Device for scrubbing surfaces
AssigneeMilliken Research Corporation
InventorLarry S. Satterfield
Life of this patent
Estimating the term…
Abstract
A device for scrubbing surfaces having pairs of freely rotatable brushes each mounted on a shaft having an offset tip portion. Each shaft is mounted on a rotating support plate and half of the shafts rotate clockwise and the other half rotate counter-clockwise. In the preferred embodiment, the scrubbers have slanted bristles which bias the rotation of each scrubber in the direction of rotation of the shaft it is mounted upon. The preferred embodiment is particularly well suited for use in cleaning carpets using the powdered cleaning composition described in U.S. Pat. No. 4,013,594.
Claims14
A device for scrubbing surfaces, comprising:
- a frame;
- a rotating support plate rotatably mounted on said frame;
- at least two shafts rotatably mounted on said rotating support plate;
- a scrubber means rotatably mounted on each shaft, each scrubber means being rotatable about an axis which is substantially parallel to but offset from the axis of rotation of said shaft;
- means for rotating said rotating support plate;
- and
- means for rotating each of said shafts;
- wherein the number of said shafts rotatably mounted on said rotating support plate is even and wherein half of said shafts rotate clockwise and the other half rotate counter-clockwise.
A device for scrubbing surfaces, comprising:
- a frame;
- a rotating support member rotatably mounted on said frame;
- a first pair of offset shafts rotatably mounted on said rotating support member;
- a second pair of offset shafts rotatably mounted on said rotating support member;
- a scrubber means rotatably mounted on each offset shaft, each scrubber means being rotatable about an axis which is substantially parallel to but offset from the axis of rotation of said offset shaft;
- means for rotating each of said first pair of offset shafts;
- means for rotating each of said second pair of offset shafts in a direction which is opposite to the direction of rotation of said first pair of offset shafts;
- and
- means for rotating said rotating support member.
A device for scrubbing surfaces comprising:
- a frame;
- a rotating support member rotatably mounted on said frame;
- at least one pair of shafts rotatably mounted on said rotating support member;
- a scrubber means rotatably mounted on each shaft, each scrubber means being rotatable about an axis which is substantially parallel to but offset from the axis of rotation of said shaft;
- means for rotating said rotating support member;
- means for rotating each of said shafts so that half of said shafts rotate clockwise and the other half rotate counterclockwise;
- and
- means for biasing the rotation of each of said scrubber means so that upon operation half of said scrubber means rotate clockwise and the other half rotate counterclockwise.
Dependencies are inferred from the claim text.