Alarm for a sliding door or the like
US4472709A · kind A · utility
Inventor
Key dates
| Filing date | Aug 24, 1983 |
| Grant date | Sep 18, 1984 |
| Priority date | — |
| Expiry date | Aug 24, 2003 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B45/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An alarm for a sliding door or the like is provided. The alarm is operatively associated with a movable frame and a stationary frame of a sliding door assembly. It has a plunger engagable with one frame or the other, which plunger is urged outwardly and activates a signal if the alarm is removed from its position. The alarm includes a case in which a modular component can be inserted with the component including a source of power, contacts, and a signal which can be an audible signal or a sending signal which activates a remote burglar alarm. The case of the alarm has a lock which can lock the plunger in place when the alarm is removed by the occupant. The plunger is also designed to be prevented from being pushed back into the case to turn off the alarm without the use of an elongate element insertable into an access opening in the case.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.