Counter-rotational electric scrubber

• US 20050120506A1
• Filed: 12/03/2003
• Published: 06/09/2005
• Est. Priority Date: 12/03/2003
• Status: Abandoned Application

• Current Assignee: Chiaphua Industries Limited
• Original Assignee: Chiaphua Industries Limited
• Inventors: Shek, Kwok Nam, Cheah, Aik Pin
• Application Number:
  US10/725,998
• Publication Number:
  US 20050120506A1
• Time in Patent Office: Days
• US Class Current: 15/320
• CPC Class Codes: A46B 13/001 Cylindrical or annular brush bodies
• CPC Class Codes: A47K 11/10 Hand tools for cleaning the toilet bowl , seat or cover, e.g. toilet brushes cleaning devices without flushing A47K17/00; mechanical devices for cleaning toilet bowls E03D
• CPC Class Codes: B08B 1/32 using rotary cleaning members

Abstract

An electric scrubber includes a housing, an electric motor mounted within a housing, a pair of scrubbing blocks mounted to the housing for rotation about a common axis, and a torque transmission transmitting torque from the electric motor to the scrubbing blocks in such manner that the scrubbing blocks rotate simultaneously in mutually opposite directions about the common axis.

Claims

1. An electric scrubber, comprising:

a housing,

an electric motor mounted within a housing,

a pair of scrubbing blocks mounted to the housing for rotation about a common axis, and

a torque transmission transmitting torque from the electric motor to the scrubbing blocks in such manner that the scrubbing blocks rotate simultaneously in mutually opposite directions about the common axis.

2. The electric scrubber of claim 1 wherein one of the scrubbing blocks has a circular array of inwardly directed teeth and the other of the scrubbing blocks has a circular array of outwardly facing teeth and wherein the torque transmission comprises a pinion meshing with both of said circular arrays of teeth.

3. The electric scrubber of claim 2 wherein the torque transmission further includes a worm gear in mesh with an intermediate gear with which the pinion shares a common shaft.

4. The electric scrubber of claim 2 wherein both circular arrays of teeth are mounted in a common plane.

5. The electric scrubber of claim 1 wherein each scrubbing block comprises surface-interactive elements mounted upon a common plane.

6. The electric scrubber of claim 1 wherein each scrubbing block comprises surface-interactive elements radiating from a common axis.

7. The electric scrubber of claim 1 further comprising a dispenser within the housing for delivering a liquid agent to at least one of the scrubbing blocks.

8. The electric scrubber of claim 1 comprising a handle detachable from the housing and encasing a rechargeable battery in circuit with the electric motor via terminals exposed upon detachment of the handle from the housing.

9. The electric cover of claim 8 wherein the handle comprises an elongate extension on which the terminals are located and wherein the housing comprises an elongate recess into which the extension is received.

10. The electric scrubber of claim 9, in combination with a recharging stand attachable to a source of main power and comprising an elongate recess into which the extension is received.