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Dust collection unit for use in vacuum cleaner and main body of vacuum cleaner having the same

  • US 6,901,625 B2
  • Filed: 05/21/2002
  • Issued: 06/07/2005
  • Est. Priority Date: 10/09/2001
  • Status: Expired due to Fees
First Claim
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1. A dust collection unit for use in a vacuum cleaner, comprising:

  • a cylindrical casing in which air introduced through an inlet port is formed into spiral flow and of which an upper end is open;

    a cover for opening and closing the upper end of the casing;

    a filter which is installed on a bottom surface of the cover and formed in the shape of a cylinder having a predetermined length and by which fine foreign substances can be filtered out when the air is introduced into the filter from the exterior thereof, and through which the air is discharged downwardly; and

    an exhaust duct which comes into close contact with a bottom surface of the filter and including an exhaust port on a side surface of the casing to discharge the air from the filter to the exterior of the casing.

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