Safety garage door
US7122987B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 2005 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Oct 6, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/106
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A safety garage door apparatus includes a garage door, two tracks, a controller, a linking device and a detecting device. Two tracks are installed on two sides of the garage door, respectively. The controller includes a motor, a driving device connected to the motor, and a microprocessor. The linking device includes a rail, a rack slidably mounted in the rail, and a linkage with one end connected to the rack and the other end connected to the garage door. The rack is connected with the driving device. The detecting device is mounted in the controller to continually detect a location of the rack so that a moving speed of the rack is determined by the microprocessor to compare with a predetermined rate to determined whether an operation of opening or closing the garage door needs to be stopped or reversed, or a maintenance of the garage door apparatus is needed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.