Heater panel of a radiant heater compromising a heating spiral
US7521654B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2007 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Oct 14, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heater panel of a radiant heater includes a heating spiral provided on a panel element and mechanically connected to the panel element with a portion of a spiral turn. With the object of providing a heater panel with a stable arrangement of the heating spiral on the panel element by which a high power density is achievable, each spiral turn is detachably connected to the panel element by three spaced-apart contact spots. Two of said contact spots are located on the outer circumference of the spiral turn in such a distance to each other that the radii originating at them define an angle of less than 180°, and the third contact spot is located on the inner circumference of the spiral turn within the portion of the spiral turn facing the panel element and confined by the two outer contacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.