Bolt With An Adjustable Clamping Region

Patent No. EP4051912 (titled "Bolt With An Adjustable Clamping Region") was filed by Bernd Siegmund on Nov 2, 2019. The application was issued on Dec 17, 2025.

Patent Summary

A bolt (1) for clamping abutting parts (19, 20) with openings (21, 22) comprises a bolt-like part (2) insertable into said openings. A threaded sleeve (5), projecting radially beyond the bolt-like part, is longitudinally adjustable and fixable via an internal thread (6) engaging an external thread (7) on the bolt-like part's outer side. At the end opposite the sleeve, at least one clamping element (4) is positioned inside the bolt-like part, movable beyond its outer circumference through at least one opening (9) via an actuator (11). The bolt-like part includes components without external threads extending at least partially into each abutting part. The threaded sleeve (5) features a projection (23) with an outer circumference matching the bolt-like part, insertable into one opening.

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EP4051912

BERND SIEGMUND
Application Number
EP19808978A
Filing Date
Nov 2, 2019
Status
Granted And Under Opposition
Nov 14, 2025
Publication Date
Dec 17, 2025