Electromagnetic coupling with a slider layer
US8678141B2 · kind B2 · utility
2Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2007 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Aug 6, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B13/125
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An exemplary electromagnetic coupling device includes an electromagnet and a vane member that is selectively magnetically coupled with the electromagnet. A non-magnetic slider layer is supported on one of the electromagnet or the vane member such that the slider layer is between the electromagnet and the vane member. The slider layer maintains a spacing between the electromagnet and the vane member. In a disclosed example, the electromagnetic coupling device is used for coupling an elevator car door to a hoistway door for moving the doors in unison between open and closed positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.