Surface cleaning with cleaning fluid supply shape memory alloy actuator
US7657965B2 · kind B2 · utility
8Cited by
0References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2008 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Dec 30, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4097
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A surface cleaning apparatus comprises a fluid delivery system including a supply of cleaning fluid and a fluid recovery system for drawing dirty cleaning fluid from the surface to be cleaned. The apparatus can comprise a passageway that passes heated motor cooling air in heat exchange with the cleaning fluid to heat the cleaning fluid. The apparatus can further comprise a mixing manifold that mixes first and second cleaning fluids at different concentrations for different cleaning modes. The apparatus can further comprise a fluid valve having a shape memory alloy actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.