Negative pressure well in the tunnel
CN309827030SActive Publication Date: 2026-03-03SHANGHAI ZTEC ENVIRONMENTAL S & T CO LTD +1
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-17
- Publication Date
- 2026-03-03
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Figure 000001_ABST
Abstract
1. Name of the product in this design: Negative Pressure Well in a Tunnel. 2. Purpose of this design: A device for collecting, temporarily storing, and transferring wastewater under negative pressure. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.
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