Fluid-handling machine incorporating a closed loop system for controlling liquid load
US5408716A · kind A · utility
9Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1994 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Jan 24, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/729
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A fluid-handling machine, such as a dishwasher or clothes washer, measures liquid load by detecting liquid pressure oscillations. The machine, which includes both a frame for containing articles and a system for circulating or distributing a liquid in the frame, shuts off flow of liquid provided to the frame when the detected liquid pressure oscillations substantially cease, as determined in accordance with a fuzzy logic control strategy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.