Elevator element for driving or reversing an elevator suspension means in an elevator system
US8348019B2 · kind B2 · utility
4Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2008 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Jan 18, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18848
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In an elevator element for driving or reversing an elevator suspension device in an elevator system, that interacts with an elevator suspension device, the arithmetic mean of the roughness value of the contact surface measured in the circumferential direction of the elevator element, and the mean roughness value of the contact surface measured in the axial direction of the elevator element, are different. The arithmetic mean roughness value of the contact surface measured in the circumferential direction of the elevator element is less than 1 micrometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.