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US 2014/0271276 A1Published application
Variable stroke length electrically operated diaphragm pump
OwnerLester B. Asheinventor
Life of this patent
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Abstract
A variable stroke length EOD pump system is provided that includes a diaphragm pump and an electromagnetic linear actuator that operates the diaphragm pump. The linear actuator includes two stator halves, and an armature. The armature is supported for linear motion along an axis of and between field poles of the stator halves. Each stator half may also include a drive coil partially surrounded by a magnetically permeable core.
Claims5
An electrically operated diaphragm pump system comprising:
- a diaphragm pump;
- an electromagnetic linear actuator that operates the diaphragm pump;
- wherein the linear actuator includes:
- two stator halves, and
- an armature;
- wherein the armature is supported for linear motion along an axis of and between field poles of the stator halves;
- and
- wherein each stator half includes a drive coil partially surrounded by a magnetically permeable core.
5 more elements
An electrically operated diaphragm pump system comprising:
- a diaphragm pump;
- an electromagnetic linear actuator that operates the diaphragm pump;
- wherein the linear actuator includes:
- two stator halves, and
- an armature;
- wherein the two stator halves include drive coils and magnetic cores;
- wherein the armature is located in a space located between the two stator halves;
- wherein the armature is supported for linear motion along an axis of and between field poles of the stator halves;
- and
- a drive rod movable with the armature to move a pump diaphragm backer plate.
7 more elements
Dependencies are inferred from the claim text.