Systems and methods providing a torch that presents as a genuine manufacturer torch to a power source
US11554441B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 20, 2019 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Sep 18, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2103
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Embodiments of welding and cutting systems are disclosed. A welding or cutting system includes a power source to provide electrical power for a welding or cutting process. The system includes a torch having a cryptographic device, and is to be used with the power source during the process and communicate with the power source. The cryptographic device is configured to receive an encryption key seeded by the power source during first time power-on initialization of the welding power source or after the torch is replaced. The cryptographic device is configured to store an unlock code associated with the power source, generate an encrypted message, which includes the unlock code, based on the encryption key, and communicate the encrypted message to the power source. The power source is configured to cease further operation unless the power source determines the torch to be a genuine manufacturer torch based on the unlock code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.