Automatic door with position-dependent force limiting
US8729837B2 · kind B2 · utility
6Cited by
9References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2009 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | May 13, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/45242
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of controlling the motion of a moveable door includes determining the direction that the door is moving with respect to its anticipated closed position, and based on the direction, regulating an amount of force that is available to the door for its motion. The method may further include monitoring the position of the door as it is moving, and adjusting the motion of the door and regulating the amount of force available to the door for its motion, based on the calculated difference between the door's position as detected during monitoring and its expected position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.