US4432942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for filling a container with radioactive solid wastes
Assignee: Individual
•
Filing: 1981-10-13
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Granted: 1984-02-21
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Expires: 2001-10-13
Abstract
Abstract In apparatus for filling a container suitable for storage with radioactive solid wastes arising from atomic power plants or the like, a plasma arc is irradiated toward a portion of the wastes to melt the portion of the wastes; portions of the wastes are successively moved so as to be subjected to irradiation of the plasma arc to continuously melt the wastes; and the melts obtained by melting the wastes are permitted to flow down toward the bottom of the container.
Inventors
- 👤 Toshio Adachi
- 👤 Susumu Hiratake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:17
CPC Classifications
G; G21; G21F; G21F9/00; G21F9/28; G21F9/34; G21F9/36; G21F5/00; G21F5/06; G21F5/14; H; H05; H05H; H05H1/00; H05H1/24; H05H1/26; Y; Y10; Y10S; Y10S266/00; Y10S266/90; Y10S266/901
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
195 words
An apparatus, for filling a container with radioactive waste, comprising: (i) a furnace body having a top wall with an opening therein and a side wall with an opening therein at an upper part thereof, said body being open at its lower part, (ii) a lower cover adapted, when in a raised position, to close said open lower part of the body, (iii) a container on said lower cover which becomes positioned in said body when said cover is in its raised position, (iv) means for raising and lowering said lower cover, (v) a bucket movable through said side wall opening between a first position in which it is outside said side wall of the furnace body, and a second position in which it is located above said container in said body, (iv) plasma torch means movable up and down through said top wall opening between a raised position in which said torch means are raised in said furnace body so that a lower end thereof becomes positioned above the level of said bucket, and a lowered position in which said lower end extends into said container when said container is positioned in said body.
Claim 2
Independent Claim
195 words
An apparatus, for filling a container with radioactive waste, comprising: (i) a furnace body having a top wall with an opening therein and a side wall with an opening therein at an upper part thereof, said body being open at its lower part, (ii) a lower cover adapted, when in a raised position, to close said open lower part of the body, (iii) a container on said lower cover which becomes positioned in said body when said cover is in its raised position, (iv) means for raising and lowering said lower cover, (v) a bucket movable through said side wall opening between a first position in which it is outside said side wall of the furnace body, and a second position in which it is located above said container in said body, (iv) plasma torch means movable up and down through said top wall opening between a raised position in which said torch means are raised in said furnace body so that a lower end thereof becomes positioned above the level of said bucket, and a lowered position in which said lower end extends into said container when said container is positioned in said body.
Claim 3
Dependent Claim
19 words
An apparatus, as claimed in claim 1, comprising door means positioned for closing and opening said side wall opening.
Claim 4
Dependent Claim
24 words
An apparatus, as claimed in claim 1, comprising means in said furnace body for directing cooling gas onto said container in said furnace body.
Claim 5
Dependent Claim
14 words
An apparatus, as claimed in claim 1, wherein said container is lined with graphite.
Claim 6
Dependent Claim
32 words
An apparatus, as claimed in claim 1, wherein said container comprises an iron canister, a layer of concrete lining said canister, and a layer of graphite within said concrete forming a crucible.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |