Road/pavement cleaning machine having air-blast functionality

Details Road/pavement cleaning machine having air-blast functionality Road/pavement cleaning machine having air-blast functionality

2005-04-05

2009-11-24

Hail, III, Joseph J (Department: 3723)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S340300, C015S340400

Reexamination Certificate

active

07621018

ABSTRACT:
A road/pavement sweeper is provided with a pickup head or debris-intake hood that operates in a conventional manner to entrain or aspirate particles and/or debris from the pavement surface. The air-inlet structure of the debris-intake hood is provided with an air-flow control member that selectively directs the air flow through the debris-intake hood in order to conventionally entrain debris or particles from the surface being swept or through an opening in the side of the air-inlet structure to create an air blast useful to blow debris from the pavement or roadway surface. One or more fixed-position or controlled-position air flow vanes can be provided to selectively direct the air blast.

REFERENCES:
patent: 3491399 (1970-01-01), Burgoon et al.
patent: 4858270 (1989-08-01), Boschung
patent: 5107566 (1992-04-01), Schmid
patent: 5477585 (1995-12-01), Hentzschel et al.
patent: 5852847 (1998-12-01), Weiss et al.
patent: 5884359 (1999-03-01), Libhart
patent: 6000095 (1999-12-01), Johnson
patent: 6371565 (2002-04-01), Libhart

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