Title:
AIR LIFTING SYSTEM HAVING PISTON LOCKING MEANS
Document Type and Number:
WIPO Patent Application WO/2012/150753
Kind Code:
A1
Abstract:
An air lifting system with a piston locking means capable of locking the piston firmly at the position where the piston reached is disclosed. The air lifting system includes a piston locking means which can fix the piston, which is elevated while lifting objects to support, firmly by constraining fastening groove which is provided on the outer periphery of the piston at the elevated position.
Inventors:
PARK YOUNG BONG (KR)
PARK HYUNG KUN (KR)
KIM TAE HO (KR)
KIM TAE GEOL (KR)
CHOI AE JIN (KR)
LEE SUN HWA (KR)
CHOI EUN SEOK (KR)
PARK HYUNG KUN (KR)
KIM TAE HO (KR)
KIM TAE GEOL (KR)
CHOI AE JIN (KR)
LEE SUN HWA (KR)
CHOI EUN SEOK (KR)
Application Number:
PCT/KR2011/010251
Publication Date:
November 08, 2012
Filing Date:
December 28, 2011
Export Citation:
Assignee:
DAEJIN HYDRAULIC EQUIPMENT & TOOLS (KR)
PARK YOUNG BONG (KR)
PARK HYUNG KUN (KR)
KIM TAE HO (KR)
KIM TAE GEOL (KR)
CHOI AE JIN (KR)
LEE SUN HWA (KR)
CHOI EUN SEOK (KR)
PARK YOUNG BONG (KR)
PARK HYUNG KUN (KR)
KIM TAE HO (KR)
KIM TAE GEOL (KR)
CHOI AE JIN (KR)
LEE SUN HWA (KR)
CHOI EUN SEOK (KR)
International Classes:
B66F3/30; B66F3/28; F15B20/00
Domestic Patent References:
| WO1997012829A1 | 1997-04-10 |
Foreign References:
| KR101010582B1 | 2011-01-24 | |||
| JPH0630793Y2 | 1994-08-17 | |||
| JPH0740687U | 1995-07-21 |
Attorney, Agent or Firm:
PARK, Youn Ho (1716-4Seocho-dong, Seocho-ku, Seoul 137-885, KR)
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Claims: