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A sealing system for a vibratory screening machine is described. The machines may be used for either separating dry particles of different sizes or separating solids from a liquid. The seal is to overcome problems of screen wear and noise plus leakage of product. The frames of the screens are fitted
This patent is concerned with the duo-cone type of mechanical face seal that is used in earthmoving equipment applications. Elastic layers (28, 29) are used on the conical surfaces of the seal rings and housing respectively. The purpose is to inhibit entrainment of debris.
An apparatus and method for forming or repairing a well-bore casing, a pipeline, or a structural support is disclosed. An expandable tubular member is radially expanded and plastically deformed by an expansion cone that is displaced by hydraulic pressure. Before or after the radial expansion of the
This patent refers to a new arrangement for the rotor set of the water flow control valve used in automotive cooling or air conditioning systems. The main novelty here is an arrangement of springs which are assembled in the O-ring carrier to provide mechanical robustness and assure elastic character