Ultra high vacuum ferrofluidic seals and method of manufacture

Details Ultra high vacuum ferrofluidic seals and method of manufacture Ultra high vacuum ferrofluidic seals and method of manufacture

2005-02-22

2005-02-22

Packard, Alison K. (Department: 3676)

Seal for a joint or juncture

Seal between relatively movable parts

Close proximity seal

C277S649000

Reexamination Certificate

active

06857635

ABSTRACT:
A ferrofluid seal incorporates a metal seal comprised of two knife-edges and a flat metal washer is formed between a pole piece and the housing at the axial interface between the parts. One knife edge is machined into the inner face of the housing flange and the other knife edge is machined into the opposing pole piece face. This metal seal effectively seals the pole piece to the housing with a seal suitable for ultra high vacuum applications.

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