Cluster-type down-the-hole hammer (reverse circulation)
CN310210444SActive Publication Date: 2026-09-18HAOZHOU DRILLING ENGINEERING MACHINERY (SHANDONG) CO LTD
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Patent Information
- Application Number
- CN202630187832.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-21
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2041-04-21
Smart Images
Figure 000007_ABST
Abstract
1. Name of the product in this design: Cluster Down-the-Hole Hammer (Reverse Circulation). 2. Application of this design: for drilling in hard and complex rock formations. 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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