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Title: O-Ring sealing arrangements for ultra-high vacuum systems

Abstract

An all metal reusable O-ring sealing arrangement for sealing two concentric tubes in an ultra-high vacuum system. An O-ring of a heat recoverable alloy such as Nitinol is concentrically positioned between protruding sealing rings of the concentric tubes. The O-ring is installed between the tubes while in a stressed martensitic state and is made to undergo a thermally induced transformation to an austenitic state. During the transformation the O-ring expands outwardly and contracts inwardly toward a previously sized austenitic configuration, thereby sealing against the protruding sealing rings of the concentric tubes.

Inventors:
 [1];  [2]
  1. (Knoxville, TN)
  2. (Mt. Lebanon, PA)
Publication Date:
OSTI Identifier:
863941
Patent Number(s):
US 4281841
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
DOE Contract Number:  
E(11-1)-3073
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
o-ring; sealing; arrangements; ultra-high; vacuum; systems; metal; reusable; arrangement; concentric; tubes; heat; recoverable; alloy; nitinol; concentrically; positioned; protruding; rings; installed; stressed; martensitic; undergo; thermally; induced; transformation; austenitic; expands; outwardly; contracts; inwardly; previously; sized; configuration; sealing rings; vacuum systems; thermally induced; concentric tubes; o-ring seal; ultra-high vacuum; sealing arrangement; o-ring sealing; sealing arrangements; concentrically positioned; /277/29/285/

Citation Formats

Kim, Chang-Kyo, and Flaherty, Robert. O-Ring sealing arrangements for ultra-high vacuum systems. United States: N. p., 1981. Web.
Kim, Chang-Kyo, & Flaherty, Robert. O-Ring sealing arrangements for ultra-high vacuum systems. United States.
Kim, Chang-Kyo, and Flaherty, Robert. Thu . "O-Ring sealing arrangements for ultra-high vacuum systems". United States. https://www.osti.gov/servlets/purl/863941.
@article{osti_863941,
title = {O-Ring sealing arrangements for ultra-high vacuum systems},
author = {Kim, Chang-Kyo and Flaherty, Robert},
abstractNote = {An all metal reusable O-ring sealing arrangement for sealing two concentric tubes in an ultra-high vacuum system. An O-ring of a heat recoverable alloy such as Nitinol is concentrically positioned between protruding sealing rings of the concentric tubes. The O-ring is installed between the tubes while in a stressed martensitic state and is made to undergo a thermally induced transformation to an austenitic state. During the transformation the O-ring expands outwardly and contracts inwardly toward a previously sized austenitic configuration, thereby sealing against the protruding sealing rings of the concentric tubes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1981},
month = {Thu Jan 01 00:00:00 EST 1981}
}

Patent:

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