Platinum plated quartz tubes and method of making the same
US5689613A · kind A · utility
1Cited by
9References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 26, 1996 |
| Grant date | Nov 18, 1997 |
| Priority date | — |
| Expiry date | Mar 26, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/0038
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The quartz tubes of the heating elements of an infrared oven have a limited portion of their circumference coated with a mixture containing platinum. The platinum coating provides a reflective surface to direct infrared radiation towards the object to be heated within the oven. The heating element tubes coated with platinum provide substantially the same performance and are significantly less expensive to manufacture than conventional heating element tubes with a gold reflective coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.