Beater-brush roller for vacuum cleaner
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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1 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.
- 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;
Specification