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US 9,301,661 B2Granted
Floor cleaning tool having a mechanically operated pump
AssigneeKärcher North America, Inc.
InventorsDaniel C. Venard, Adam Bearup
Life of this patent
Estimating the term…
Abstract
A compact machine for cleaning floors includes a solution tank and dispensing system for dispensing solution onto the surface to be cleaned, a deck assembly for guiding dirty solution to a recovery pickup point, a mechanically operated pump for collecting the dirty solution from the recovery pickup point, and a recovery tank for receiving the collected fluid.
Claims4
A portable, human-powered floor cleaning device comprising:
- a chassis comprising a clean fluid storage tank and a spent fluid collection tank;
- a plurality of wheels for supporting and moving the device;
- a deck assembly comprising a fluid pick-up orifice and a squeegee;
- a mechanically-driven pump housed within the chassis having an inlet and an outlet, the pump operably interconnected to a single drive wheel;
- the drive wheel provided substantially proximal to a midpoint of the chassis and comprising an eccentric wheel hub interconnected to a drive shaft extending in a vertical direction such that a rotational movement of the drive wheel results in a reciprocating movement of the shaft and actuation of the pump;
- the fluid pick-up orifice being interconnected to the pump by a conduit for transmitting fluid from the fluid pick-up orifice to the pump;
- wherein the device comprises a plurality of valves for substantially preventing flow of a fluid, and wherein at least one valve is provided on an upstream side of said pump and at least one valve is provided proximal to and downstream of said pump;
- and
- wherein the device is devoid of a power generation unit, such that translation of the device and actuation of the pump are enabled by a user imparting force to the device.
6 more elements
Dependencies are inferred from the claim text.