Benteler International has been granted a patent for a tubular element in gas pressure containers for airbag systems in motor vehicles. The element is made of a specific alloy with precise composition and unique design features, including varying wall thickness and outer radius sections for enhanced strength and performance. GlobalData’s report on Benteler International 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 Benteler International, Stabiliser bar type suspensions was a key innovation area identified from patents. Benteler International's grant share as of February 2024 was 60%. Grant share is based on the ratio of number of grants to total number of patents.

High-strength tubular element for airbag gas pressure container

Source: United States Patent and Trademark Office (USPTO). Credit: Benteler International AG

The granted patent (Publication Number: US11913101B2) discloses a tubular element designed for a gas pressure container in an airbag system of a motor vehicle. The tubular element consists of at least two first length sections and at least one recess extending in the circumferential direction. Notably, the tubular element includes a second length section formed by the recess, lying between the first length sections. The material composition of the tubular element is crucial, with a tensile strength exceeding 920 MPa and specific alloying elements within defined weight percentages. Additionally, the wall thickness in the second length section is thicker or equal to that of the first length sections, ensuring structural integrity.

Furthermore, the patent claims highlight variations in the degree of reduction of the outer radius in the recess, ranging from 5 to 35% relative to the first length sections. The design also incorporates tapering third length sections between the first and second length sections, with specific outer radius parameters. The tubular element is specified to be free from near-surface tube defects and can be made of a welded tube with stringent crack length requirements in the welding seam and heat-affected zone. The patent extends to cover a gas pressure container for an airbag system in a motor vehicle, emphasizing the utilization of the unique tubular element design outlined in the claims. Overall, the patent aims to enhance the safety and performance of gas pressure containers in airbag systems through the innovative tubular element configuration and material composition specified in the claims.

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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.