Granted Patent B2

US 12,239,267 · App. 16/916,935 · Granted Mar 4, 2025

Inventor: Mark Jeffery Giarritta (Foresthill, CA)

A47L11/302A47L11/325A47L11/34A47L11/4016A47L11/4069A47L11/4083A47L11/4088

Abstract

Claims (19)

1. A four-direction carpet shampooer comprising:

a single first brush roll configured to rotate on a first axis, the first brush roll being parallel with a front edge of a shampooer head and perpendicular to a forward and backward direction of travel of the shampooer, the first brush roll extending a substantial length across the shampooer head;

a plurality of second brush rolls configured to rotate on parallel second axes, the plurality of second brush rolls including three or more brush rolls, the parallel second axes being transverse to the first axis and parallel with the forward and backward direction of travel of the shampooer, the plurality of second brush rolls extending the substantial length across the shampooer head, each of the plurality of second brush rolls having bristles attached directly thereto around an entire circumference of each brush roll, wherein two adjacent sides of carpet fibers being in contact with the single first brush roll and the plurality of second brush rolls across the substantial length of the shampooer head during a single pass of the shampooer in the forward direction of travel, wherein two opposite adjacent sides of the carpet fibers being in contact with the single first brush roll and the plurality of second brush rolls across the substantial length of the shampooer head during a single pass of the shampooer in the backward direction of travel;

a direction of travel sensor to detect the shampooer direction of travel; and

a rotation changing actuator configured to reverse the rotation of the first brush roll on the first axis and to reverse the rotation of the plurality of second brush rolls on the parallel second axes when the direction of travel sensor indicates the forward or backward direction of travel of the shampooer has changed, the four-direction carpet shampooer thereby configured to clean two adjacent sides of carpet fibers when traveling forward and to clean the remaining two opposite sides of the carpet fibers when traveling backwards, thereby cleaning all four sides of the carpet fibers with one forward and one backward pass over the carpet fibers.

2. The four-direction carpet shampooer of claim 1 wherein the first roll and the plurality of second brush rolls are brush arrays.

3. The four-direction carpet shampooer of claim 1 wherein the first roll and the plurality of second brush rolls are propelled by one idler arm from one belt.

4. The four-direction carpet shampooer of claim 1 wherein the first roll and the plurality of second brush rolls are propelled using a device from the group consisting of: a transmission, a motor, an air diverter for suction, and an air blower.

5. The four-direction carpet shampooer of claim 1 being further configured with an idler arm and gear damper to protect gears and reduce gear noise.

6. The four-direction carpet shampooer of claim 5 being further configured with an extra spindle gear above the idler arm to facilitate belt installation without brush disassembly.

7. The four-direction carpet shampooer of claim 1 wherein the direction of travel sensor is a device of a type from the group consisting of: a mechanical device, an electrical device, a computerized device, and a motion sensor.

8. The four-direction carpet shampooer of claim 1 being further configured with a brush roll housing cleaning brush.

9. The four-direction carpet shampooer of claim 8 wherein the brush roll housing cleaning brush is a horseshoe or cavity-shaped brush having upward facing bristles.

10. The four-direction carpet shampooer of claim 8 wherein the brush roll housing cleaning brush is configured to automatically run while the shampooer is running.

11. The four-direction carpet shampooer of claim 8 wherein the brush roll housing cleaning brush is propelled by a worm drive gear or a suction port.

12. The four-direction carpet shampooer of claim 1 being further configured with the shampooer head and a soap bottle integrated in one component.

13. The four-direction carpet shampooer of claim 1 being further configured with dual soap tanks.

14. The four-direction carpet shampooer of claim 1 being further configured with a manifold attached to the shampooer head allowing installation of the shampooer head to be performed in one motion.

15. The four-direction carpet shampooer of claim 1 being further configured with a transmission/motor shell, wherein the transmission/motor shell is configured as a separate removable component from the shampooer head.

Continuity (2)

References Cited (400)