Heating device, applications therefore, an ohmically resistive coating, a method of depositing the coating using cold spray and a blend of particles for use therein
US12250753B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2019 |
| Grant date | Mar 11, 2025 |
| Priority date | — |
| Expiry date | Jul 11, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2214/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heating device may include a substrate and a heating element disposed on a surface of the substrate. The heating element may include an ohmically resistive coating having a layer thickness of 2 to 300 microns. The ohmically resistive coating may include at least 30% by weight of at least one ductile or malleable metal and a plurality of electrically resistive particles. The ohmically resistive coating may be deposited via the at least one of the cold spray and the solid state deposition performed at a temperature below at least one of a melting temperature and a partially softening temperature of the at least one ductile or malleable metal. The ohmically resistive coating may exhibit less heterogeneity and porosity than a thermally sprayed coating, may have a density of 90% or greater, and may have a porosity of 10% or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.