Time indicating device
US3956879A · kind A · utility
Inventor
Key dates
| Filing date | Feb 11, 1974 |
| Grant date | May 18, 1976 |
| Priority date | — |
| Expiry date | Feb 11, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04C17/0016
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention provides a time indicating device which contains an endless indicating belt carrying indicating means thereon that define three or more equally spaced segments of said belt, the belt passing beneath a face plate with an elongated opening therein mounted adjacent the belt so that from time to time said indicating means carried by said belt are visible through said opening, the length of said opening substantially corresponding to the length of one of said segments so that when said belt is moved past said opening there will be a moment when one of said segments will appear over the entire length of said opening. The device is especially useful in clocks where a plurality of belts are employed which are driven at different speeds to indicate seconds, minutes, hours or, if desired, additional belts can be used to indicate days, weeks, months or other time periods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.