Floor and carpet push brush

Details Floor and carpet push brush Floor and carpet push brush

2006-11-07

2006-11-07

Spisich, Mark (Department: 1744)

Brushing, scrubbing, and general cleaning

Implements

Combined

C015S159100, C015S041100, C015S047000, C015S049100, C015S052100

Reexamination Certificate

active

07131162

ABSTRACT:
In a wheel supported floor and carpet push brush of the type having an array of aggressive bristles and another array of bristles which are of lesser diameter than the aggressive bristles carried on the dowel so that the brush can be turned over to bring a selected one of the arrays into operative sweeping position, the improvement wherein the average diameter of the aggressive bristles is no greater than about 0.012 inches with a preferred diameter being about 0.010 inches, and the other array of bristles have an average maximum diameter less than 0.010 inches with a preferred diameter being about 0.008 inches.

REFERENCES:
patent: 1564526 (1925-12-01), Callais
patent: 2043758 (1936-06-01), Lay
patent: 4422202 (1983-12-01), Malvasio
patent: 4831678 (1989-05-01), Dietsche
patent: 5537707 (1996-07-01), Middleton
patent: 5707454 (1998-01-01), Middleton
patent: 6311354 (2001-11-01), Whittaker et al.
patent: 6321405 (2001-11-01), Whittaker et al.

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