Solid state telephone protector module
US4856060A · kind A · utility
7Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1988 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Aug 1, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/176
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A solid state protector module for individual subscriber circuits particularly suited for use with laminar type quick clip connector blocks. The module comprises a printed circuit board mounting integrated circuit protector units which are thermally sensitive. Solder preforms are resiliently urged against integrated circuit units by a shorting spring, mounting the solder preforms allowing the shorting spring to ground the individual circuit. The solder preforms including a camming circuit allowing the shorting spring to urge the preform perpendicularly to the normal direction of spring movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.