Underground large-diameter pipe-following rescue rig
CN309391847SActive Publication Date: 2025-07-18XIAN RES INST OF CHINA COAL TECH & ENG GRP CORP
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Patent Information
- Application Number
- CN202430688784.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2039-10-31
Smart Images
Figure 000007_ABST
Abstract
1. Name of the Design Product: Downhole Large-diameter Pipe-following Rescue Drilling Rig. 2. Use of the Design Product: For drilling emergency rescue in mine and tunnel collapse accidents, and for engineering construction such as connecting lanes, ventilation holes, drainage holes, and cable laying holes in coal mines. 3. Design Key Points of the Design Product: Lies in the combination of shape and color. 4. Picture or Photo that Best Illustrates the Design Key Points: Stereogram. 5. The claimed design includes color.
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