"There is practically no chance communications space satellites will be used to provide better telephone, telegraph, television, or radio service inside the United States."
|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...