Brushing – scrubbing – and general cleaning – Machines – Brushing
Reexamination Certificate
2005-05-03
2010-10-12
Karls, Shay L (Department: 3723)
Brushing, scrubbing, and general cleaning
Machines
Brushing
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:
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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
FPR Solutions Pty. Ltd.
Goldberg Richard M.
Karls Shay L
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