PTC thermal protector
US4698614A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1986 |
| Grant date | Oct 6, 1987 |
| Priority date | — |
| Expiry date | Apr 4, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G11/86
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A thermal protector using a polymeric PTC element, with broad upper and lower surfaces, sandwiched between and held in intimate mechanical and electrical contact over substantially its entire broad surfaces with inner broad surfaces of upper and lower plate-terminals. Electrical insulation between the upper and lower plate-terminals outside the areas of contact of the plate-terminals and the PTC element electrically insulates the upper and lower plate-terminals from one another. The plate-terminals are clamped mechanically, preferably in such a way that the PTC element is biased continuously against the broad surfaces of the plate-terminals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.