# US 2014/0290784 A1 · Reinforcement laminate having an alignment feature

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- Number: US 2014/0290784 A1
- Document ID: US20140290784A1
- Status: Published application
- Kind: A1
- Application number: 14/114,532
- Filed: 2012-05-09
- Published: 2014-10-02
- Earliest claimed: 2011-05-13
- Assignees: Deepflex Inc.
- Inventors: David Michael McCall
- Web page: https://patentgrep.com/patent/US20140290784A1

## CPC

- F16L 9/14: Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups (F16L9/16 - F16L9/22 take precedence)
- B32B 1/08: Tubular products
- B32B 3/28: characterised by a layer comprising a deformed thin sheet {, i.e. the layer having its entire thickness deformed out of the plane}, e.g. corrugated, crumpled (B32B29/08 takes precedence)
- B32B 3/30: characterised by a layer formed with recesses or projections, e.g. {hollows, grooves, protuberances, ribs (apertured layer B32B3/266; layer with cavities or internal voids B32B3/26)}
- B32B 7/04: Interconnection of layers
- F16L 11/083: {three or more layers}
- F16L 11/16: wound from profiled strips or bands
- Y10T 29/4978: Assisting assembly or disassembly
- Y10T 428/24521: with component conforming to contour of nonplanar surface
- Y10T 428/24628: Nonplanar uniform thickness material
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

In one aspect, the present disclosure relates to a reinforcement stack of a spoolable pipe composed of a plurality of laminates stacked to form the reinforcement stack. At least one of the plurality of laminates includes an alignment feature configured to align adjacently stacked laminates. In another aspect, the present disclosure relates to a method to manufacture a reinforcement stack of a spoolable pipe. The method includes providing an alignment feature on at least one laminate of a plurality of laminates and arranging the plurality of laminates using the alignment feature to form the reinforcement stack. In another aspect, the present disclosure relates to an armor layer of an unbonded flexible pipe. The armor layer includes a plurality of laminates stacked to form a reinforcement stack of the armor layer in which each laminate of the plurality of laminates comprises an alignment feature to align adjacent laminates.

## Claims

### Claim 1

A reinforcement stack of a spoolable pipe, the reinforcement stack comprising:
a plurality of laminates stacked to form the reinforcement stack;
wherein at least one of the plurality of laminates comprises an alignment feature configured to align adjacently stacked laminates.

### Claim 2 (depends on 1)

The reinforcement stack of claim 1, wherein the alignment feature comprises at least one protrusion and at least one depression corresponding to the at least one protrusion.

### Claim 3 (depends on 2)

The reinforcement stack of claim 2, wherein the at least one protrusion and the at least one depression are distributed symmetrically about a centerline of the laminate.

### Claim 4 (depends on 1)

The reinforcement stack of claim 1, wherein the alignment feature comprises a peak of a chevron geometry of each of the plurality of laminates.

### Claim 5 (depends on 4)

The reinforcement stack of claim 4, wherein the chevron geometry of each laminate is formed symmetrically about a centerline of the laminate.

### Claim 6 (depends on 1)

The reinforcement stack of claim 1, wherein the alignment feature is configured to align each of the plurality of laminates along a centerline of the plurality of laminates.

### Claim 7 (depends on 1)

The reinforcement stack of claim 1, wherein the alignment feature comprises a geometric upset in a thickness direction of each of the plurality of laminates.

### Claim 8 (depends on 1)

The reinforcement stack of claim 1, wherein the plurality of stacked laminates comprises a substantially rectangular geometry.

### Claim 9

A method to manufacture a reinforcement stack of a spoolable pipe, the method comprising:
providing an alignment feature on at least one laminate of a plurality of laminates; and
arranging the plurality of laminates using the alignment feature to form the reinforcement stack.

### Claim 10 (depends on 9)

The method of claim 9, wherein the alignment feature is formed by providing at least one protrusion and at least one depression corresponding to the at least one protrusion on the at least one laminate.

### Claim 11 (depends on 10)

The method of claim 10, wherein a plurality of protrusions and plurality of depressions are distributed symmetrically about a centerline of the laminate.

### Claim 12 (depends on 9)

The method of claim 9, wherein the alignment feature comprises a peak of a chevron geometry of each of the plurality of laminates.

### Claim 13 (depends on 12)

The method of claim 12, wherein the chevron geometry of each laminate is formed symmetrically about a centerline of the laminate.

### Claim 14 (depends on 9)

The method of claim 9, wherein the alignment feature allows for each of the plurality of laminates to be aligned along a centerline of the plurality of laminates.

### Claim 15 (depends on 9)

The method of claim 9, the wherein the plurality of stacked laminates comprises a substantially rectangular geometry.

### Claim at position 16

-33. (canceled)

### Claim 34

A spoolable pipe comprising:
a liner;
one or more armor layers disposed external to the liner; and
an outer jacket disposed external to the one or more armor layers,
wherein at least one of the one or more armor layers comprises:
a plurality of laminates stacked to form a reinforcement stack of the armor layer,
wherein at least one of the plurality of laminates comprises an alignment feature configured to align adjacent laminates.

### Claim 35 (depends on 34)

The spoolable pipe of claim 34, wherein the alignment feature comprises at least one protrusion and at least one depression corresponding to the at least one protrusion.

### Claim 36 (depends on 35)

The spoolable pipe of claim 35, wherein the at least one protrusion and the at least one depression are distributed symmetrically about a centerline of the laminate.

### Claim 37

(canceled)

### Claim 38

(canceled)

### Claim 39 (depends on 34)

The spoolable pipe of claim 34, wherein the alignment feature is configured to align each of the plurality of laminates along a centerline of the plurality of laminates.

### Claim 40 (depends on 34)

The spoolable pipe of claim 34, wherein the alignment feature comprises a geometric upset in a thickness direction of each of the plurality of laminates.

### Claim at position 24

-49. (canceled)