Washing apparatus and method
US4925495A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1988 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Jan 25, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61H2205/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Method and apparatus for periodically cleaning washing apparatus in which washing liquid is intermittently circulated through a washing chamber adapted to contain the hand of a user. Cleaning is accomplished by intermittently circulating a cleaning liquid through the chamber while displaying a warning to potential users to not use the apparatus during the cleaning cycle. Cleaning is initiated (a) when the apparatus has been used for hand washing a predetermined number of times, (b) a predetermined period of time has elapsed since the last cleaning cycle, (c) the apparatus has been serviced, or (d) following interruption of the electrical power supply to the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.