Stacked tools for overthrow sweeping
First Claim
1. A surface cleaning machine including a frame, wheels for supporting the frame, a debris hopper on a forward part of the frame,a cylindrical sweeping brush mounted on the frame for rotation about an axis that is transverse to machine movement when cleaning a surface, a drive for said sweeping brush, said sweeping brush being mounted behind the debris hopper on the frame and rotating in a direction to throw debris from a surface being swept forwardly toward the debris hopper, a cylindrical conveying brush mounted on the frame for rotation about an axis that is parallel to the sweeping brush, said sweeping brush drive driving said conveying brush in the same rotary direction as said sweeping brush, said conveying brush being positioned above said sweeping brush and being located relative thereto to convey debris moved upwardly by the sweeping brush in an upward and forward direction toward the debris hopper, and a scroll mounted on the frame forwardly of the sweeping brush and conveying brush and between said brushes and said debris hopper to direct the flow of debris from said brushes to said debris hopper, both of said sweeping brush and conveying brush being movably mounted on said frame for movement toward said scroll to accommodate wear of the brushes.
4 Assignments
0 Petitions
Accused Products
Abstract
A surface cleaning machine includes a frame, wheels for supporting the frame and a debris hopper positioned on the forward part of the frame. There is a cylindrical sweeping brush mounted on the frame for rotation about an axis transverse to machine movement. There is a drive on the frame for the sweeping brush with the sweeping brush being mounted behind the debris hopper and rotating in a direction to throw debris from a surface being cleaned forwardly toward the debris hopper. A cylindrical conveying brush, parallel to the sweeping brush, is mounted on the frame for rotation in the same direction as the sweeping brush. The same drive rotates both brushes. The conveying brush is positioned above the sweeping brush and located relative thereto to convey debris moved upwardly by the sweeping brush in an upward and forward direction toward the debris hopper. A scroll is mounted on the frame forward of both brushes and between the brushes and the debris hopper to direct the flow of debris from the brushes to the debris hopper.
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Citations
27 Claims
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1. A surface cleaning machine including a frame, wheels for supporting the frame, a debris hopper on a forward part of the frame,
a cylindrical sweeping brush mounted on the frame for rotation about an axis that is transverse to machine movement when cleaning a surface, a drive for said sweeping brush, said sweeping brush being mounted behind the debris hopper on the frame and rotating in a direction to throw debris from a surface being swept forwardly toward the debris hopper, a cylindrical conveying brush mounted on the frame for rotation about an axis that is parallel to the sweeping brush, said sweeping brush drive driving said conveying brush in the same rotary direction as said sweeping brush, said conveying brush being positioned above said sweeping brush and being located relative thereto to convey debris moved upwardly by the sweeping brush in an upward and forward direction toward the debris hopper, and a scroll mounted on the frame forwardly of the sweeping brush and conveying brush and between said brushes and said debris hopper to direct the flow of debris from said brushes to said debris hopper, both of said sweeping brush and conveying brush being movably mounted on said frame for movement toward said scroll to accommodate wear of the brushes.
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13. A surface cleaning machine comprising;
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a mobile frame;
a debris hopper carried upon the surface by the frame;
a cylindrical sweeping brush carried by the frame, said sweeping brush rotating in a direction to throw debris from a surface being swept toward the debris hopper;
a cylindrical conveying brush carried by the frame for rotation about an axis that is parallel to the sweeping brush, said conveying brush being positioned above said sweeping brush and being located relative thereto to convey debris moved upwardly by the sweeping brush in an upward direction toward the debris hopper; and
a scroll carried by the frame forwardly of the sweeping brush and conveying brush, said scroll to direct the flow of debris from said brushes to said debris hopper, both of said sweeping brush and said conveying brush being selectively movable toward said scroll to accommodate wear of the brushes. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A surface cleaning machine comprising:
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a mobile frame;
a debris hopper carried by the frame;
a cylindrical sweeping brush carried on the fame, said sweeping brush rotating in a direction to throw debris from a surface being swept toward the debris hopper;
a cylindrical conveying brush carried on the frame for rotation about an axis that is parallel to the sweeping brush, said conveying brush being positioned above said sweeping brush and being located relative thereto to convey debris moved upwardly by the sweeping brush in an upward direction toward the debris hopper;
a scroll carried on the frame forwardly of the sweeping brush and conveying brush, said scroll to direct the flow of debris from said brushes to said debris hopper, said sweeping brush being mounted on the frame for movement toward said scroll to accommodate wear of the sweeping brush; and
a rear wall carried on said-frame behind both said sweeping brush and said conveying brush, said rear wall including a re-circulation flap positioned at the lower end of said rear wall and generally adjacent a rear surface of said sweeping brush, which rear wall, together with said scroll, forms a sweeping compartment. - View Dependent Claims (24, 25, 26, 27)
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Specification