Pump for liquid beverage preparation devices

  • US 8,733,230 B2
  • Filed: 05/25/2009
  • Issued: 05/27/2014
  • Est. Priority Date: 05/28/2008
  • Status: Active Grant
First Claim
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1. A device for the preparation of a liquid food or beverage from a portioned ingredient placed within a beverage preparation chamber, the device comprising:

  • a housing,a pump comprising a pump chamber that contains a piston moveably mounted therein and vibrates during use, for displacing a liquid from a pump inlet to a pump outlet,a liquid supply which is in fluid connection with the liquid inlet of the pump, anda pump support securing the vibrating pump chamber to the housing,a duct that is mechanically connected to the housing and to one of the pump inlet or pump outlet and that is arranged to guide liquid from or to the pump,wherein the pump support comprises an elastic support member for resiliently supporting the vibrating pump chamber in the housing, andwherein the duct is rigid and connected with the pump inlet or pump outlet by an elastic sealing member for resiliently connecting the rigid duct to the vibrating pump chamber.

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