Switch for resetting an analog clock hour hand
US5636184A · kind A · utility
Inventor
Key dates
| Filing date | May 6, 1996 |
| Grant date | Jun 3, 1997 |
| Priority date | — |
| Expiry date | May 6, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B27/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The timepiece has a gear housing containing a horometric movement and a minute hand gear 12 operatively connected to the movement. Also, the timepiece comprises a drive gear 2 operatively connected to the movement, a cylinder gear 4 engaging the drive gear 2 by crown teeth 24 disposed on both gears 2 and 4, a leaf spring 6 biasing the cylinder gear 4 against the drive gear 2, a rod 8 and a sliding switch 10 pivotally disposed on the rod 8. The sliding switch 10 has a switch tooth 68 that removably engages the cylinder gear 4, forcing the crown teeth 24 to slide into an adjacent position which independently moves an hour hand 54. Other embodiments employ a spindle switch 78 and a pop-up switch 88.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.