Casing ring for watch movement
US4117660A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1977 |
| Grant date | Oct 3, 1978 |
| Priority date | — |
| Expiry date | Jan 24, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04C3/001
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A casing ring adapted to encircle a watch movement having an external diameter that is smaller than the internal diameter of the case into which it is to be fitted, the ring serving to effectively magnify the movement diameter so that it substantially matches that of the case. The case is provided with an actuating member intended to cooperate with an operating element, such as an electrical switch, incorporated in the movement to carry out a setting or other operating function. The portion of the casing ring interposed between the actuating member and the operating element is swingable to function as an intermediate link therebetween for transmitting the motion of the member to the element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.