Method and device for removing a specimen from within the vessel of a nuclear reactor being decommissioned
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 7, 1993
Grant Date -
N/A
app pub date -
Oct 21, 1992
filing date -
Oct 21, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and device for removal of a specimen (30), especially a parallelepipedal specimen, from within the internal wall of the vessel of a nuclear reactor which is at the end of its service and whose core has previously been dismantled, but which retains a high residual radioactivity. A rotating platform (10) carrying tools (23, 24) for cutting out by electrical discharge is inserted into the vessel (1), maintained under protective water (7). A first electrode produces a recess in a direction perpendicular to the internal wall (21) of the vessel, delimiting the external contour of the specimen, and a second electrode cuts the rear of the latter to a specified depth, before the withdrawal thereof from the wall. The specimen thus obtained is then extracted from the vessel.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully