Soldering material for spectacle frame and spectacle frame in which said soldering material is used
US4976529A · kind A · utility
12Cited by
0References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1989 |
| Grant date | Dec 11, 1990 |
| Priority date | — |
| Expiry date | Apr 13, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C5/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A shape memory alloy is used for face-contacting parts (1, 3, 4, 5; 101) and lens-fixing parts (2) of a spectacle frame, and parts (12, 13; 103) connected thereto are formed of titanium, a titanium alloy, nickel, or a chromium alloy. These parts are suitable soldered by a soldering material (111) formed of 5-15 wt. % of palladium, 5-15 wt. % of gallium, and a balance consisting of silver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.