Title:
BAYONET COUPLING FOR LOW TEMPERATURE FLUID
Document Type and Number:
Japanese Patent JP3338932
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a bayonet coupling for low temperature fluid to reduce manufacturing cost by modifying a vacuum jacket part mounted on a mounting hole piercing through the wall surface of a vacuum vessel and easily bring the heat insulation vacuum part of a vacuum jacket part into a high vacuum state.
SOLUTION: This coupling comprises a fixed heat insulation pipe 2; and a moving heat insulation pipe 3 fitted in the fixed heat insulation pipe 2. The fixed heat insulation pipe 2 is mounted on the mounting hole 10 of a vacuum vessel 9 and the fixed heat insulation pipe 2 has a vacuum jacket part 6 forming a heat insulation vacuum part 13, and a through-hole 31 for communication to perform intercommunication between the heat insulation vacuum part 13 and a vacuum chamber 12 in the vacuum vessel 9 is formed in the vacuum jacket part 6.
Inventors:
Shunji Yamada
Application Number:
JP13618699A
Publication Date:
October 28, 2002
Filing Date:
May 17, 1999
Export Citation:
Assignee:
Sumitomo Heavy Industries Ltd.
International Classes:
F16L19/02; F16L27/08; F16L39/04; F16L41/08; H01J37/18; F16L59/16; H01L21/265; H01L21/302; H01L21/3065; (IPC1-7): F16L59/16; F16L27/08; F16L39/04; F16L41/08
Domestic Patent References:
| JP63101594A | ||||
| JP1144389A | ||||
| JP11153290A | ||||
| JP2000213845A | ||||
| JP2000320791A | ||||
| JP6144098U | ||||
| JP228314Y2 |
Attorney, Agent or Firm:
Hiroshi Ikezawa
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