Drill bit (pressure relief drilling)
CN310145940SActive Publication Date: 2026-08-14济宁市煤矿安全生产监测监控中心 +1
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-04
- Publication Date
- 2026-08-14
Smart Images
Figure 000007_ABST
Abstract
1. Name of the product in this design: Drill bit (pressure relief drilling). 2. Purpose of this design: Directional drill bit for pressure relief holes in coal mine roadways. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.
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