Magnetic switch tripping system
US5554833A · kind A · utility
Inventor
Key dates
| Filing date | Sep 26, 1994 |
| Grant date | Sep 10, 1996 |
| Priority date | — |
| Expiry date | Sep 26, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H36/0046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
For use primarily in sliding glass doors and windows for tripping a magnetic switch embedded in the casing as part of a security alarm circuit, a magnetic switch trip comprises an elongated L-shaped insert having a small bar magnet in one leg, with the other leg comprising a stem extending at a 90.degree. angle from the magnet, there being a narrowed, frangible neck between the stem and the magnetic to permit snapping the magnet off of the stem. The insert is used primarily as a single piece by inserting the magnet leg into a hole in the vertical side panel of a sliding door frame, and rotating the insert inside the door until the magnet is vertical, adjacent the overlying door casing. The stem is then plugged into the hole for a permanent mount. Alternative modes of use accommodate other sliding fixture types, resulting in one device eliminating separate inventory requirements for at least three different elements of the magnetic reed switch sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.