Garage door opener with light control
US5969637A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1996 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Apr 24, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A garage door operator with light control includes a garage door movement apparatus for moving the garage door in an open and in a close direction within a doorway, a light having an on and an off state, a controller for generating a door movement signal for operating the door movement apparatus and for generating a light enable signal for operating the light in one of a plurality of on and off states and an obstacle detector for detecting the presence of an obstruction in the doorway. The controller responds to the door state (traveling open, traveling closed and stopped open) in order to control operation of the door and activation of the lights. When the door state indicates the door is stopped open and the obstacle detector detects an obstruction in the doorway, the controller generates a light enable signal for enabling the light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.