Electrical resistors – With electrical shield
Patent
1992-06-10
1993-08-17
Lateef, Marvin M.
Electrical resistors
With electrical shield
338 12, 338324, 338172, 338200, H01C 106
Patent
active
052373045
ABSTRACT:
A magnetically sensitive switch is provided with an electromagnetic interference shield molded within the housing of the switch. In one embodiment, the magnetically sensitive switch is a vane switch for use in an automobile ignition system. The electromagnetic interference shield is formed by appropriately bending a flat sheet at a plurality of bend lines to form a box-like structure. The box like structure has five surfaces and one or more connection legs extending from one of the surfaces. One surface of the box-like structure also serves as a potting dam when a potting material is deposited into the cavity formed by the five surfaces during the process by which internal components are potted within the cavity of the EMI shield. The vane switch also includes a magnet encapsulated within its housing structure and spaced apart from the magnetically sensitive device within the EMI shield by a predetermined gap. The gap is shaped and sized to permit a portion of a rotatable member to pass therethrough between the magnet and the magnetically sensitive device to affect the magnetic field approximate the device.
REFERENCES:
patent: 3673537 (1972-06-01), Greger
patent: 4125821 (1978-11-01), Masuda
patent: 4311981 (1982-01-01), Luzynski
patent: 4369376 (1983-01-01), Ertl et al.
patent: 4508092 (1985-04-01), Kiess et al.
patent: 4644315 (1987-02-01), Hodges
patent: 4677946 (1987-07-01), Tomagne
Honeywell Inc.
Lanyi William D.
Lateef Marvin M.
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