Leaf and debris sweeper

Brushing – scrubbing – and general cleaning – Machines – Brushing

Reexamination Certificate

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Details

C015S080000, C015S082000, C015S083000, C015S084000

Reexamination Certificate

active

07810202

ABSTRACT:
A debris collecting device includes a rotatable drum4having a plurality of radially extending tynes5and a rake adapted to cooperate with the drum, the rake having dual arcuate shaped blades, including a debris releasing blade7and a reversing blade9adapted to contiguously contact either side of the drum over the whole length thereof at the respective leading edges thereof. The blades include elongate slots11adapted to intersect and accommodate the travel path of the tynes as the drum rotates such that debris pierced and picked up by the tynes rotating in a first direction is dislodged for transfer to a catcher2.

REFERENCES:
patent: 3451488 (1969-06-01), Taketa
patent: 3649982 (1972-03-01), Mortensen
patent: 4217672 (1980-08-01), Olivari
patent: 4549326 (1985-10-01), Pineau
patent: 4939406 (1990-07-01), Jeschonneck et al.
patent: 5274989 (1994-01-01), Ng
patent: 5743076 (1998-04-01), Ng
patent: 7322177 (2008-01-01), Geraghty
patent: 2004/0045584 (2004-03-01), Mathews et al.
patent: 884600 (1980-01-01), None
patent: 2224766 (1990-05-01), None

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