Patent US4587704A successfully refreshed from Google Patents.
US4587704A
Expired / Lapsed
US
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Method of mounting a continuous loop spring on a nuclear fuel spacer
Assignee: General Electric Co
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Filing: 1984-05-07
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Granted: 1986-05-13
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Expires: 2004-05-07
Abstract
Abstract In a fuel assembly for a nuclear reactor a fuel element spacer formed of an array of laterally positioned cojoined tubular ferrules each providing a passage for one of the fuel elements, the elements being laterally supported in the ferrules between slender spring members and laterally oriented rigid stops.
Inventors
- 👤 Bruce Matzner
- 👤 Victor M. Horn
- 👤 Michael V. Curulla
- 👤 John F. Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:28
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/30; G21C3/32; G21C3/34; G21C3/344; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49947
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A method for mounting a continuous loop spring on the adjacent walls of a pair of ferrules of a ferrule type spacer for the elongated elements of a nuclear reactor fuel bundle, comprising the steps of: (a) forming a C-shaped cutout in the wall of one of said ferrules to provide a tab for receiving said spring; (b) forming a C-shaped cutout in the wall of the other of said pair of ferrules to provide a tab facing opposite to the tab of said one of said ferrules; (c) inserting the tabs of said pair of ferrules through said spring and adjusting the position of said ferrules so that the tabs thereof extend in opposite directions through said spring and are in overlapping position; and (d) securing the ferrules of said pair together to maintain said position.
Claim 2
Independent Claim
137 words
A method for mounting a continuous loop spring on the adjacent walls of a pair of ferrules of a ferrule type spacer for the elongated elements of a nuclear reactor fuel bundle, comprising the steps of: (a) forming a C-shaped cutout in the wall of one of said ferrules to provide a tab for receiving said spring; (b) forming a C-shaped cutout in the wall of the other of said pair of ferrules to provide a tab facing opposite to the tab of said one of said ferrules; (c) inserting the tabs of said pair of ferrules through said spring and adjusting the position of said ferrules so that the tabs thereof extend in opposite directions through said spring and are in overlapping position; and (d) securing the ferrules of said pair together to maintain said position.
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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) | 1989-05-12 | 1989-11-11 | 1990-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-12 | 1993-11-11 | 1994-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-12 | 1997-11-11 | 1998-05-13 | $7700.00 | Window Closed / Lapsed |