# US 12,000,148 B2 · Multi-anchor concrete post-tensioning system

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- Number: US 12,000,148 B2
- Document ID: US12000148B2
- Status: Granted
- Kind: B2
- Application number: 17/968,240
- Filed: 2022-10-18
- Published: 2023-02-09
- Granted: 2024-06-04
- Earliest claimed: 2019-03-21
- Applicants: Felix Sorkin
- Inventors: Felix Sorkin
- Web page: https://patentgrep.com/patent/US12000148B2

## CPC

- E04C 5/122: {the tensile members are anchored by wedge-action}
- E04C 5/125: {the tensile members are profiled to ensure the anchorage, e.g. when provided with screw-thread, bulges, corrugations}
- E04C 5/162: {Connectors or means for connecting parts for reinforcements (E04C5/168 takes precedence)}
- E04C 5/203: {Circular and spherical spacers}
- E04C: STRUCTURAL ELEMENTS; BUILDING MATERIALS (for bridges E01D; specially designed for insulation or other protection E04B; elements used as building aids E04G; for mining E21; for tunnels E21D; structural elements with broader range of application than for building engineering F16, particularly F16S)

## Abstract

A system for use with a post-tensioning concrete anchor may comprise a connector anchor including a bore therethrough, the bore including a first frustoconical portion, the connector anchor adapted to bear on the post-tensioning concrete anchor, and a coupler. The coupler may comprise a coupler body including a bore therethrough, the bore including a second frustoconical portion that is oriented oppositely to the first frustoconical portion, and a connector having a bore therethrough and configured to receive the coupler body therein, the connector adapted to mechanically engage the connector anchor such that a tensioning force can be transmitted from the coupler body to the connector anchor via the connector. A method of using the system may allow a second concrete section to be poured adjacent to a first concrete section before the first concrete section has been stressed.

## Claims

### Claim 1

A method for forming a concrete member comprising:
a) assembling a first concrete form having first and second ends;
b) assembling a first tendon for a first concrete section, the first tendon including a first anchor, a second anchor, and a first tension member affixed to the first anchor and the second anchor;
c) affixing a connector anchor to the first anchor;
d) affixing the first anchor to the first concrete form first end and affixing the second anchor to the first concrete form second end;
e) pouring concrete into the first concrete form so as to form a first concrete section in which the first anchor and the second anchor are embedded;
f) removing at least the first concrete form first end from the first concrete section;
g) assembling a second tendon for a second concrete section, the second tendon including a coupler, a third anchor, and a second tension member affixed to the coupler and the third anchor, the coupler including a coupler body and a connector, wherein the coupler body is disposed in the connector and the connector is mechanically coupled to the connector anchor,
h) affixing the third anchor to a second concrete form; i) pouring concrete into the second concrete form so as to form a second concrete section which is adjacent to the first concrete section and in which the coupler and the third anchor are embedded;
j) stressing the first tendon at the first anchor; and
k) stressing the second tendon at the third anchor; wherein step g) is carried out before step j).

### Claim 2 (depends on 1)

The method of claim 1, wherein the first concrete section is cured before step k).

### Claim 3 (depends on 2)

The method of claim 2, wherein step j) is performed before step k).

### Claim 4 (depends on 3)

The method of claim 3, wherein step e) is performed prior to step j).

### Claim 5 (depends on 4)

The method of claim 4, wherein the coupler is placed into engagement with the first anchor prior to step j).

### Claim 6 (depends on 5)

The method of claim 5, wherein the connector is threaded into the connector anchor.

### Claim 7 (depends on 1)

The method of claim 1, wherein the coupler is attached to the second tension member prior to being mechanically coupled to the connector anchor.

### Claim 8 (depends on 1)

The method of claim 1, wherein the coupler is attached to the second tension member after the coupler is attached to the first anchor.

### Claim 9 (depends on 1)

The method of claim 1, wherein the connector anchor is connected to the connector before the first tension member is inserted into the connector anchor.

### Claim 10 (depends on 1)

The method of claim 1, wherein step g) is performed prior to curing the first concrete section.