Mat monitor module
US5636477A · kind A · utility
5Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1996 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Apr 4, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/132
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A mat monitor for an automatic swing door system is mountable in-line with an approach mat and a safety mat and the controller for the automatic door system. The monitor emits a visible light to indicate that a mat is properly operating without requiring that the door cycle through an opening/closing sequence. In one embodiment, a green light is illuminated to indicate that the approach mat is properly functioning and a red light is illuminated to indicate that a safety mat is properly functioning. The mat monitor is preferably mounted at the underside of the header adjacent to the controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.