Drinking containers with differentiated opening diameters, removable bottom closure and plastic-free media-contacting sealing surfaces.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- HOLZHÄUER AARON
- Filing Date
- 2026-03-02
- Publication Date
- 2026-05-07
AI Technical Summary
Existing drinking containers made of plastic, stainless steel, or glass suffer from odor absorption, mechanical aging, microplastic release, single opening limitations, and poor cleaning/mixing experiences.
A drinking container design with a small upper opening, large lower opening, fully removable base, and media-free plastic surfaces, using stainless steel for contact surfaces and silicone seals, with optional neoprene protection and a mixing element.
Provides improved cleaning, mixing, and drinking experience while avoiding plastic contact, reducing mechanical aging and microplastic release, and enhancing user convenience.
Smart Images

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Abstract
Description
Technical field
[0001] The invention relates to a drinking container (1), in particular for holding beverages and powdered substances mixable with liquids, comprising a container body (2) with an upper drinking opening and an additional lower opening. State of the art
[0002] Plastic shakers are known to absorb odors, age mechanically, and potentially release microplastics.
[0003] Furthermore, stainless steel containers are known in which the media-contacting areas of the closures are made of plastic.
[0004] Glass bottles usually have only one opening.
[0005] A small opening makes cleaning and powder filling difficult. A large opening worsens the drinking experience.
[0006] A combination of: • small drinking opening, • large floor opening, • fully removable base, • as well as media-free plastic areas in the closures is unknown. Illustration of the invention Figure 1
[0007] Illustration of the drinking container in its assembled state. Figure 2
[0008] Exploded view with upper and lower closures removed. Figure 3
[0009] Sectional view showing the media-contact surfaces. Detailed description of the invention
[0010] The drinking container (1) comprises a substantially rotationally symmetrical container body (2). This container body (2) is preferably made of glass, but can also be made of stainless steel or another tasteless and food-safe metal.
[0011] At the top end, a first, relatively small drinking opening (3) is provided.
[0012] This can be closed with a screw cap (4) at the top.
[0013] At the lower end a second opening (5) is provided, the diameter of which is larger than the diameter of the upper drinking opening (3).
[0014] This second opening (5) can be closed with a lower screw cap (6), which in the assembled state forms the base of the drinking container (1) and is completely removable. Thread design
[0015] The upper drinking opening (3) has an external thread (7) or internal thread which corresponds to the upper screw cap (4).
[0016] The lower opening (5) has a thread (8) which interacts with the lower screw cap (6). Media-contact surfaces
[0017] A key aspect of the invention is that all surfaces of the closures that come into contact with the liquid during intended use are not made of plastic.
[0018] The upper screw cap (4) has a media-contacting inner element (9) for this purpose.
[0019] The lower screw cap (6) has a media-contacting inner element (10).
[0020] These internal elements (9, 10) are made entirely or predominantly of stainless steel or a similarly hygienic, tasteless and corrosion-resistant material.
[0021] Plastic components (11) may be provided in the closures for structural stabilization or thread guidance, but are arranged in such a way that they do not come into contact with the beverage or the drinking stream. seal
[0022] Sealing elements (12), in particular made of silicone, are arranged between the container body (2) and the screw closures (4, 6). Protective function of the lower closure
[0023] The lower screw cap (6) can have a metallic outer shell (13) which, particularly in the design of the container body (2) made of glass, serves as a shock-absorbing protective element. Optional version - protective cover
[0024] The drinking container (1) may further comprise a removable elastic sleeve (14), in particular made of neoprene.
[0025] The sleeve (14) provides additional breakage protection and thermal insulation. Optional embodiment - mixing element
[0026] Inside (15) of the container body (2) a mixing element (16), in particular a spring-like stainless steel mixing element, can be arranged which improves the mixing of liquids and powders. Reference symbol list 1 drinking container 2 container bodies 3 upper drinking opening 4 top screw cap 5 lower opening 6 lower screw cap 7 threaded top opening 8 threads lower opening 9 Media-contacting inner element upper cover 10 Media-contacting inner element lower cover 11 non-media-contacting plastic components 12 Sealing element (silicone) 13 metallic outer shell floor 14 Neoprene Sleeves 15 Interior 16 Mixing element
Claims
[1] Drinking container (1) comprising: a container body (2), a drinking opening (3) arranged at a first end with an upper screw cap (4), an opening (5) arranged at a second end opposite the first end, with a larger diameter than the drinking opening (3), a lower screw cap (6) which, when assembled, forms the base area and is completely removable, wherein all media-contacting surfaces of the screw closures (4, 6) consist of a non-plastic-based material. [2] Drinking container according to claim 1, characterized by , that the container body (2) is made of glass, stainless steel or another metallic material. [3] Drinking container according to any one of the preceding claims, characterized by , that the media-contacting internal elements (9, 10) are made of stainless steel. [4] Drinking container according to any of the preceding claims, characterized by , that plastic components (11) are arranged outside the media-contacting areas. [5] Drinking container according to any one of the preceding claims, characterized by , that the diameter of the drinking opening (3) is between 20 mm and 45 mm. [6] Drinking container according to any one of the preceding claims, characterized by , that an elastic sleeve (14), in particular made of neoprene, is provided. [7] Drinking container according to any one of the preceding claims, characterized by , that a mixing element (16) is arranged in the interior (15).