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Beater-brush roller for vacuum cleaner

  • US 3,225,374 A
  • Filed: 08/26/1963
  • Issued: 12/28/1965
  • Est. Priority Date: 08/26/1963
  • Status: Expired due to Term
First Claim
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1. A BEATER-BRUSH ROLLER FOR USE IN THE MOUTH OF A VACUUM CLEANER, SAID ROLLER COMPRISING A UNITARY CYLINDRICAL MEMBER HAVING A PAIR OF SPACED-APART LONGITUDINALLY EXTENDING IDENTICAL UNDERCUT HELICAL SLOTS EACH HAVING OUTWARDLY CONVERGENT SIDEWALLS, SAID SLOTS BEING FORMED DIRECTLY IN SAID UNITARY CYLINDRICAL MEMBER AND EXTENDING FOR A MAJOR PORTION OF THE LENGTH THEREOF;

  • A BALANCING STRIP FREELY INSERTABLE ENDWISE INTO ONE OF SAID SLOTS AND HELD IN THE INNER PORTION OF SAID SLOT BY SAID OUTWARDLY CONVERGENT SIDEWALLS;

    A BEATER INSERT INSTALLED IN THE OTHER OF SAID SLOTS;

    AND A BRUSH INSERT INSTALLED IN THE SLOT WITH SAID BALANCING STRIP.

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