Robotic vacuum cleaning system

  • US 8,910,342 B2
  • Filed: 06/12/2014
  • Issued: 12/16/2014
  • Est. Priority Date: 04/29/2011
  • Status: Active Grant
First Claim
Patent Images

1. A robot cleaning system comprising:

  • a debris collection volume;

    a vacuum airway configured to deliver debris to the debris collection volume; and

    a cleaning head in pneumatic communication with the vacuum airway, the cleaning head comprising;

    two resilient shape-changing tubes separated by an air gap opposing the vacuum airway; and

    a form-following housing surrounding an outer circumferential periphery of each of the shape-changing tubes, the housing spaced from a radially outermost part of each of the shape-changing tubes by less than or equal to about 1 mm;

    wherein the cleaning head is operable in;

    a first configuration wherein the two shape-changing tubes rotate against a cleaning surface to agitate debris to pass through the air gap and into the vacuum airway; and

    a second configuration wherein both shape-changing tubes deform opposite one another to roll an object larger than the air gap to pass into the vacuum airway.

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