Method of making a microwave field director structure having V-shaped vane doublets
US8108992B2 · kind B2 · utility
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19References
11Claims
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Key dates
| Filing date | Oct 10, 2008 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | Feb 19, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53413
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of making a self-supporting field director structure for use in heating an article in a microwave oven comprises in any operative order, the steps of folding a first and a second elongated vane blank along a central fold line to form at least two V-shaped vane doublets; inserting each of the vane doublets into a slotted annular support member so that each vane in each vane doublet extends through an adjacent slot in the annular support member; and attaching the vane doublets at their vertices to define a vane array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.