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|6506033||Miniature pump with ball-plate drive|
A miniature pump equipped with: a pump chamber communicated with a suction port by way of a check valve and communicated with a discharge port by way of another check valve; a driving portion for performing a pump function by increasing and decreasing a v...
|4854783||Vertical hydro-hoist with adjustable floats and method of operating the same|
A vertical hydro-hoist for conveying a slurry under pressure by using a liquid obtained from a chemical process as a driving liquid and method for operating the same, the hydro-hoist includes at least one feed chamber and a detector for detecting a relati...