E04C5/122

  the tensile members are anchored by wedge-action · CPC title

• E04B1/16

  Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material (E04B1/32 - E04B1/36 take precedence) · CPC title

• E04C5/12 Primary

  Anchoring devices (tools or methods for tensioning {in situ} E04G21/12) · CPC title