Electronic timer
US4407587A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1982 |
| Grant date | Oct 4, 1983 |
| Priority date | — |
| Expiry date | Jul 30, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04F1/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A plurality of liquid crystal display elements are radially arrayed, display elements corresponding to preset time are kept turned on, and lapse of time is successively and selectively displayed, so that the remaining time and the lapse of time can be quickly recognized from a mutual relation between the lapse of time and the preset time. Furthermore, the display elements are divided into two in the radial direction so that the preset time and the lapse of time can be displayed by the display elements which have been divided. Moreover, the time display unit displays the time in a flashing manner, such that the lapse of time and the like can be recognized more easily.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.