Solenoid apparatus
AssigneeEnfield Technologies, LLC
InventorsBrett E. Nagel, Jonathan B. Gamble
Life of this patent
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Abstract
An apparatus may include a ferromagnetic housing defining a housing cavity, an electrically-conductive coil disposed in the housing cavity and defining a coil cavity, a ferromagnetic core piece disposed in the coil cavity, a ferromagnetic pole piece comprising a first face in contact with the core piece and a projection extending from a second face of the pole piece opposite the first face, a flexible element defining an opening, where the projection is disposed within the opening and the flexible element is disposed between a portion of the projection and the first face of the pole piece, and a ferromagnetic armature coupled to the flexible element, where the flexible element is disposed between at least a portion of the armature and the first face of the pole piece.
Claims22
An apparatus comprising:
- a ferromagnetic housing defining a housing cavity;
- an electrically-conductive coil disposed in the housing cavity and defining a coil cavity;
- a ferromagnetic core piece disposed in the coil cavity;
- a ferromagnetic pole piece comprising a first face in contact with the core piece and a projection extending from a second face of the pole piece opposite the first face;
- a flexible element defining an opening, where the projection is disposed within the opening and the flexible element is disposed between a portion of the projection and the first face of the pole piece;
- and
- a ferromagnetic armature coupled to the flexible element, where the flexible element is disposed between at least a portion of the armature and the first face of the pole piece.
An apparatus comprising:
- a ferromagnetic housing defining a housing cavity;
- an electrically-conductive coil disposed in the housing cavity and defining a coil cavity;
- a ferromagnetic core piece disposed in the coil cavity;
- a ferromagnetic pole piece comprising a first face and an internal surface defining a pole piece cavity, the first face comprising a first ferromagnetic portion in contact with the core piece and a recess comprising substantially non-magnetic material;
- and
- a ferromagnetic armature, where a portion of the armature is disposed within the pole piece cavity.
Dependencies are inferred from the claim text.