High performance washing process for vertical axis automatic washer
US4987627A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1990 |
| Grant date | Jan 29, 1991 |
| Priority date | — |
| Expiry date | Jan 5, 2010 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F39/02
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method for laundering a textile wash load is provided for use in a vertical axis washing machine in which a concentrated detergent solution is continuously applied to a spinning wash load for a predetermined time period to thoroughly wet the clothes load. The initial charge of detergent is thoroughly mixed with the detergent in a recirculation step before being applied to the clothes load. The concentration wash liquid is incrementally applied to the spinning clothes load until a sufficient amount of wash liquid is detected as having been introduced to the wash zone. That amount of wash liquid is then recirculated and reapplied to the clothes load for a predetermined length of time. After the time period, additional water is added to the solution to dilute it to a normal concentration and then mechanical agitation and rinsing steps are conducted to complete the wash cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.