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:
-
- Knoxville, TN
- Mt. Lebanon, PA
- Issue Date:
- OSTI Identifier:
- 863941
- Patent Number(s):
- 4281841
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23P - OTHER WORKING OF METAL
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16L - PIPES
- 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}
}
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