Timepiece including base plate formed of resin and wheel train
US7167420B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 20, 2002 |
| Grant date | Jan 23, 2007 |
| Priority date | — |
| Expiry date | Apr 6, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a timepiece which has a resin substrate, rotors, and wheel trains, and relates to a wheel train apparatus which has a resin substrate, bearing members, gear wheel, and the like. The invention is constituted by a timepiece comprising; a gear wheel, and a substrate which supports a shaft of a rotor and/or a shaft of the gear wheel, the substrate being formed from a filled resin. Alternatively the invention is constituted by a wheel train apparatus comprising: a gear wheel; a substrate which supports one shaft section of the gear wheel, and a bridge which rotatably supports an other shaft section of the gear wheel, the substrate and the bridge being formed from a filled resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.