Hall effect linear motion switch
AssigneeOak Industries Inc.
InventorRaymond F. Lewandowski
Life of this patent
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Abstract
A contactless linear motion switch has a housing and a Hall effect sensing circuit positioned within the housing. A plunger carrying a permanent magnet moves within the housing toward and away from the Hall effect sensing circuit. A concentrator is positioned within the housing and has a portion positioned adjacent the Hall effect sensing circuit and a further portion positioned in contact with the permanent magnet when the magnet is positioned away from the Hall effect sensing circuit.
Claims9
In a contactless linear motion switch, a housing, a Hall effect sensing circuit positioned within said housing, a plunger positioned for movement in said housing, a permanent magnet carried by said plunger for movement toward and away from said Hall effect sensing circuit, and a concentrator fixed in position within said housing, said concentrator having a portion extending adjacent said Hall effect sensing circuit and a further portion positioned in contact with said magnet when said magnet is positioned away from said Hall effect sensing circuit.
Dependencies are inferred from the claim text.