Method for warning of residual amount of liquid detergent
US9115457B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 20, 2012 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Jun 16, 2032 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F2105/58
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method for warning of a residual amount of liquid detergent includes: calculating a total use amount of liquid detergent by adding up a use amount of liquid detergent whenever a washing process is performed; and comparing the total use amount of liquid detergent to a reference amount, and warning of a residual amount of liquid detergent according to the comparison result. Accordingly, a user does not need to frequently check the residual amount of liquid detergent, and may easily fill up a container with the liquid detergent. Furthermore, since a sensor for sensing the residual amount of liquid detergent is not installed, it is possible to reduce the manufacturing cost of the washing machine and to prevent a user from getting an electric shock from a current leaking to the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.