Longitudinally adjustable bow for glasses
US5056907A · kind A · utility
2Cited by
1References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 2, 1990 |
| Grant date | Oct 15, 1991 |
| Priority date | — |
| Expiry date | May 2, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C5/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A longitudinally adjustable bow for classes having two sections. A first bow section is formed as a closed hollow section having at least one catch. The second bow section is slidably guided in the first bow section, and has a plurality of stop notches which face and engage the catch and a turned-back extension at its inner end forming a pre-stressed spring facing away from the catch, against the force of which the second bow section can be moved relative to the first bow section for disengagement of the stop notches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.