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FLANGE JOINT SYSTEM FOR SRF CAVITIES UTILIZING HIGH FORCE SPRING CLAMPS FOR LOW PARTICLE GENERATION

United States Patent Application

*** PATENT GRANTED ***
20150163895
9,756,715
A1
View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A flange joint system for SRF cavities. The flange joint system includes a set of high force spring clamps that produce high force on the simple flanges of Superconducting Radio Frequency (SRF) cavities to squeeze conventional metallic seals. The system establishes the required vacuum and RF-tight seal with minimum particle contamination to the inside of the cavity assembly. The spring clamps are designed to stay within their elastic range while being forced open enough to mount over the flange pair. Upon release, the clamps have enough force to plastically deform metallic seal surfaces and continue to a new equilibrium sprung dimension where the flanges remain held against one another with enough preload such that normal handling will not break the seal.
Biallas, George Herman (Yorktown, VA), Daly, Edward (Yorktown, VA)
14/ 501,920
September 30, 2014
[0002] The United States Government may have certain rights to this invention under Management and Operating Contract No. DE-AC05-06OR23177 from the Department of Energy.