Surface cleaning machine with multiple control positions

Details Surface cleaning machine with multiple control positions Surface cleaning machine with multiple control positions

1999-05-26

2001-03-20

Chin, Randall E. (Department: 1744)

Brushing, scrubbing, and general cleaning

Machines

Brushing

C015S339000, C015S340100, C015S410000

Reexamination Certificate

active

06202243

ABSTRACT:

THE FIELD OF THE INVENTION
The present invention relates to surface cleaning machines, for example a vacuum sweeper for outdoor use which has counter rotating brushes to sweep debris into a central area from which a vacuum head picks up the debris and deposits it in a hopper. The invention should not be limited to this specific machine, but the invention will be described in connection with a surface cleaning apparatus of this type.
The vacuum sweeper, which is to be described, is capable of picking up litter in such places as city centers, malls, sidewalks and the like and customarily, this type of operation will take place with the operator walking behind the machine. The machine also may be driven with the operator seated upon it which will enable the machine to move at an accelerated speed from one area to another. In particular, the invention provides a surface cleaning machine, whether it be sweeper or scrubber, in which the operator may drive and control the machine from one of two independent and distinct positions. The machine may be driven with the operator seated upon its chassis or the machine may be driven with the operator walking behind it. The steering and speed control mechanism is pivotally movable on the chassis from a position in which it is mounted for seated control by the operator or movable to a second position in which it is mounted for control by the operator from behind the machine.
SUMMARY OF THE INVENTION
The present invention relates to surface cleaning machines and particularly to such a machine which may be manipulated from one of two control positions.
A primary purpose of the invention is to provide a simply constructed reliably operable surface cleaning machine in which the operator may drive the machine from a sitting position, or from a walk-behind position.
Another purpose of the invention is to provide a sweeping machine of the type described which includes a steering and speed control mechanism which is pivotally movable on the chassis from a first position in which the mechanism is used by a sitting operator and a second position in which the mechanism is used by an operator standing behind the machine.
Another purpose is a surface cleaning machine, for example, a vacuumized sweeper, in which the steering and speed control mechanism is pivotally mounted on the machine chassis and may be connected, by the operator, to a first mount on the forward part of the machine, or to a second mount on a rear portion of the machine, thereby providing multi-position control of the machine by an operator.
Other purposes will appear in the ensuing specification, drawings and claims.


REFERENCES:
patent: 3198030 (1965-08-01), Miller et al.
patent: 3720423 (1973-03-01), Morris
patent: 3833961 (1974-09-01), Fortman et al.
patent: 4624026 (1986-11-01), Olson et al.
patent: 4819676 (1989-04-01), Blehert et al.
patent: 5276933 (1994-01-01), Hennessey et al.
patent: 5346028 (1994-09-01), Cassano
patent: 5813679 (1998-09-01), Hobrath
patent: 5845724 (1998-12-01), Barrett

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