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VACUUM CLEANER

  • US 3,775,951 A
  • Filed: 10/20/1971
  • Issued: 12/04/1973
  • Est. Priority Date: 10/20/1971
  • Status: Expired due to Term
First Claim
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1. A vacuum cleaner assembly, comprising;

  • a tank, an inlet in said housing, a removable cover on said tank, an impeller supported by said removable cover having an inlet facing downwardly into tank, a motor driving said impeller and having a housing projecting above said removable cover, said housing having vents therein, a cover plate spaced above said vents and carried by the motor housing, a seal surrounding the inlet to the impeller, a supporting ring concentric with and surrounding said seal, a removable filter cartridge held by said supporting ring including an upper resilient ring snugly fitting over said supporting ring, an annular array of pleated filter material extending downwardly from said upper resilient ring, a bottom plate extending horizontally across the bottom of the filter material defining an enclosure therein, a ball valve within said enclosure, said cartridge being constructed to serve as the only guide for said ball valve, an exhaust manifold surrounding said impeller and being defined in part by said cover, and an outlet projecting upwardly and communicating with the interior of the manifold, said manifold being tapered from the impeller to the outlet.

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