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Title:
DEVICE FOR MONITORING FRACTURING OF STEM OF VALVE DRIVER
Document Type and Number:
WIPO Patent Application WO/2017/034061
Kind Code:
A1
Abstract:
A device for monitoring fracturing of a stem of a valve driver is fixed to at least one of a driving stem and a valve stem of a valve driver, diagnoses or predicts fracturing of the driving stem or the valve stem, and comprises upper and lower fixing portions and a plurality of post portions. The upper and lower fixing portions are spaced from each other by a predetermined distance. The plurality of post portions have both ends fixed to the upper and lower fixing portions, respectively, and extend in a direction parallel with the direction of extension of the driving stem or the valve stem.

Inventors:
LEE, Sang-hyuk (1 61, Baeul 2-roYuseong-gu, Daejeon 305-793, 305-793, KR)
KIM, Dae-hwan (1-303, 15 Banghwa-daero 37-gil,Gangseo-gu, Seoul, 07605, KR)
LEE, Tae-hyun (413-203, 70 Neuti-ro, Bundang-gu,Seongnam-si, Gyeonggi-do, 13611, KR)
RYU, Kyung-ha (204-804, 13 Baeul 1-ro,Yuseong-gu, Daejeon 305-742, 305-742, KR)
KIM, Sang-kyo (20 Sinheung-ro 317beon-gil, Uijeongbu-si, Gyeonggi-do 1665, 1665, KR)
KIM, Jae-hyung (1 725, Dongseo-daeroYuseong-gu, Daejeon 305-315, 305-315, KR)
KIM, Young-joong (104-1503, 38 Yuseong-daero 783beon-gil,Yuseong-gu, Daejeon, 34165, KR)
Application Number:
KR2015/009095
Publication Date:
March 02, 2017
Filing Date:
August 28, 2015
Export Citation:
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Assignee:
KOREA INSTITUTE OF MACHINERY & MATERIALS (156 Gajeongbuk-ro, Yuseong-gu, Daejeon 305-343, 305-343, KR)
International Classes:
F16K35/00; F16K37/00; G01B5/30
Domestic Patent References:
WO1988008491A11988-11-03
WO2002084157A12002-10-24
Foreign References:
US5111690A1992-05-12
US4879901A1989-11-14
US5747697A1998-05-05
Attorney, Agent or Firm:
KIM, Min-tae (5F Seil Building, 414 Nonhyeon-ro,Gangnam-gu, Seoul 135-080, 135-080, KR)
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