Method and apparatus for controlling the speed of closing of a movable element
US6883275B2 · kind B2 · utility
26Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2002 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Jul 29, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2201/618
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and system for controlling the descent of a moveable element pivotally attached to a rigid structure. The moveable element is pivotally attached to the rigid structure, and is then pivotally connected to a compressible strut, which is pivotally attached to a linkage pivotally connected to the rigid structure. The descent of the moveable element is controlled using a microcontroller and a motor attached to the linkage, and the control path for the linkage is selected based on a comparison of the angle between the linkage and rigid structure and the angle between the moveable element and the rigid structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.