Carpet cleaning machine
US6637546B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Sep 20, 2000 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Aug 20, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2201/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A muffler for a steam cleaning apparatus comprising a housing having a first and a second inlet, and an outlet, a plurality of baffles disposed within, and coupled to the housing, wherein the plurality of baffles are covered with a foam; wherein the first inlet is pneumatically coupled to an air pump of the steam cleaning apparatus, and wherein the first inlet provides to the housing a stream of humid air from an application subsystem of the steam cleaning apparatus; and wherein the second inlet receives combustion exhaust from a combustion motor that drives an air pump that is operationally coupled to the application subsystem, and wherein the outlet releases air comprising combustion exhaust of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.