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US 5,676,427 AGranted
Apparatus for hydraulically splitting up rock
OwnerJong Su Hainventor
Life of this patent
Estimating the term…
Abstract
An apparatus for hydraulically splitting up rock includes a hydraulically operated piston-cylinder assembly as an oil delivering and controlling part. A split pair of thrust members accommodates an elastic rubber tube, a pair of expanding inserts and a pair of holding bushings. This apparatus may be applied in construction, tunnel mining, quarry mining, demolition of reinforced concrete foundations and so on.
Claims2
An apparatus for hydraulically splitting up rock comprising:
- a longitudinally split casing,
- wings at opposite ends of said split casing, each portion of said split casing having two annular grooves,
- a rubber tube having a jagged surface and an inclined surface at both ends thereof,
- a pair of inserts having trapezoidal cross-sections and located along a parting plane splitting said casing,
- a pair of bushings, each of said bushings having a jagged inner surface and an inclined inner surface accommodating one end of said rubber tube,
- a cap disposed at one end of each of said bushings,
- a pair of guiders having two guiding faces and one ring, and
- a bolt with an inclined surface at its summit closing off another end of each of said bushings.
5 more elements
Dependencies are inferred from the claim text.