Is a
Patent attributes
Patent Applicant
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Andrew Schreiber0
Jurgen Zinsstag0
Zhixin Li0
Date of Patent
February 22, 2005
0Patent Application Number
102741790
Date Filed
October 18, 2002
0Patent Citations Received
Patent Primary Examiner
Patent 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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