Invention Grant
- Patent Title: Compass and clinometer apparatus having the compass
- Patent Title (中): 指南针和测光仪器具有指南针
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Application No.: US13931230Application Date: 2013-06-28
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Publication No.: US09360313B2Publication Date: 2016-06-07
- Inventor: Kihm You-Hong
- Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES
- Applicant Address: KR Daejeon
- Assignee: Korea Institute of Geoscience and Mineral Resources
- Current Assignee: Korea Institute of Geoscience and Mineral Resources
- Current Assignee Address: KR Daejeon
- Agency: Norton Rose Fulbright US LLP
- Priority: KR10-2012-0071685 20120702
- Main IPC: G01C17/06
- IPC: G01C17/06 ; G01C9/02 ; G01C17/00 ; G01C9/34 ; G01C17/16

Abstract:
A compass includes a case, a first support shaft, a second support shaft, and a needle. The case includes an upper plate, a lower plate, and a side wall that connects edge portions of the upper plate and the lower plate. The first support shaft is coupled to the lower plate and protrudes toward the upper plate, and the second support shaft is coupled to the upper plate and protrudes toward the lower plate. The needle includes a support unit, a first indicator unit, and a second indicator unit. The support unit is disposed between the first support shaft and the second support shaft, and includes a first support groove that is formed close to the first support shaft and a second support groove that is formed close to the second support shaft. The first indicator unit is coupled to one side of the support unit, and the second indicator unit is coupled to the support unit to face the first indicator unit with the support unit therebetween.
Public/Granted literature
- US20140101951A1 COMPAS AND CLINOMETER APPARATUS HAVING THE COMPAS Public/Granted day:2014-04-17
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