Liquid extraction cleaning device

US9717386B2 · kind B2 · utility

Assignee

• RUG DOCTOR, LLC · US

Inventors

• Timothy J. Wall · Plano, US
• Ann Marie Morrow · Plano, US
• Walter Haug · Blaustein, DE
• Phuong Le · Holden, US
• Charles Michael Ostendorf · Clinton, US
• Schubert Pereira · Fenton, US
• Ernest Matthew Chavana, Jr. · Fenton, US
• Vincent Lau · Fenton, US
• Jason Edward Hill · University City, US
• Jason Tilk · Cleveland Heights, US
• Evan Spirk · Cleveland, US
• Lindsey Tufts, Jr. · Euclid, US
• Craig Saunders · Rocky River, US
• Paul D. Stephens · Twinsburg, US

Key dates

• Filing date: Feb 4, 2015
• Grant date: Aug 1, 2017
• Expiry date: Feb 4, 2036

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A47L11/4088
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

A liquid extraction cleaning device comprises a vacuum pump, a liquid pump, a cleaning solution tank, a recovery tank, first and second spray nozzles, a spray selection switch, a vacuum inlet port, an agitator assembly, and a handle. The spray selection switch controls whether liquid is expelled from the second spray nozzle when liquid is expelled from the first spray nozzle. The agitator assembly comprises first and second agitators. The first agitator is configured to rotate. The second agitator is configured to reciprocate. The handle is pivotally connected to the rest of the liquid extraction cleaning device and is lockable in several pivotal orientations. The handle can also be pivoted forward from a rearwardly extending direction to an extent that it extends forward horizontally.