Fluid control device for a high pressure analytical instrument

Details Fluid control device for a high pressure analytical instrument Fluid control device for a high pressure analytical instrument

2011-06-07

2011-06-07

Freay, Charles G (Department: 3746)

Pumps

Expansible chamber type

Including valve assembly, disassembly, or inspection...

C137S533110, C137S533130, C137S533150

Reexamination Certificate

active

07955059

ABSTRACT:
In various embodiments a fluid control device suitable for high pressure analytical instruments includes a housing having an interior surface with an end wall. The interior surface defines a chamber. A valve assembly disposed in the chamber controls the flow of fluid through the chamber. An end cap is disposed in the housing opposite the end wall to enclose the chamber. The end wall and end cap each have an opening to pass a fluid to the chamber or to remove a fluid from the chamber. The housing and end cap each has an abutment surface to receive the other abutment surface. At least one of the abutment surfaces has a plastic seal coating. A means of compression, such as a compression housing and compression sleeve, is included to engage the end cap to deform the plastic seal coating between the abutment surfaces and thereby seal the chamber.

REFERENCES:
patent: 4139469 (1979-02-01), Rainin et al.
patent: 4387736 (1983-06-01), Major
patent: 4945945 (1990-08-01), Schmid
patent: 4974628 (1990-12-01), Tepermeister
patent: 5605449 (1997-02-01), Reed
patent: 7255328 (2007-08-01), Hunter
patent: 2005/0115840 (2005-06-01), Dolan
English translation of Notice of Rejection for Japanese Patent Application No. 2007-501914 mailed Jun. 8, 2010 (4 pages).

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