Claims
- 1. A method of forming an aperture portion of reactor building, whereinan isolation chamber is provided to a roof of said reactor building at a position between said roof of said reactor building and a traveling path of an overhead traveling crane in said reactor building, and an aperture portion for passing a structure therethrough is formed at a location directly above said isolation chamber of said roof of reactor building.
- 2. A method of forming an aperture portion of reactor building as claimed in claim 1, wherein said isolation chamber is provided with doors which are passable of said structure.
- 3. A method of forming an aperture portion of reactor building as claimed in claim 1, wherein doors which are passable of said structure are provided to said isolation chamber after fixing said isolation chamber at said roof of said reactor building.
- 4. A method of forming an aperture portion of reactor building as claimed in claim 1, wherein said structure is a reactor vessel, andsaid location of fixing said isolation chamber is a portion directly above said reactor vessel in said reactor building.
- 5. A method of forming an aperture portion of reactor building as claimed in claims 1, wherein said isolation chamber has a structure to prevent dust generated by forming operation of said aperture portion from diffusing into said reactor building.
- 6. A method of forming an aperture portion of reactor building as claimed in claim 1, wherein a protecting apparatus covering the location where said aperture portion is to be assembled and having doors which are passable of said structure is provided onto said roof of said reactor building prior to forming of said aperture portion.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2000-101180 |
Mar 2000 |
JP |
|
Parent Case Info
This is a continuation application of U.S. Ser. No. 09/805,992, filed Mar. 15, 2001.
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Number |
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Date |
Kind |
5600686 |
Stoss |
Feb 1997 |
A |
6198787 |
Hasegawa et al. |
Mar 2001 |
B1 |
6252922 |
Hasegawa et al. |
Jun 2001 |
B1 |
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Number |
Date |
Country |
6-230188 |
Aug 1994 |
JP |
8-262190 |
Oct 1996 |
JP |
10-39077 |
Feb 1998 |
JP |
11-311693 |
Nov 1999 |
JP |
2000-46983 |
Feb 2000 |
JP |
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Mar 2000 |
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Dec 2000 |
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Continuations (1)
|
Number |
Date |
Country |
Parent |
09/805992 |
Mar 2001 |
US |
Child |
10/299780 |
|
US |