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Title: Remote controlled vacuum joint closure mechanism

Abstract

A remotely operable and maintainable vacuum joint closure mechanism for a noncircular aperture is disclosed. The closure mechanism includes an extendible bellows coupled at one end to a noncircular duct and at its other end to a flange assembly having sealed grooves for establishing a high vacuum seal with the abutting surface of a facing flange which includes an aperture forming part of the system to be evacuated. A plurality of generally linear arrangements of pivotally coupled linkages and piston combinations are mounted around the outer surface of the duct and aligned along the length thereof. Each of the piston/linkage assemblies is adapted to engage the flange assembly by means of a respective piston and is further coupled to a remote controlled piston drive shaft to permit each of the linkages positioned on a respective flat outer surface of the duct to simultaneously and uniformly displace a corresponding piston and the flange assembly with which it is in contact along the length of the duct in extending the bellows to provide a high vacuum seal between the movable flange and the facing flange. A plurality of latch mechanisms are also pivotally mounted on the outside of the duct. A firstmore » end of each of the latch mechanisms is coupled to a remotely controlled latch control shaft for displacing the latch mechanism about its pivot point. In response to the pivoting displacement of the latch mechanism, a second end thereof is displaced so as to securely engage the facing flange and maintain the high vacuum seal established by the displacement of the flange assembly and extension of the bellows without displacing the entire duct.« less

Inventors:
;
Issue Date:
OSTI Identifier:
6104450
Application Number:
ON: TI85006370
Assignee:
Dept. of Energy EDB-85-048340
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; VACUUM SYSTEMS; JOINTS; REMOTE CONTROL; BELLOWS; PISTONS; SEALS; CONTROL; MECHANICAL STRUCTURES; 420700* - Engineering- Vacuum Engineering- (-1987); 700209 - Fusion Power Plant Technology- Component Development & Materials Testing

Citation Formats

Doll, D.W., and Hager, E.R. Remote controlled vacuum joint closure mechanism. United States: N. p., 1984. Web.
Doll, D.W., & Hager, E.R. Remote controlled vacuum joint closure mechanism. United States.
Doll, D.W., and Hager, E.R. Wed . "Remote controlled vacuum joint closure mechanism". United States.
@article{osti_6104450,
title = {Remote controlled vacuum joint closure mechanism},
author = {Doll, D.W. and Hager, E.R.},
abstractNote = {A remotely operable and maintainable vacuum joint closure mechanism for a noncircular aperture is disclosed. The closure mechanism includes an extendible bellows coupled at one end to a noncircular duct and at its other end to a flange assembly having sealed grooves for establishing a high vacuum seal with the abutting surface of a facing flange which includes an aperture forming part of the system to be evacuated. A plurality of generally linear arrangements of pivotally coupled linkages and piston combinations are mounted around the outer surface of the duct and aligned along the length thereof. Each of the piston/linkage assemblies is adapted to engage the flange assembly by means of a respective piston and is further coupled to a remote controlled piston drive shaft to permit each of the linkages positioned on a respective flat outer surface of the duct to simultaneously and uniformly displace a corresponding piston and the flange assembly with which it is in contact along the length of the duct in extending the bellows to provide a high vacuum seal between the movable flange and the facing flange. A plurality of latch mechanisms are also pivotally mounted on the outside of the duct. A first end of each of the latch mechanisms is coupled to a remotely controlled latch control shaft for displacing the latch mechanism about its pivot point. In response to the pivoting displacement of the latch mechanism, a second end thereof is displaced so as to securely engage the facing flange and maintain the high vacuum seal established by the displacement of the flange assembly and extension of the bellows without displacing the entire duct.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {2}
}