Remote display arrangement for appliances
US4916439A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1987 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Apr 30, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B1/08
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Disclosed are two arrangements for remotely indicating the status of a washing machine and/or a dryer. In one arrangement, a current sense circuit is employed along with an optional vibration sense circuit to detect whether or not the washing machine or the dryer are on or off. At a change from on-to-off or from off-to-on, the status of the washing machine or dryer is transmitted over the air to a receiver for status display to the operator. In the second arrangement, detection of the status is internal to the washing machine and the dryer and the status includes additional information such as the type of cycle and the amount of time left before the cycle finishes. To avoid constant transmission of such information, the receiver includes a timer which is synchronized to the washing machine/dryer timing circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.