Mobile surface scrubber solution recovery system
First Claim
1. A mobile surface scrubber for scrubbing a surface wetted with cleaning solution, said scrubber comprising:
- a frame having a front, a back, left and right sides as viewed looking forward from the back of the frame, and a central longitudinal axis extending in a front-to-back direction relative to the frame;
a plurality of wheels rotatably mounted on the frame for transporting said scrubber over the surface in a plurality of directions including forward, left turning, and right turning directions;
scrub brush means attached to said frame and positioned to scrub the wetted surface as said scrubber is transported over the surface; and
a recovery system for recovering cleaning solution from the surface, said recovery system including a return tank for retaining recovered cleaning solution, an elongate rear squeegee pivotally connected to said frame, and left and right elongate side squeegees mounted on said frame adjacent the left and right sides of the frame, respectively, said rear squeegee having opposite left and right ends, each of said side squeegees having forward and rearward ends, said rear squeegee being positionable to contact said surface behind said scrub brush means when said scrubber is transported in the forward direction, said side squeegees being unvaryingly oriented with respect to the frame and positionable to contact said surface on opposite sides of said scrub brush means when said scrubber is transported in the forward direction, said rear squeegee being so constructed and operable that when said scrubber is transported in a right turning direction the rear squeegee pivots relative to the frame to a position in which the right end of the rear squeegee overlaps the rearward end of the right side squeegee, and when said scrubber is transported in a left turning direction the rear squeegee pivots relative to the frame to a position in which the left end of the rear squeegee overlaps the rearward end of the left side squeegee.
3 Assignments
0 Petitions
Accused Products
Abstract
A mobile surface scrubber for scrubbing a surface wetted with cleaning solution. The scrubber comprises a frame, a plurality of wheels rotatably mounted on the frame, scrub brush means attached to the frame and positioned to scrub the wetted surface as the scrubber is transported over the surface, and a recovery system for recovering cleaning solution from the surface. The recovery system includes a return tank for retaining recovered cleaning solution, a rear squeegee pivotally connected to the frame, and left and right side squeegees mounted on the frame. The rear squeegee is positionable to contact the surface behind the scrub brush means when the scrubber is transported in the forward direction. The side squeegees are unvaryingly oriented with respect to the frame and positionable to contact the surface on opposite sides of the scrub brush means. The rear squeegee is so constructed and operable that when the scrubber is transported in a right turning direction, the rear squeegee pivots relative to the frame to a position in which the right end of the rear squeegee overlaps the rearward end of the right side squeegee, and when the scrubber is transported in a left turning direction, the rear squeegee pivots relative to the frame to a position in which the left end of the rear squeegee overlaps the rearward end of the left side squeegee.
56 Citations
20 Claims
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1. A mobile surface scrubber for scrubbing a surface wetted with cleaning solution, said scrubber comprising:
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a frame having a front, a back, left and right sides as viewed looking forward from the back of the frame, and a central longitudinal axis extending in a front-to-back direction relative to the frame; a plurality of wheels rotatably mounted on the frame for transporting said scrubber over the surface in a plurality of directions including forward, left turning, and right turning directions; scrub brush means attached to said frame and positioned to scrub the wetted surface as said scrubber is transported over the surface; and a recovery system for recovering cleaning solution from the surface, said recovery system including a return tank for retaining recovered cleaning solution, an elongate rear squeegee pivotally connected to said frame, and left and right elongate side squeegees mounted on said frame adjacent the left and right sides of the frame, respectively, said rear squeegee having opposite left and right ends, each of said side squeegees having forward and rearward ends, said rear squeegee being positionable to contact said surface behind said scrub brush means when said scrubber is transported in the forward direction, said side squeegees being unvaryingly oriented with respect to the frame and positionable to contact said surface on opposite sides of said scrub brush means when said scrubber is transported in the forward direction, said rear squeegee being so constructed and operable that when said scrubber is transported in a right turning direction the rear squeegee pivots relative to the frame to a position in which the right end of the rear squeegee overlaps the rearward end of the right side squeegee, and when said scrubber is transported in a left turning direction the rear squeegee pivots relative to the frame to a position in which the left end of the rear squeegee overlaps the rearward end of the left side squeegee. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A mobile surface scrubber for scrubbing a surface wetted with cleaning solution, said scrubber comprising:
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a frame having a front, a back, left and right sides as viewed looking forward from the back of the frame, and a central longitudinal axis extending in a front-to-back direction relative to the frame; a plurality of wheels rotatably mounted on said frame for transporting said scrubber over the surface in a plurality of directions including forward, left turning, and right turning directions; scrub brush means attached to said frame and positioned to scrub the wetted surface as said scrubber is transported over the surface; and left and right side squeegees mounted on said frame adjacent the left and right sides of the frame, respectively, said squeegees being unvaryingly oriented with respect to said frame and having rearward portions outboard of said scrub brush means and forward portions extending laterally inwardly and forwardly to positions in front of said scrub brush means. - View Dependent Claims (16, 17, 18)
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19. A mobile surface scrubber for scrubbing a surface wetted with cleaning solution, said scrubber comprising:
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a frame having a front, a back, left and right sides as viewed looking forward from the back of the frame, and a central longitudinal axis extending in a front-to-back direction relative to the frame; a plurality of wheels rotatably mounted on the frame for transporting said scrubber over the surface in a plurality of directions including forward, left turning, and right turning directions; scrub brush means attached to said frame and positioned to scrub the wetted surface as said scrubber is transported over the surface; and a recovery system for recovering cleaning solution from the surface, said recovery system including a return tank for retaining recovered cleaning solution, an elongate rear squeegee pivotally connected to said frame, and left and right elongate side squeegees mounted on said frame adjacent the left and right sides of the frame, respectively, said rear squeegee having opposite left and right ends, each of said side squeegees having forward and rearward ends, said rear squeegee being positionable to contact said surface behind said scrub brush means when said scrubber is transported in the forward direction, said side squeegees being unvaryingly oriented with respect to the frame and positionable to contact said surface on opposite sides of said scrub brush means when said scrubber is transported in the forward direction, said rear squeegee being so constructed and operable that when said scrubber is transported in a right turning direction the rear squeegee pivots relative to the frame to a position in which the rear and right side squeegees form an uninterrupted continuous barrier extending from the left end of the rear squeegee to the forward end of the right side squeegee for collecting cleaning solution, and when said scrubber is transported in a left turning direction the rear squeegee pivots relative to the frame to a position in which the rear and left side squeegees form an uninterrupted continuous barrier extending from the right end of the rear squeegee to the forward end of the left side squeegee for collecting cleaning solution. - View Dependent Claims (20)
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Specification