Fabric cleaner with ozone injection
AssigneeU.S. Products, Inc.
InventorsRussell Gurstein, Edgar York
Life of this patent
Estimating the term…
Abstract
A fabric cleaning apparatus and method uses ozone-bearing cleaning liquid which is spread over the fabric and then vacuumed up. The spreading and the vacuuming are both performed through a cleaning head or tool which has hoses to a vacuum cleaner and cleaning liquid tank. The cleaning liquid is ozonized by injecting air from a conventional ozone generator into the cleaning liquid tank or into the delivery hose. An air pump and/or a venturi in the cleaning liquid line are used for the air injection. The ozone in the air stream dissolves into the cleaning liquid, which both helps to clean the fabric and avoids excessive ozone concentrations in the air. The elements may be housed in a single movable unit.
Claims16
In a fabric cleaning device of the type having a cleaning head tool movable over a fabric surface;
- a tank for holding cleaning liquid;
- a liquid conduit communicating the tank with the cleaning head tool for delivering the cleaning liquid to the cleaning head tool, the liquid conduit including a flexible liquid hose;
- a vacuum source;
- and a flexible vacuum hose communicating the vacuum source with the cleaning head tool for sucking up dirt and the cleaning liquid;
- the improvement comprising:
- an ozone generator for creating ozone in an air stream;
- and
- means for injecting the air stream into the cleaning liquid within the liquid conduit, whereby ozone in the air stream is mixed into the cleaning liquid.
In a fabric cleaning unit of the type having means for moving the unit over a fabric surface, a cleaning head tool, means for delivering cleaning liquid to the cleaning head tool, a vacuum source communicating with the cleaning head tool for sucking up dirt and the cleaning liquid, and tanks for holding selectively cleaning liquid and sucked-up liquid;
- the improvement comprising:
- means for injecting an ozonated air stream into the cleaning liquid, whereby ozone in the air stream is mixed into the cleaning liquid.
Dependencies are inferred from the claim text.