Bottle cap with carabiner attachment and antimicrobial properties
Patent Information
- Application Number
- DE202025001070
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2025-10-02
- Estimated Expiration
- 2035-04-30
Smart Images

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Abstract
Description
[0001] The invention is based on the object of creating a reusable bottle cap that protects bottles with crown caps from contamination such as insects, dust and dirt, can be carried on the move and enables hygienic handling.
[0002] Drinking bottles with crown caps are often used outdoors, at events, or in private settings. Simple silicone lids are available to protect against contamination, but these do not offer safe transport or functional features such as handles or protective surfaces. Furthermore, common solutions lack antimicrobial properties.
[0003] The invention solves this problem with a bottle cap made of flexible, elastic material that fits tightly over a crown cap, reliably sealing the bottle opening. An integrated eyelet or tab allows for attachment to a key ring or carabiner, ensuring the cap is always within easy reach and won't get lost.
[0004] Hygienic handling is enhanced by a finger guard that allows for safe opening and removal of the lid without having to directly touch the bottle opening. The material used has antimicrobial properties, so the surface supports a self-cleaning effect.
[0005] The lid's design makes it robust, flexible, easy to clean, and particularly suitable for mobile outdoor use. In a further configuration, the lid can be personalized or labeled with laser engraving. An alternative, cost-effective option is made from recycled material with appropriate labeling and a note confirming its safety.
Claims
[1] Bottle cap for closing beverage bottles with crown caps, characterized by that the lid is made of a flexible, antimicrobial material and that the lid fits snugly over the bottle opening. [2] Bottle cap according to claim 1, characterized by that an integrated opening or eyelet is provided through which the lid can be connected to a carabiner or key ring. [3] Bottle cap according to one of the preceding claims, characterized by that the lid has a tab or finger guard that allows the lid to be removed from the bottle cap without the user having to directly touch the drinking opening. [4] Bottle cap according to one of the preceding claims, characterized by that the material of the lid is UV-resistant, temperature-resistant and reusable. [5] Bottle cap according to one of the preceding claims, characterized by that an area for customisation is provided on the top of the lid, in particular for laser engraving or printing. [6] Bottle cap according to one of the preceding claims, characterized by that the lid is made of recycled TPU in a cost-effective design and is laser-marked with a recycling symbol, a crossed-out glass and fork symbol, a utility model reference and the note “safe for use”.