| 主权项 |
1. A hydraulic fluid actuated equipment leveling assembly comprising:
(a) a plenum having a plurality of adjustment ports; (b) input means connected operatively to the plenum, said means being adapted for injecting the hydraulic fluid into the plenum, said means comprising an input port and hydraulic line combination, said combination's input port opening the plenum; (c) valve means connected operatively to the plenum, the valve means being adapted for alternatively permitting and resisting flows of the hydraulic fluid through each of the plenum's adjustment ports; (d) a plurality of telescoping pedestals, each pedestal among the plurality of telescoping pedestals being hydraulic ram actuated; (e) a plurality of hydraulic lines, each hydraulic line among the plurality of hydraulic lines having a plenum end and a pedestal end, said each hydraulic line's plenum end being in fluid communication with said each plenum adjustment port, and said each hydraulic line's pedestal end being in fluid communication with said each pedestal's hydraulic ram; and (f) fluid displacing means connected operatively to the hydraulic lines, the fluid displacing means being adapted for, upon operation of the valve means to resist the flows of the hydraulic fluid through said each plenum adjustment port, alternately drawing the hydraulic fluid out of said each pedestal's hydraulic ram and driving the hydraulic fluid into said each pedestal's hydraulic ram; wherein the valve means comprise a plate and plate moving means, the plate overlying the plenum's adjustment ports and plate moving means being connected operatively to the plate, the plate moving means further being adapted for moving the plate between raised and lowered positions, the resisting flows of the hydraulic fluid through each plenum adjustment ports occurring upon moving the plate to the lowered position, and the permitting flows of the hydraulic fluid through each plenum adjustment port occurring upon moving the plate to the raised position. |
