Invention Grant
- Patent Title: Four-directional drilling machine
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Application No.: US15692751Application Date: 2017-08-31
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Publication No.: US10286457B2Publication Date: 2019-05-14
- Inventor: Jinling Yang , Li Yang , Yingfeng Wang , Jiansheng Wang , Bicheng Ding , Yongwang Zhao
- Applicant: CITIC Dicastal CO., LTD
- Applicant Address: CN
- Assignee: CITIC DICASTAL CO., LTD
- Current Assignee: CITIC DICASTAL CO., LTD
- Current Assignee Address: CN
- Agency: Calfee, Halter & Griswold LLP
- Priority: CN201710348196 20170517
- Main IPC: B23B39/16
- IPC: B23B39/16 ; B23B41/12

Abstract:
The present application discloses a four-directional drilling machine, comprising a main frame, a main machine platform, flange-type hydraulic cylinders, linear bearings, hydraulic piston rods, guide rods, nuts A, an upper pressure plate, drill bushings A, nuts B, monoblock drilling machines A, an upper supporting plate, positioning stop blocks, adjustable base assemblies, a left supporting plate, a drill bushing B, a right supporting plate and the like.
Public/Granted literature
- US20180333788A1 FOUR-DIRECTIONAL DRILLING MACHINE Public/Granted day:2018-11-22
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