Cylindrical robotic vacuum

• US 9,521,934 B1
• Filed: 10/02/2015
• Issued: 12/20/2016
• Est. Priority Date: 10/07/2014
• Status: Active Grant

• Current Assignee: Bobsweep, Inc.
• Original Assignee: Bobsweep, Inc.
• Inventors: Ebrahimi Afrouzi, Amin, Ebrahimi Afrouzi, Masih, Afshar Bakooshli, Azadeh, Ebrahimi Afrouzi, Ali, Mehrnia, Soroush
• Primary Examiner(s): REDDING, DAVID A
• Application Number:
  US14/874,308
• Time in Patent Office: 445 Days
• US Class Current: 1/1
• CPC Class Codes: A47L 2201/00 Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
• CPC Class Codes: A47L 2201/04 Automatic control of the travelling movement; Automatic obstacle detection
• CPC Class Codes: A47L 9/00 Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
• CPC Class Codes: A47L 9/009 Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles
• CPC Class Codes: A47L 9/2805 Parameters or conditions being sensed
• CPC Class Codes: A47L 9/2852 Elements for displacement of the vacuum cleaner or the accessories therefor, e.g. wheels, casters or nozzles

Abstract

A robotic vacuum wherein the housing of the system is cylindrical in form with two wheels of diameter larger than the diameter of the housing supporting the housing on either end. Larger wheels permit the device to more easily travel over small bumps or obstacles and changes in elevation. Furthermore, the design requires less power to drive the housing, so more energy is available for the primary function of vacuuming.

Claims

1. A robotic vacuum comprising:

a laterally-oriented cylindrical housing with one or more openings on the underside thereof to allow debris to enter the housing;

a set of wheels of diameter larger than the diameter of said cylindrical housing, each wheel provided at the distal ends of the cylindrical housing;

a set of motors to turn said wheels;

an axle to support said wheels;

bearings to connect said wheels to said axle; and

a means for vacuuming debris from a work surface within said housing.

2. The robotic vacuum of claim 1 further comprising:

one or more counterweights provided within the housing;

an electric servomotor to adjust the positioning of said one or more counterweights;

a gyroscope sensor to calculate the necessary positioning of said one or more counterweights to maintain an upright positioning of said housing.

3. The robotic vacuum of claim 1 wherein said housing may be turned in a left or right direction by adjusting the rotational speed of one wheel relative to that of the other wheel.

4. The robotic vacuum of claim 1 wherein said axle further supports any of:

a vacuuming motor, one or more batteries, and a dustbin for storage of collected debris.

5. A laterally-oriented cylindrical housing for a robotic vacuum with one or more openings on the underside thereof for allowing the entrance of debris into said housing comprising:

an axle provided through the center of said housing;

two wheels of diameter larger than the diameter of said housing provided at either end of said axle;

a set of bearings connecting said wheels to said axle; and

one or more motors to turn said wheels;

whereby said housing may be driven through a work space by the turning of said set of wheels.

6. The housing for a robotic vacuum of claim 5 further comprising:

one or more counterweights;

an electric servomotor for moving said one or more counterweights;

a gyroscope sensor to calculate counterweight movements necessary to maintain said housing in an upright position.

7. The housing for a robotic vacuum of claim 5 wherein said housing may be turned in a left or right direction by adjusting the rotational speed of one wheel relative to that of the other wheel.

8. The housing for a robotic vacuum of claim 5 wherein said axle further supports any of:

a vacuuming motor, one or more batteries, and a dustbin for storage of collected debris.