US 11,439,283 B2 · Self-cleaning system and method for extraction cleaners

Abstract

Systems and method for self-cleaning extraction cleaners, including upright or robot extraction cleaner are provided. In one system, a tray can be provided for docking the extraction cleaner during the self-cleaning mode. The tray may include one or more sprayers for spraying a cleaning fluid toward an agitator of the extraction cleaner. In another system, a nozzle flushing manifold mounted on the nozzle assembly of the extraction cleaner includes a plurality of distributor outlets configured to spray cleaning fluid into the suction pathway.

Claims17

Dependent claims

A cleaning tray for a surface cleaning apparatus having a base assembly with a suction nozzle and an agitator, the cleaning tray comprising:

a body forming a tray having a recessed portion configured to at least partially surround at least one of the suction nozzle or the agitator, the recessed portion having a receiver inset within a portion of the recessed portion;
and
an insert selectively received within the receiver and configured to engage the agitator and removable from the body the insert comprising a base configured to snap fit into the recessed portion and a plurality of rows of projections extending from the base, the plurality of rows of projections configured to contact the agitator.

Dependencies are inferred from the claim text.

Facts

Application

15/994,040Filed 31 May 2018 · us provisional application

Priority

2 Jun 2017

Published

US 2018/0344112 A16 Dec 2018

Granted

13 Sep 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

A47L 7/0052
Suction cleaners adapted for additional purposes ; Tables with suction openings for cleaning purposes; Containers for cleaning articles by…:…
A47L 7/0009
Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners: with means mounted on the nozzle; nozzles specially adapted for the…
A47L 9/0063
Storing devices ; Supports, stands or holders: external storing devices; Stands, casings or the like for the storage of suction cleaners
A47L 11/292
Floor-scrubbing machines characterised by means for taking-up dirty liquid: having rotary tools

Self-cleaning system and method for extraction cleaners

Life of this patent

Self-cleaning system and method for extraction cleaners

Life of this patent

Abstract

Claims17