Electromagnetic locking system for a safety switch
US7205872B2 · kind B2 · utility
8Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2003 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Apr 3, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7057
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A locking system (1) for a safety switch includes a read head (2) and an actuator (3), each of which is provided with first or second componentry (10, 14) encompassing electrical and/or electronic components that interact with each other in an electrically contactless manner, thereby controlling the safety switch. The locking system actuator (3) can be locked to the read head (2) by a switchable electromagnet (7) which interacts with a counterelement (12). The locking action is controlled by a sensor element (31, 32, 33, 34), the output signal of which depends on the magnetic field generated by the electromagnet (7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.