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US 4,357,585 AGranted
Laminated magnetic switch
AssigneeW. H. Brady Co.
InventorGary J. Wirth
Life of this patent
Estimating the term…
Abstract
A laminated reed switch assembly in which the reed is movable between two positions, in one of which it contacts two pole pieces.
Claims12
A switch which comprises a multiplicity of thin layers and a reed,
- said reed being mounted for movement between a first position and a second position in an opening defined by certain of said thin layers,
- said reed being formed of material responsive to magnetic forces,
- said layers including also a first pole piece and a second pole piece,
- said reed being in contact with both said pole pieces in one of said two positions.
1 more element
A multilayer switch which comprises
- a cover sheet layer,
- a reed spacer layer having a reed opening therethrough, said reed spacer layer being mounted on top of said cover sheet layer,
- a suspension layer mounted on said reed spacer layer and having a suspension opening therethrough, said suspension opening being located over said reed spacer opening,
- a pole spacer layer mounted on said suspension layer and having a pole opening located over said suspension opening,
- a top layer including a first pole piece, a second pole piece and a pole filler located between said first and second pole pieces, portions of said first and second pole pieces extending over opposite ends of said pole opening, and
- a reed made of material responsive to magnetic forces mounted on said suspension layer for movement within said reed opening, said suspension opening and said pole opening between a first position and a second position,
- said reed being in contact with both said pole pieces in one of said two positions.
4 more elements
Dependencies are inferred from the claim text.