United States
US 12,703,021 B2
Method for production of a steel tubular product, in particular an airbag tubular product, and a steel tubular product produced using this method, in particular an airbag tubular product
US 12,703,021 B2 is a granted patent from the United States Patent and Trademark Office (USPTO), dated 2026-08-11. Applicant: BENTELER STEEL/TUBE GMBH. Its PDF downloads from this page without an account, up to 5 a day.
- Applicant
- BENTELER STEEL/TUBE GMBH
- Inventors
- DANIEL LUECKE; DIRK TEGETHOFF; MARCEL WELLPOTT
- Publication date
- 2026-08-11
- Filing date
- 2022-08-22
- Document type
- B2 Granted patent
- Also written as
- US 12,703,021 B2 · US12703021 · 12703021
Abstract
The present invention provides a method for producing a steel tubular product which includes shaping a steel tube into a pre-geometry by non-rotationally and axially moving the steel tube into an outer tool to reduce an outer diameter of the pre-geometry in an end region in the outer tool. An inner diameter is calibrated with the pre-geometry arranged within the outer tool by introducing an inner mandrel into the end region of the pre-geometry, and pressing against the outer tool to calibrate the inner diameter via a shaping.…
The opening of the abstract. The full text is in the PDF.
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Patent office website: United States Patent and Trademark Office (USPTO)
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