![]() bend, a suction inlet for drawing in dredged gravel and a connection to a hose for carrying a mixture of gravel and water to a sluice or the like. The suction nozzle contains a suction tube having an approximate 30.degree. Many amateur and professional prospectors use such devices while prospecting for gold. One known aspirator, manufactured by Keene Engineering, called a suction nozzle, is a relatively simple device which can be connected to a suction hose or tube to aspirate or dredge gravel. There exists a need for an efficient, yet inexpensive aspirator capable of aspirating a conveying fluid containing solid particles. However, such known devices are expensive and complex. Various means are utilized to exhaust the conveying fluid and solid particles therein from the vortex. 3,856,651 and 4,028,009, operate to create vortexes having low pressure vortex "cores" creating suction which conveys fluid containing solid particles, such as slurry or dredged material, into the vortex. Some of the known devices, such as those shown in U.S. Various aspirators, sump pumps, jet pumps, dredging devices, and the like, are known in the prior art. The invention relates to aspirators, and more particularly, to centrifugal aspirators capable of efficiently aspirating a conveying fluid containing solid particles.
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