Jacking method and apparatus

Details Jacking method and apparatus Jacking method and apparatus

2006-03-14

2006-03-14

Lee, Jong-Suk (James) (Department: 3673)

Hydraulic and earth engineering

Marine structure or fabrication thereof

With work deck vertically adjustable relative to floor

C405S195100, C405S196000, C254S095000, C254S105000

Reexamination Certificate

active

07011471

ABSTRACT:
A jacking method and apparatus for a heavily loaded platform includes hydraulic continuous linear motion motors, preferably comprising a plurality of phased hydraulic piston/cylinder units, that are engaged to drive the heavily loaded platform to provide relative motion of the platform with respect to a platform support, and to also hold the platform in a selected stationary position. In the preferred jack-up system, the number of hydraulic piston/cylinder units and the number and design of the teeth that are engaged in providing relative motion may be combined to substantially reduce material stresses on the system.

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