Protective device for the suspension bearings of the core tube in the case of core drill bits

• 1. 一种取芯钻头、应用该钻头的年轮芯取芯电钻、取芯方法 [P] . 中国专利： CN106142227B . 2018.07.13
• 2. 一种取芯钻头、应用该钻头的年轮芯取芯电钻、取芯方法 [P] . 中国专利： CN106142227A . 2016-11-23
• 3. Core drill bit having a helical tube-shaped drill shaft and a method of manufacturing a helical tube-shaped drill shaft for a core drill bit [P] . 日本专利： JP2020503181A . 2020-01-30

  机译： 具有螺旋管状钻头的岩心钻头和制造用于岩心钻头的螺旋管状钻头的方法

• 4. Core Bit Having a Spiral-Tube-Shaped Drill Shaft, and Method for Producing a Spiral-Tube-Shaped Drill Shaft for a Core Bit [P] . US2021129234A1 . 2021-05-06

  机译： 具有螺旋管形钻轴的芯钻头，以及用于芯钻头的螺旋管形钻头的方法

• 5. Corer comprises outer tube carrying drill bit at front end and inner tube containing two sleeves through which core sample can slide, locking means preventing sleeves sliding in inner tube [P] . BE1014459A3 . 2003-10-07

  机译： Corer包括在前端装有钻头的外管和内管，内管包含两个可让岩心样品滑动的套管，锁定装置可防止套管在内管中滑动

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• 4. Optimization of Suspension Culture Conditions for Hairy Roots of Aconitum coreanum （ Levi. ） Raipaics [J] . Changyu LI, Shubo LU, Xiangyi KONG, 农业生物技术：英文版 . 2013,第004期
• 5. Mars drill for the Mars sample return mission with a Brushing and Abrading bit, regolith and powder bit, core PreView Bit and a coring bit [C] . Zacny K., Paulsen G., Chu P., Aerospace Conference, 2012 IEEE . 2012
• 6. Development of New Techniques for Impregnated Diamond Coring Bit Wear Measurement in Conventional Rotary Drilling and Vibration Assisted Rotary Drilling. [D] . Zhang, Wei. 2010
• 7. Efficacy of a Self-Expanding Tract Sealant Device in the Reduction of Pneumothorax and Chest Tube Placement Rates after Percutaneous Lung Biopsy: A Matched Controlled Study Using Propensity Score Analysis [O] . Judy U. Ahrar, Sanjay Gupta, Joe E. Ensor, -1
• 8. Summary results of short-wave infrared spectroscopy of the gold bearing drill cores from Centennial Propalof Red Cove and of auger samples from the Orange grid; all of Popof Island of Southwest Alaska [O] . 2005

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