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Disposable bin for cyclonic vacuum

  • US 5,145,499 A
  • Filed: 02/21/1992
  • Issued: 09/08/1992
  • Est. Priority Date: 09/21/1990
  • Status: Expired due to Term
First Claim
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1. In a cleaning apparatus including a container comprising a bottom and a sidewall extending to and meeting the bottom, the sidewall having an interior surface, a dirty air inlet at an upper portion of the container spaced from the bottom which is oriented for supplying dirt laden air into the container tangentially to the interior surface of the container which has a circular cross-section and an air outlet from the container at the upper portion of the container;

  • a circular cross-sectioned cyclone having a longitudinal axis and mounted inside the container, the cyclone comprising a cyclone air inlet at an upper end having a first diameter of the cyclone in air communication with the air outlet of the container, an interior dirt rotational surface of frusto-conical shape for receiving an airflow from the air inlet and for maintaining its velocity to a cone opening smaller in diameter than the diameter of the upper end of the cyclone, the air inlet being oriented for supplying air tangentially to the surface and a cyclone air outlet communicating with the interior of the cyclone adjacent the upper end of the cyclone;

    a dirt collecting receiver means extending from the cone opening; and

    means for generating an airflow which passes through the dirty air inlet, the container, the cyclone air inlet, the cyclone, the receiver means and the cyclone air outlet, the airflow rotating around the frusto-conical interior surface of the cyclone and depositing the dirt in the receiver means, the improvement which comprises;

    (a) a cover means providing a closure for an upper end of the container, wherein the cover means removeably supports the container for disposing of dirt separated from the airflow by the container; and

    (b) a liner means having a first, rigid portion providing the receiver and a second portion wherein the receiver portion has a first sidewall between opposed ends, one of which is open and sealed to the cyclone to provide for the dirt separated from the airflow by the cyclone to accumulate in the receiver portion and wherein the second portion of the liner means has opposed ends defining a second sidewall between the ends, the second sidewall mounted along and around the longitudinal axis, inside of the interior surface of the container so that the second portion of the liner means collects dirt separated from the airflow by the container and extends to an open end of the second portion sealed at the upper end of the container, wherein the container holding the second portion is removeable from the cover means and the receiver portion is removeable from the sealed relationship with the cyclone for disposing of accumulated dirt separated from the airflow by the container and the cyclone.

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