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Title: Flange joint system for SRF cavities utilizing high force spring clamps for low particle generation

Patent ·
OSTI ID:1378934

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.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-06OR23177
Assignee:
JEFFERSON SCIENCE ASSOCIATES, LLC
Patent Number(s):
9,756,715
Application Number:
14/501,920
OSTI ID:
1378934
Resource Relation:
Patent File Date: 2014 Sep 30
Country of Publication:
United States
Language:
English

References (15)

Flexible Connection and Seal patent October 1948
Two-Part Mine Prop patent September 1960
Clip patent May 1963
Joint Construction for Glass Pipe and the Like patent March 1968
Safety Shield for Flanged Pipe Coupling patent November 1974
Quick coupling device patent July 1977
Heat-responsively self-sealing protective jacket for expansion joints patent November 1977
Method and apparatus for axially loading threaded connectors patent June 1978
Flexible pipe connection patent September 1980
Process for creating a protective split sleeve patent December 2000
Valve containment bag patent June 2001
Pipe coupling with assembly tool patent March 2003
Transition safety net patent February 2006
On-axis RF coupler and HOM damper for superconducting accelerator cavities patent March 2014
Protective Shield for Concrete Hose Joints patent-application May 2016

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