# US 10,307,880 B1 · Floor grinder and polisher > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,307,880 B1 - Document ID: US10307880B1 - Status: Granted - Kind: B1 - Application number: 15/663,087 - Filed: 2017-07-28 - Granted: 2019-06-04 - Earliest claimed: 2016-11-02 - Assignees: Polyrock LLC - Applicants: Polyrock LLC - Inventors: Bradley Richards - Web page: https://patentgrep.com/patent/US10307880B1 ## CPC - B24B 7/186: {with disc-type tools} - A47L 11/14: with rotating tools - A47L 11/4011: {Regulation of the cleaning machine by electric means; Control systems and remote control systems therefor} - B24B 41/02: Frames; Beds; Carriages - B24B 51/00: Arrangements for automatic control of a series of individual steps in grinding a workpiece (if applicable to other machine tools, G05B takes precedence) - B24B: MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING (grinding of gear teeth B23F, of screw-threads B23G1/36; by electro-erosion B23H; abrasive or related blasting B24C; tools for grinding, buffing or sharpening B24D; polishing compositions C09G1/00; abrasives C09K3/14; electrolytic etching or polishing C25F3/00; grinding arrangements for use on assembled railway tracks E01B31/17); DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS - A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08) ## Abstract An apparatus for treating a floor surface includes a floor grinder-polisher system including a support frame and a plurality of grinding heads mounted on the support frame, a power source connected to the plurality of grinding heads and configured to supply power to the plurality of grinding heads, a controller configured to control the plurality of grinding heads, and a vehicle connected to the support frame and configured to support the power source. Each grinding head includes a grinding surface configured to rotate and engage a floor surface. ## Claims ### Claim 1 An apparatus for treating a floor surface, the apparatus comprising: a floor grinder-polisher system comprising a support frame and a plurality of grinding heads mounted on the support frame, wherein each grinding head in the plurality of grinding heads comprises a grinding surface configured to rotate and engage a floor surface and wherein the support frame is adjustable in length between a first lateral side and a second, opposite lateral side of the support frame; a power source connected to the plurality of grinding heads and configured to supply power to the plurality of grinding heads; a controller configured to control the plurality of grinding heads; and a vehicle connected to the support frame and configured to support the power source. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the controller is configured to independently control a rotational speed of each grinding surface of the plurality of grinding heads. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein each grinding head in the plurality of grinding heads comprises a motor configured to rotate a respective grinding surface of each grinding head. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein the motor is an electric motor. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the grinding surface of one grinding head in the plurality of grinding heads comprises about 24 diamond cutters. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein each grinding head of the plurality of grinding heads is independently mounted on the support frame. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein each grinding head is adjustable on the support frame. ### Claim 8 (depends on 1) The apparatus of claim 1, wherein each grinding head of the plurality of grinding heads is removably connected to the support frame. ### Claim 9 (depends on 1) The apparatus of claim 1, wherein the plurality of grinding heads comprises at least five grinding heads mounted on the support frame. ### Claim 10 (depends on 9) The apparatus of claim 9, wherein three or more grinding heads of the at least five grinding heads are disposed on the support frame in a staggered, zig-zag pattern. ### Claim 11 (depends on 1) The apparatus of claim 1, further comprising at least one weight tray disposed on at least one grinding head of the plurality of grinding heads, the at least one weight tray configured to provide an additional downforce on the at least one grinding head of the plurality of grinding heads. ### Claim 12 (depends on 1) The apparatus of claim 1, wherein the support frame is removably connected to the vehicle. ### Claim 13 (depends on 12) The apparatus of claim 12, wherein the support frame removably connects to the vehicle with a hitch pin system. ### Claim 14 (depends on 1) The apparatus of claim 1, wherein the support frame rotatably connects to the vehicle. ### Claim 15 (depends on 1) The apparatus of claim 1, wherein the support frame comprises extendible arms configured to adjust the length of the support frame. ### Claim 16 (depends on 1) The apparatus of claim 1, further comprising a water management system comprising a water tank and a water supply hose, the water management system configured to supply water to the floor grinder-polisher system for a wet-grinding operation. ### Claim 17 (depends on 16) The apparatus of claim 16, wherein the water supply hose is at least partially integral to the vehicle. ### Claim 18 (depends on 16) The apparatus of claim 16, wherein the water tank is disposed on a tow cart configured to be towed by the vehicle. ### Claim 19 (depends on 16) The apparatus of claim 16, wherein the controller is configured to control a flow rate of water supplied to the plurality of grinding heads from the water management system. ### Claim 20 (depends on 1) The apparatus of claim 1, wherein the controller is configured to control at least one of a speed of the plurality of grinding heads or a speed of the vehicle. ### Claim 21 (depends on 1) The apparatus of claim 1, wherein the controller is configured to provide speed and load readings of the plurality of grinding heads to an indicator on the vehicle. ### Claim 22 (depends on 1) The apparatus of claim 1, wherein each grinding head in the plurality of grinding heads comprises a 30 horsepower electric motor, and the power source comprises a 200 amp to 250 amp generator. ### Claim 23 A method for treating a floor surface, the method comprising: supporting, with a vehicle, a floor grinder polisher system and a power source, the floor grinder polisher system comprising a support frame and a plurality of grinding heads mounted on the support frame, wherein the support frame is adjustable in length between a first lateral side and a second, opposite lateral side of the support frame and each grinding head in the plurality of grinding heads comprising a grinding surface configured to rotate and engage a floor surface; supplying power, with the power source, to the plurality of grinding heads; engaging, with the plurality of grinding heads, a floor surface; and controlling, with a controller, a speed of the plurality of grinding heads. ### Claim 24 (depends on 23) The method of claim 23, wherein controlling a speed of the plurality of grinding heads comprises controlling, with the controller, a rotational speed of the grinding surfaces of the plurality of grinding heads. ### Claim 25 (depends on 23) The method of claim 23, wherein controlling a speed of the plurality of grinding heads comprises independently controlling, with the controller, each grinding head of the plurality of grinding heads. ### Claim 26 An apparatus for treating a floor surface, the apparatus comprising: a floor grinder-polisher system comprising a support frame and at least one grinding head removably connected to the support frame, wherein the support frame is adjustable in length between a first lateral side and a second, opposite lateral side of the support frame and wherein the at least one grinding head comprises a grinding surface configured to rotate and engage a floor surface; a power source connected to the floor grinder-polisher system and configured to supply power to the at least one grinding head; a controller configured to control the plurality of grinding heads; and a vehicle connected to the support frame and configured to support the power source. ### Claim 27 (depends on 26) The apparatus of claim 26, wherein the support frame is removably connected to the vehicle. ### Claim 28 (depends on 23) The method of claim 23, wherein the support frame comprises extendible arms configured to adjust the length of the support frame. ### Claim 29 (depends on 26) The apparatus of claim 26, wherein the support frame comprises extendible arms configured to adjust the length of the support frame.