Carpet cleaning machine
US4167799A · kind A · utility
76Cited by
7References
3Claims
0Family size
Inventor
Key dates
| Filing date | May 10, 1978 |
| Grant date | Sep 18, 1979 |
| Priority date | — |
| Expiry date | May 10, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4083
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A combination foam and steam carpet cleaning machine incorporating separate storage compartments for the hot water and the foaming liquid, automatic control of vacuum wands positioned ahead and to the rear of the steam jets to permit forward and reverse motion during the steam cleaning operation, individual height adjustments for the cleaning brush and the vacuum wand and spring loading of the vacuum wand to insure adequate pressure of the wand against the carpet for maximum vacuuming efficiency. The machine is self-propelled in both forward and reverse directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.