Patent and technical-development records
patents
Browse published patent-related records connected to drill-bit structures, manufacturing methods and production equipment. Confirm certificate and patent-number details with FengSu when formal documentation is required.
Published records
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High-Efficiency Inspection Device for Drill Bit Production
[Utility Model] High-efficiency inspection device for drill bit production Authorization Announcement Number:CN216205895UAuthorization Announcement Date:2022.04.05Application Number:2021219046680Application Date:2021.08.16Patentee:Qidong County Fengsu Drilling Tools Co., Ltd.Inventors:Li Xiaohuan; Zou Chao; Li ZhongyongAddress:No. 101 Baihe Group, Baijia Village, Baihe Street...
Quality Inspection Device for Drill Bit Production
[Utility Model] Quality inspection device for drill bit production Authorization Announcement Number:CN215572737UAuthorization Announcement Date:2022.01.18Application Number:2021220542681Application Date:2021.08.30Patentee:Qidong County Fengsu Drilling Tools Co., Ltd.Inventors:Li Xiaohuan; Zou Chao; Li ZhongyongAddress:No. 101 Baihe Group, Baijia Village, Baihe Street...
Diamond Composite Core-Drilling Bit for Easy Advancement
[Utility Model] Diamond composite sheet core-drilling bit for easy advancement Authorization Announcement Number:CN207728312UAuthorization Announcement Date:2018.08.14Application Number:2017215725898Application Date:2017.11.22Patentee:Qidong County Fengsu Drilling Tools Co., Ltd.Inventor:Li Xiaohuan; Zou Chao; Li ZhongyongAddress:No. 178, Nanshan Road, Hongqiao Town, Qidong...
Rock Drill Bit: Boost Precision, Reduce Deviation
The invention provides a rock geological drill bit designed to reduce deviation, related to the field of drill bits. The drill bit includes a body with a protective cylinder at the top,...
Automatic polishing device for drill bit production
[Utility Model] Automatic polishing device for drill bit production Authorization Announcement Number:CN215470402UAuthorization Announcement Date:2022.01.11Application Number:2021220542677Application Date:2021.08.30Patentee:Qidong County Fengsu Drilling Tools Co., Ltd.Inventors:Li Xiaohuan; Zou Chao; Li ZhongyongAddress:No. 101 Baihe Group, Baijia Village, Baihe Street...
High-Strength pdc Drill Bit: Manufacturing Method
[Invention Announcement] A high-strength diamond drill bit and manufacturing method Application Publication Number:CN112139565AApplication Publication Date:2020.12.29Application Number:2020109160393Application Date:2020.09.03Applicant:Qidong County Fengsu Drilling Tools Co., Ltd.Inventors:Zou Chao; Li Zhongyong; Chen PengAddress:No. 101 Baihe Group, Baijia Village,...
Composite Geological Drill Bit with Anti-Sand Blocking Features
[Invention Announcement] A composite geological drill bit with anti-sand blocking features Application Publication Number:CN112177531AApplication Publication Date:2021.01.05Application Number:2020109160478Application Date:2020.09.03Applicant:Qidong County Fengsu Drilling Tools Co., Ltd.Inventors:Zou Chao; Li Zhongyong; Chen PengAddress:No. 101 Baihe Group, Baijia...