Notification Device And Door Opening-Closing Device
Patent No. EP3656642 (titled "Notification Device And Door Opening-Closing Device") was filed by Nabtesco on Oct 22, 2019. The application was issued on Aug 16, 2023.
Patent Summary
Notification device for railway doors that detects stuck door switches and prevents false closure notifications. The device includes a door switch that normally transitions between open and closed states, and an interruption unit that detects abnormal switch behavior and overrides the switch's normal operation to prevent false closure signals.
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Date
Description
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EP3656642
- Application Number
- EP19204557A
- Filing Date
- Oct 22, 2019
- Status
- Granted And Under Opposition
- Jul 14, 2023
- Publication Date
- Aug 16, 2023
- External Links
- Slate, EP3656642B1, Google Patents