Self-regulating electric heater
US4395623A · kind A · utility
35Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1981 |
| Grant date | Jul 26, 1983 |
| Priority date | — |
| Expiry date | Mar 2, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/141
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A self-regulating electric heater includes a casing made of ceramic and a heating unit housed in the casing. The heating unit includes a PTC body for generating heat when electric current is supplied, heat dissipating plates essentially made of brass and coupled to the PTC body in such a manner as to sandwich the PTC body between the heat dissipating plates and terminals connected to each of the heat dissipating plates for the external electrical connection. The self-regulating electric heater further includes lid member and sealing member for sealing the casing hermetically.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.