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Device for conveying metered quantities of at least two free-flowing components of a reactive compound

  • US 5,948,367 A
  • Filed: 05/07/1997
  • Issued: 09/07/1999
  • Est. Priority Date: 05/09/1996
  • Status: Expired due to Fees
First Claim
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1. A device for conveying metered quantities of at least two free-flowing components, at least one of which contains abrasive substances, into a mixer which serves to form a reactive compound from the metered quantities of the components, comprising:

  • at least two metering devices which each have at least one pressure vessel formed by two shells which are curved in opposite directions, the pressure vessels each being subdivided by a flexible diaphragm clamped between the two shells into a first part-volume and a second part-volume, the diaphragm being moved without inadmissible overstretching during a filling against the curvature of a first one and during metering against the curvature of a second one of the two shells, the first part-volume which receives the abrasive component being arranged vertically above the second part-volume, the first part volume in each case receives one of the starting components and the second part-volume is acted upon by a metering means in form of an incompressible fluid and is configured to be connected to an evacuable vessel, wherein the pressure vessel which receives the abrasive component is designed and arranged in such a way that the major portion of the abrasive component fed into its first part-volume rests on the flexible diaphragm.

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