Monitoring device for swinging deadlock
US5825288A · kind A · utility
26Cited by
9References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 5, 1997 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | May 5, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/68
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A monitoring device for narrow stile, metal frame doors having a mounting plate securable to the door jamb adjacent the strike slot. A switch is mounted on a bracket extending from the face plate and the switch is connectable to an existing alarm system. A trigger normally engages the switch actuator pin. When the closure or door is closed and the dead bolt engaged in the strike slot, the trigger will disengage the pin allowing the alarm system to be armed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.