Brushing – scrubbing – and general cleaning – Machines – Brushing
Reexamination Certificate
2005-04-21
2009-08-04
Spisich, Mark (Department: 3727)
Brushing, scrubbing, and general cleaning
Machines
Brushing
C015S050100, C015S098000, C015S320000, C451S353000
Reexamination Certificate
active
07568254
ABSTRACT:
The disclosure relates to the floor scrubbing or finishing machines. There is provided a machine for scrubbing or finishing a floor surface comprising carriage means adapted for translational movement over a floor surface, a workhead, an electric motor carried by the carriage means and arranged in use to drive the workhead and battery support means adapted in use to support at least one battery as a source of electric power for driving the electric motor, wherein said battery support means are adapted to support said at least one battery so that said at least one battery can be positioned in a selected one of a range of positions relative to said workhead whereby the loading on said workhead can be varied as required.
REFERENCES:
patent: 3277511 (1966-10-01), Little et al.
patent: 6357070 (2002-03-01), Venard et al.
patent: 6450867 (2002-09-01), Legatt
patent: 2001/0032372 (2001-10-01), Tremmel et al.
patent: 2 274 977 (1994-08-01), None
patent: 6153320 (1994-05-01), None
patent: 9-66013 (1997-03-01), None
patent: 9-94201 (1997-04-01), None
Duncan Christopher R.
Findlay John
Ballard Spahr Andrews & Ingersoll LLP
Numatic International Limited
Spisich Mark
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