Retractable non-contact sensor system
US6651385B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2001 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Dec 7, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2600/13
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A non-contact sensor system controls movement of a door moving in a first direction by actuation of a device. The system includes a transmitter extending a predetermined distance beyond a leading edge of the door at a first door end for transmitting a signal toward a second door end. The transmitter is attached to the door by a first moveable member which is capable of engaging a surface when the door closes and moving to a retracted position. The sensor system further includes a receiver extending a predetermined distance beyond the leading edge of the door at the second door end in alignment with the transmitter for detecting the signal, and for generating an output signal when the signal is blocked. The receiver is attached to the door by a second moveable member which is capable of engaging the surface when the door closes and moving to the retracted position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.