Patent No. EP4387846 (titled "Fixing Device For A Self-Inking Stamp") was filed by Colop Stempelerzeugung Skopek Gesellschaft on Aug 19, 2022. The application was issued on May 14, 2025.
A fixing device for self-inking stamps that maintains reliable closure over the entire operating temperature range. The device features a locking element that engages with both the actuating part of the stamp and the housing, providing a secure clamping action that prevents unintended release. This design ensures consistent performance even when the stamp components soften due to elevated temperatures.

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