Patent · US Expired

Apparatus for degassing liquids

US6258154A · kind A · utility

32Cited by

12References

15Claims

0Family size

Assignee

Hewlett-Packard Company, L.P. · US

Inventors

Manfred Berndt · Waldbronn, DE
Werner Schomburg · Remchingen, DE
Zeno Rummler · Blankenloch, DE
Ralf-Peter Peters · Bensberg, DE
Mario Hempel · Braunschweig, DE

Key dates

Filing date	Jul 15, 1999
Grant date	Jul 10, 2001
Priority date	—
Expiry date	Jul 15, 2019

Classification

Technology area (CPC G)Physics
CPC primaryG01N30/34
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An apparatus for degassing liquids comprises a cavity through which liquid is conducted, with gas being removed from the liquid through at least one of the limiting faces of the cavity by providing on the side of the face distal to the cavity a smaller pressure than within the cavity. The apparatus is characterized in that the limiting face between the cavity and the region having reduced pressure compared to the cavity is formed by at least one thin membrane, having a thickness of less than about 10 micrometers, and in that a porous support structure for supporting the membrane is provided. The degasser can be miniaturized and integrated into a liquid chromatograph.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.