Barrier movement control safety method and apparatus
US7127847B2 · kind B2 · utility
45Cited by
16References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2002 |
| Grant date | Oct 31, 2006 |
| Priority date | — |
| Expiry date | Feb 19, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2209/08
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A barrier mount system is disclosed which opens and closes a barrier such as a gate or garage door in response to user generated commands. Obstruction detection apparatus is provided for safety of operator. When an obstruction is sensed, the barrier movement system is inhibited from responding to user generated commands until a predetermined event occurs. The event may be passage of a predetermined amount of time or barrier movement of a particular amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.