Thin film tubular heater
US6376816B2 · kind B2 · utility
50Cited by
15References
2Claims
0Family size
Inventors
Key dates
| Filing date | Mar 2, 2001 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Mar 2, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/46
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A tubular thin film resistance heater including a substrate (10) having an electrically non-conductive surface on which is deposited a thin film electrical conductor (12), such as tin oxide. A pair of electrical terminals (14, 16), preferably bus bars, are electrically connected at spaced apart locations on the conductor (12), such as at longitudinal spaced opposed ends or at circumferentially spaced opposed edges of the conductor (12). The thin film conductor (12) is molecularly bonded to the substrate (10) for durability and efficient heat transfer. A method of forming a tubular thin film resistance heater also is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.