Filter cleaning system for floor cleaning apparatus
OwnerKerry L. Dever, Jeffrey M. Elrodinventors
Life of this patent
Estimating the term…
Abstract
A floor cleaning apparatus includes a housing. A dirt collection vessel with filter and a suction generator are carried on the housing. The floor cleaning apparatus also includes a four port/two position directional control valve and a valve actuator. The valve actuator selectively displaces the directional control valve between a first position wherein dirt and debris is captured in the dirt collection vessel by the filter and a second position wherein clean air purges dirt and debris from the filter into the dirt collection vessel.
Claims21
A floor cleaning apparatus, comprising:
- a housing;
- a dirt collection vessel with filter carried on said housing;
- a suction generator carried on said housing;
- a four port/two position directional control valve;
- and
- a valve actuator for selectively displacing said directional control valve between a first position wherein dirt and debris is captured in said dirt collection vessel by said filter and a second position wherein clean air purges dirt and debris from said filter into said dirt collection vessel.
A floor cleaning apparatus, comprising:
- a housing;
- a dirt collection vessel carried on said housing;
- a filter carried on said housing;
- a suction generator carried on said housing;
- at least one wheel connected to said housing and supporting said housing on a floor;
- a directional control valve carried on said housing;
- and
- a valve actuator for selectively displacing said directional control valve between a first position wherein dirt and debris is collected in said dirt collection vessel and on said filter and a second position wherein clean air purges dirt and debris from said filter into said dirt collection vessel, said valve actuator being connected to said at least one wheel.
A method of cleaning a filter in situ in a vacuum cleaner supported on a ground engaging wheel, comprising;
- providing a valve for periodically reversing air flow through said filter;
- providing an actuator for said valve;
- and
- connecting said actuator to said wheel whereby said filter is cleaned after said vacuum cleaner rolls a predetermined distance over the ground.
Dependencies are inferred from the claim text.