Membrane closure for dry composting toilets
The flexible membrane closure for dry composting toilets addresses liquid spillage and odor issues by automatically sealing and disassembling easily, improving maintenance and hygiene in dry composting toilets.
Patent Information
- Application Number
- DE202025003082
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-10-15
- Publication Date
- 2026-02-26
- Estimated Expiration
- 2035-10-31
AI Technical Summary
Existing dry composting toilets face issues with liquid spillage, leakage, and odor formation due to inadequate sealing mechanisms, particularly in confined spaces, making maintenance and cleaning difficult.
A flexible membrane closure made of TPE, TPU, or comparable elastomers that opens and closes automatically in response to liquid flow, equipped with a disassembly tab for easy removal and cleaning, and optional integrated seals for enhanced splash and odor protection.
Prevents spillage and odor formation while simplifying maintenance and cleaning by ensuring reliable sealing and easy disassembly, enhancing hygiene and durability.
Smart Images
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Abstract
Description
[0001] The invention relates to a membrane closure for dry composting toilets, in particular for use in urine or liquid drainage systems.
[0002] The membrane closure consists of a flexible material, preferably TPE, TPU, or a comparable elastomer. The membrane opens due to the hydrostatic pressure of the incoming liquid and closes automatically after the flow has ceased. This reliably prevents spillage and leakage of liquids, as well as the formation and spread of unpleasant odors.
[0003] In contrast to the prior art, the membrane closure according to the invention is specifically designed for use in drain pipes and allows for easy disassembly. For this purpose, the membrane has a specially designed disassembly tab on its upper surface, which allows the component to be removed from the pipe without tools. This design significantly simplifies maintenance and cleaning, especially in confined installation situations. The tab can also be used for direct mounting on the urine container to ensure equally easy removal and cleaning.
[0004] Alternatively, the membrane closure can also be designed for direct mounting on the collection basin. In these versions, laterally positioned inlet openings allow liquid to enter, while the membrane closes automatically, thus preventing backflow, sloshing, and odor formation.
[0005] Another embodiment provides that the end section is equipped with an integrated seal which, when inserted, rests elastically against the inlet nozzle. This variant offers improved splash and odor protection, particularly in shallow containers.
[0006] The membrane closure according to the invention thus combines a self-closing membrane with a device for easy disassembly, creating a durable, hygienic and maintenance-friendly solution for use in dry separating toilets.
Claims
[1] (Main claim - Pipe assembly according to the invention): Membrane closure for dry separating toilets, comprising an elastic membrane made of flexible material which opens by the pressure of an inflowing liquid and closes automatically after the flow, characterized by , that the membrane closure is designed for installation in the drain pipe and the membrane has a ridge on its upper side designed for simplified disassembly, which allows the component to be removed from the pipe without tools, preventing spillage of liquid and the formation of unpleasant odors. [2] (Variant for pool mounting): Membrane closure according to claim 1, characterized by that the membrane is intended as an alternative to direct mounting on the collection basin and has inlet openings arranged laterally on its upper side, through which the liquid enters. [3] (Variant canister assembly): Membrane closure according to claim 1, characterized by , that the disassembly bridge is also provided when the membrane is mounted directly on a urine canister, in order to facilitate removal and cleaning. [4] (Variant with integrated seal): Membrane closure according to one of the preceding claims, characterized by , that the end area is provided with an integrated seal which, when inserted, rests elastically against the inlet nozzle, thereby providing improved splash and odor protection.