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Surface cleaning device with triggerless fluid distribution mechanism

  • US 10,813,519 B2
  • Filed: 07/25/2019
  • Issued: 10/27/2020
  • Est. Priority Date: 12/18/2017
  • Status: Active Grant
First Claim
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1. An extractor comprising:

  • a base movable along a surface to be cleaned, the base comprising at least one wheel;

    an upright portion pivotally coupled to a portion of the base, wherein the upright portion includes a supply tank and a handle configured to be gripped by a user to move the base along the surface to be cleaned;

    a liquid distribution system including the supply tank and a distributor in fluid communication configured to deliver solution to the surface in a distributing mode and to not deliver the solution to the surface in a non-distributing mode;

    an encoder operable to generate an encoder signal as a first signal based on user-initiated movement of the base along the surface in a forward direction and as a second signal based on user-initiated movement of the base along the surface in a rearward direction; and

    a controller operatively connected to the encoder and the liquid distribution system, the controller being configured to operate the liquid distribution system in the distributing mode during movement of the base based on the first signal during operation of the extractor and in the non-distributing mode during movement of the base based on the second signal during operation of the extractor, wherein the controller changes from the distributing mode to the non-distributing mode based on the encoder signal and independent of user interaction with the extractor other than the user-initiated movement,wherein the first signal is based on a forward rotation of the at least one wheel, and wherein the second signal is based on a reverse rotation of the at least one wheel.

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