Sheet heater, and windshield device for vehicle
US12016093B2 · kind B2 · utility
0Cited by
3References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 20, 2018 |
| Grant date | Jun 18, 2024 |
| Priority date | — |
| Expiry date | Jan 15, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/016
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sheet heater comprises a sheet form heating unit configured from a wire heater. The heating unit comprises a first heating unit positioned along a peripheral edge of the area subject to heating, and a second heating unit positioned at an area surrounded by the first heating unit. The second heating unit comprises a plurality of meandering parts, with mutually adjacent meandering parts overlapping each other in the meandering direction. In the heating unit, the width (WL) of the wire heater is greater than the width (WP) between mutually adjacent wire heaters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.