Flow deflector fob nuc ear fuel element assemblies
Abstract
Abstract 10. A NUCLEAR REACTOR FUEL ASSEMBLY COMPRISING A PLURALITY LONGITUDINALLY EXTENDING PARALLEL FUEL ELEMENTS ARRANGED IN SPACED ROWS FORMING LONGITUDINAL COOLANT FLOW CHANNELS THEREBETWEEN; A GRID FORMED FROM A PLURALITY OF CROSS-LACED INTERENGAGING STRAPS, EACH OF SAID STRAPS BEING LOCATED BETWEEN SAID SPACED ROWS OF FUEL ELEMENTS; AND A PLURALITY OF DEFLECTOR CONES LOCATED IN SAID FLOW CHANNELS BETWEEN SAID FUEL ELEMENTS, SAID CONES BEING ATTACHED TO SAID GRID AT THE INTERSECTIONS OF SAID STRAPS, SAID CONES EACH BEING GENERALLY PYRAMIDAL IN SHAPE HAVING AN APEX AND A GENERALLY SQUARE BASE AND FOUR DEFLECTING SIDEWALL SURFACES, EACH OF SAID SIDEWALL SURFACES BEING ORIENTED SO AS TO FACE THE ADJACENT FUEL ELEMENT AND EACH SIDEWALL SURFACE BEING CONCAVE WITH THE CENTER OF CURVATURE OF SAID CONCAVITY GENERALLY CORRESPONDING TO THE CENTER OF SAID ADJACENT FUEL ELEMENT WHEREBY AN INTERMITTENT ANNULAR SPACE IS FORMED BETWEEN EACH FUEL ELEMENT AND THE ADJACENT DEFLECTOR CONES, THE APEX OF SAID CONES BEING LOCATED UPSTREAM AND SAID BASE BEING LOCATED DOWNSTREAM WITH RESPECT TO THE DIRECTION OF SAID COOLANT FLOW.
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Bibliographic Details
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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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |