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Variable diameter aspirating tip

  • US 4,204,328 A
  • Filed: 11/14/1977
  • Issued: 05/27/1980
  • Est. Priority Date: 11/14/1977
  • Status: Expired due to Term
First Claim
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1. A variable diameter aspirator tip adapted to be connected to the end of a suction hose connected to a source of negative pressure comprising,a conduit having an inlet end and an outlet end,said outlet end being adapted to connected to a suction hose,a flexible nozzle tip connected to said inlet end of said conduit,said nozzle tip having orifice opening capable of expanding between a minimum and maximum diameter,a sliding means slidably disposed with said nozzle tip for expanding said orifice opening between said minimum and maximum diameter,and an actuator connected to said sliding means for shifting said sliding means relative to said nozzle for expanding said orifice opening accordingly,wherein said sliding means comprises a ring slidably disposed within said nozzle, said ring having a diameter substantially equal to the maximum diameter orifice opening:

  • and said actuator being connected to said ring for slidably displacing said ring relative to said nozzle whereby the displacement of said ring relative to said flexible nozzle causes said orifice to expand between a minimum and maximum diameter.

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