Diaphragm vacuum pump
AssigneeMedela Holding AG
InventorsArmin Felber, Beda Weber, Roland Koch, Etienne Furrer
Life of this patent
Estimating the term…
Abstract
A diaphragm vacuum pump has an electrically operated drive unit and a vacuum diaphragm, which separates a pump chamber into a drive-side part and a drive-remote part and which can be deflected by means of a movable part of the drive unit. The drive unit is an electromagnetic drive unit and the vacuum diaphragm is deflected in the direction of a linear movement generated electromagnetically in the drive unit. Preferably, a ventilation valve is also actuated the movable part. The vacuum pump is relatively small and compact and operates quietly. The vacuum pump is suitable in particular for “hands-free” applications of breastpumps.
Claims18
A diaphragm vacuum pump with an electrically operated drive unit and a vacuum diaphragm, the vacuum diaphragm separating a pump chamber into a drive-side part and a drive-remote part and which can be deflected by a movable part of the drive unit, wherein the drive unit is an electromagnetic drive unit, wherein the movement of the movable part is a linear movement and wherein the vacuum diaphragm is deflected in the direction of the linear movement which is generated electromagnetically in the drive unit.
Dependencies are inferred from the claim text.