Conveyors: fluid current – Fluid current conveyor outlet means – With material separating receptacle
Reexamination Certificate
2005-12-13
2005-12-13
Dillon, Jr., Joe (Department: 3651)
Conveyors: fluid current
Fluid current conveyor outlet means
With material separating receptacle
C406S092000, C406S086000, C406S194000
Reexamination Certificate
active
06974279
ABSTRACT:
An ejector is configured to generate a high negative pressure capable of sucking and conveying fine metal pieces or chips, such as machinings or cuttings, for example, when using the ejector as a driving source for a fluid conveyor. The ejector includes a convergent-divergent nozzle having a throat formed between a suction port and a discharge port. Jet blowing holes are formed in the convergent-divergent nozzle to direct a jet stream from upstream of the throat to downstream of the throat, thereby forming a negative pressure. Pressure control holes open to the downstream of the jet blowing holes and are configured to communicate with a pressure space at a pressure level higher than a negative pressure formed by the jet stream and lower than a static pressure of the jet stream and the inside of the convergent-divergent nozzle.
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patent: 2002-356224 (2002-12-01), None
Morohashi Yasuo
Naruse Toshihiro
Omori Hidetoshi
Dillon, Jr. Joe
Greenblum & Bernstein P.L.C.
Trinity Inudstrial Corporation
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