US3255090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel pin spacers
Assignee: Babcock and Wilcox Co
•
Filing: 1963-08-23
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Granted: 1964-07-10
•
Expires: 1983-08-23
Abstract
No abstract record available.
Inventors
- 👤 Raymond M Leirvik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:30
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/30; G21C3/32; G21C3/34; G21C3/344; G21C3/348; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A SPACER ARRANGEMENT FOR A FUEL ELEMENT COMPRISING: (A) A PLURALITY OF FUEL COMPONENTS ARRANGED IN A REGULAR ARRAY, (B) A MULTISIDED TUBE SECTION CONCENTRICALLY DISPOSED ABOUT EACH OF SAID FUEL COMPONENTS, (1) SAID SECTION ARRANGED IN SIDE-BY-SIDE RELATIONSHIP AND JOINED TOGETHER FORMING A SPACER GRID, (2) EACH OF THE SIDES OF SAID SECTIONS HAVING A FIRST PORTION INDENTED INWARDLY TOWARD BUT SPACED FROM SAID COMPONENTS, (3) EACH OF THE FIRST PORTIONS OF SAID SIDES HAVING A SECOND PORTION OF RELATIVELY SMALL AREA COMPARED WITH THAT OF THE FIRST PORTION INDENTED INWARDLY INTO CONTACTING RELATIONSHIP WITH SAID COMPONENTS WHEREBY THE DOUBLE INDENTATIONS PROVIDE RESILIENT CONTRACTING SURFACES WHICH HOLD SAID COMPONENTS IN POSITION LATERALLY, AND (4) THE SIDES OF SAID TUBE SECTIONS HAVING SLOTS FORMED THEREIN FOR IMPROVING THE RESILIENT ACTION OF THE INDENTED FIRST AND SECOND PORTIONS.
Claim 2
Dependent Claim
137 words
A SPACER ARRANGEMENT FOR A FUEL ELEMENT COMPRISING: (A) A PLURALITY OF FUEL COMPONENTS ARRANGED IN A REGULAR ARRAY, (B) A MULTISIDED TUBE SECTION CONCENTRICALLY DISPOSED ABOUT EACH OF SAID FUEL COMPONENTS, (1) SAID SECTION ARRANGED IN SIDE-BY-SIDE RELATIONSHIP AND JOINED TOGETHER FORMING A SPACER GRID, (2) EACH OF THE SIDES OF SAID SECTIONS HAVING A FIRST PORTION INDENTED INWARDLY TOWARD BUT SPACED FROM SAID COMPONENTS, (3) EACH OF THE FIRST PORTIONS OF SAID SIDES HAVING A SECOND PORTION OF RELATIVELY SMALL AREA COMPARED WITH THAT OF THE FIRST PORTION INDENTED INWARDLY INTO CONTACTING RELATIONSHIP WITH SAID COMPONENTS WHEREBY THE DOUBLE INDENTATIONS PROVIDE RESILIENT CONTRACTING SURFACES WHICH HOLD SAID COMPONENTS IN POSITION LATERALLY, AND (4) THE SIDES OF SAID TUBE SECTIONS HAVING SLOTS FORMED THEREIN FOR IMPROVING THE RESILIENT ACTION OF THE INDENTED FIRST AND SECOND PORTIONS.
References Cited (Backward Citations)
US1343002A
Cited
GB365078A
Cited
US3068163A
Cited
DE1093500B
Cited
DE1087285B
Cited
FR1259772A
Cited
GB883030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-10 | 1968-01-09 | 1968-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-10 | 1972-01-09 | 1972-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-10 | 1976-01-09 | 1976-07-10 | $7700.00 | Window Closed / Lapsed |