Basic structure for a liquid chromatography degasser
AssigneeHewlett-Packard Company
InventorManfred Berndt
Life of this patent
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Abstract
A basic structure for a liquid chromatography degasser, includes a supporting structure with a perimeter encompassing an opening in which support ribs are arranged. The opening is covered by a membrane made from a material with a good permeability index. Two basic structures are combined to form a basic module. A liquid chromatography degasser comprises at least one or a plurality of basic modules, which are stacked on top of each other, whereby a micro-vacuum-pump is arranged at the top of the stack, and an inlet and an outlet for the liquid being degassed are provided at the bottom of the stack.
Claims22
A basic structure for a liquid chromatography degasser, comprising:
- a supporting structure having opposed surfaces and a perimeter encompassing an opening, and with support means arranged in the opening between said opposed surfaces, said opening extending between said opposed surfaces;
- a membrane covering the opening at one of said opposed surfaces and positioned on said support means, said support means comprising elements arranged to support the membrane, said elements having at least a portion with a thickness of less than said supporting structure;
- and
- a further supporting structure and further membrane positioned at a second of said opposed surfaces and cooperating with said support means to provide a nonlinear flow path in said opening.
Dependencies are inferred from the claim text.