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Membrane Suction Pump Unit

  • US 20100086419A1
  • Filed: 03/04/2008
  • Published: 04/08/2010
  • Est. Priority Date: 03/13/2007
  • Status: Abandoned Application
First Claim
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1. Membrane suction pump unit with a dimensionally stable membrane frame, a dimensionally stable monobloc membrane cover, which has a pump chamber with a floor region and a side wall encircling the floor region and widening outwards away from the floor region, and with a monobloc pump membrane, which has a membrane plate, a flexible membrane piston, at least one inlet valve flap and at least one outlet valve flap, the membrane plate being arranged between the membrane frame and the membrane cover, and membrane frame, pump membrane and membrane cover being connected to one another by means of connecting elements in a preset position, the membrane piston passing through the membrane frame, and the membrane piston covering a pump chamber of the membrane cover, wherein there are more than three connecting elements and in that they form a material and/or positive fit.

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