Flat ceramic heater having discrete heating zones
US5408574A · kind A · utility
561Cited by
45References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1993 |
| Grant date | Apr 18, 1995 |
| Priority date | — |
| Expiry date | Mar 23, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24F40/20
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A plurality of resistive heating elements and conductive elements are screenprinted onto a ceramic substrate to form a heater having multiple resistive heating elements. Slots formed between adjacent resistive heating elements members provide air gaps to thermally insulate each heating element from neighboring elements. Gold-plated leads provide low contact resistance for receiving power from a battery for energizing each of the resistive heating elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.