Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Reexamination Certificate
2006-12-19
2006-12-19
Lavilla, Michael E. (Department: 1775)
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
C428S610000, C428S650000, C428S670000, C428S680000, C428S450000, C427S383300, C427S383700, C228S262500, C228S262700
Reexamination Certificate
active
07150924
ABSTRACT:
Discloses is a metal-based resistance heat-generation element. The element comprises a core made of a platinum group metal or refractory metal, and a coating film formed on the core. The coating film has at least two layers including a core-side inner layer of a Re—Cr based σ (sigma) phase and a surface-side outermost layer of an aluminide or silicide. Alternatively, the element may comprise a core made of an alloy containing a platinum group metal or refractory metal and Re and Cr diffused therein, and a coating film formed on the core. The coating film has at least one layer including an aluminide or silicide layer.
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Agency of Industrial Science and Technology
Lavilla Michael E.
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