Universal time clock
US4671672A · kind A · utility
4Cited by
5References
7Claims
0Family size
Inventor
Key dates
| Filing date | Jul 15, 1986 |
| Grant date | Jun 9, 1987 |
| Priority date | — |
| Expiry date | Jul 15, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B19/226
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A universal time clock that can be constructed in a very simple and inexpensive way and the globe of which is driven by the hour tube of a left-hand-rotating clockwork, a network of lines being marked on a bell-shaped top put over the globe. The lines extend from the center point of the bell-shaped top, along the shortest route, to the lower end of said bell-shaped top. For the adjusting of the network of lines, the bell-shaped top can be turned manually on the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.