Magnetic switch tripping system

Details Magnetic switch tripping system Magnetic switch tripping system

1994-09-26

1996-09-10

Scott, J. R.

Electricity: circuit makers and breakers

Special application

Actuated concurrently with operation or use of art device

335205, H01H 316, H01H 900

Patent

active

055548334

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.

REFERENCES:
patent: 3710369 (1973-01-01), Takahashi
patent: 4057773 (1977-11-01), Cohen
patent: 4213110 (1980-07-01), Holce
patent: 4292629 (1981-09-01), Kerr et al.
patent: 4438430 (1984-03-01), Young et al.
patent: 4677424 (1987-06-01), Hollinger
patent: 4990898 (1991-02-01), Greene
patent: 5416456 (1995-05-01), Light

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