Vinci has been granted a patent for a method of mounting a roof structure for an enclosure. The method involves assembling a tension ring at ground level, attaching second cables to connectors on the tension ring, and lifting the tension ring by pulling the connectors with the second cables. This innovative method allows for the efficient installation of roof structures in enclosures with a ground area and spectator area. GlobalData’s report on Vinci gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Vinci, Prosthetic cardiac valves was a key innovation area identified from patents. Vinci's grant share as of September 2023 was 63%. Grant share is based on the ratio of number of grants to total number of patents.

Method of mounting a roof structure for an enclosure

Source: United States Patent and Trademark Office (USPTO). Credit: Vinci SA

A recently granted patent (Publication Number: US11725383B2) describes a method for mounting a roof structure for an enclosure. The enclosure includes a ground area, a spectator area, and multiple bearing points. The method involves assembling a tension ring at the ground level, which consists of a first cable and several connectors spaced along the ring. Second cables are attached to the connectors and extend radially outward, with each cable associated with a bearing point. The tension ring is then lifted by pulling the connectors using the second cables.

In one aspect of the method, the perimeter of the tension ring increases as it is lifted. To achieve this, a third cable is disposed along the tension ring at the ground level, defining its perimeter. Additional length of the third cable is fed along the tension ring during the lifting process to increase the perimeter.

The first cable is initially in a loose state when the tension ring is assembled at the ground level. However, it becomes tensioned once the perimeter of the tension ring reaches its maximum value due to the pulling action of the second cables. The first cable is also designed to have a sinuous path when assembled at the ground level.

The third cable is mounted on deviators attached to the front sides of the connectors. To feed additional length of the third cable along the tension ring, a strand jack mounted on the third cable is used.

The first cable consists of multiple segments that are assembled using couplers. These couplers have abutment surfaces that come closer to each other as the tension ring is lifted.

The lifting of the tension ring involves two phases. In the first phase, the second cables are pulled while maintaining a constant perimeter, resulting in a decrease in the inclination angle of the cables and the lifting of the tension ring. In the second phase, the perimeter of the tension ring is increased without pulling the second cables, causing an increase in the inclination angle and the lowering of the tension ring. The first phase results in a greater lifting of the tension ring compared to the lowering in the second phase.

After the tension ring is lifted, the second cables are anchored either at the bearing points or at positions spaced apart from the bearing points and deviated at the bearing points.

Overall, this patented method provides a systematic approach to mounting a roof structure for an enclosure, ensuring stability and adjustability during the lifting process.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.