Patent US5281948A successfully refreshed from Google Patents.
Patent US3845178A successfully refreshed from Google Patents.
US3845178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of fuel for nuclear reactors utilizing a polymerisable resin
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1971-11-01
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Granted: 1974-10-29
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Expires: 1991-11-01
Abstract
Abstract 1. A METHOD OF MAKING PRESSED COMPACTS OF NUCLEAR FUEL RESIDING IN PREPARING A MIXTURE INCLUDNG GISSION PRODUCT RETANING FUEL PARTICLES, A SOLID POLYMERISABLE RESIN AND A GRANULAR MATRIX MATERIAL, LOADING A DIE CAVITY WITH THE MIXTURE, HEATING THE DIE AND CONTENTS OF THE CAVITY SO THAT A UNIFORM TEMPERATURE EXISTS THROUGHOUT THE CONTENTS, BEING A TEMPERATURE AT WHICH THE RESIN MELTS BUT DOES NOT SUFFERE A CHANGE IN CHEMICAL STRUCTURE AND TOGETHER WITH THE MATRIX MATERIAL EXHIBITS A UNIFORM PLASTICITY, AND PRESSING THE CONTENTS OF THE CAVITY IN THE DIE WHILST AT THAT EVEN TEMPERATURE CONDITION SO THAT THE DIE CONTENTS ARE COMPACTED THROUGHOUT THE DIE CAVITY.
Inventors
- 👤 M Price
- 👤 M Hrovat
- 👤 J Gough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:05
CPC Classifications
G; G21; G21C; G21C21/00; G21C21/02; G21C3/00; G21C3/42; G21C3/58; G21C3/62; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A METHOD OF MAKING PRESSED COMPACTS OF NUCLEAR FUEL RESIDING IN PREPARING A MIXTURE INCLUDNG GISSION PRODUCT RETANING FUEL PARTICLES, A SOLID POLYMERISABLE RESIN AND A GRANULAR MATRIX MATERIAL, LOADING A DIE CAVITY WITH THE MIXTURE, HEATING THE DIE AND CONTENTS OF THE CAVITY SO THAT A UNIFORM TEMPERATURE EXISTS THROUGHOUT THE CONTENTS, BEING A TEMPERATURE AT WHICH THE RESIN MELTS BUT DOES NOT SUFFERE A CHANGE IN CHEMICAL STRUCTURE AND TOGETHER WITH THE MATRIX MATERIAL EXHIBITS A UNIFORM PLASTICITY, AND PRESSING THE CONTENTS OF THE CAVITY IN THE DIE WHILST AT THAT EVEN TEMPERATURE CONDITION SO THAT THE DIE CONTENTS ARE COMPACTED THROUGHOUT THE DIE CAVITY.
Claim 2
Independent Claim
107 words
A METHOD OF MAKING PRESSED COMPACTS OF NUCLEAR FUEL RESIDING IN PREPARING A MIXTURE INCLUDNG GISSION PRODUCT RETANING FUEL PARTICLES, A SOLID POLYMERISABLE RESIN AND A GRANULAR MATRIX MATERIAL, LOADING A DIE CAVITY WITH THE MIXTURE, HEATING THE DIE AND CONTENTS OF THE CAVITY SO THAT A UNIFORM TEMPERATURE EXISTS THROUGHOUT THE CONTENTS, BEING A TEMPERATURE AT WHICH THE RESIN MELTS BUT DOES NOT SUFFERE A CHANGE IN CHEMICAL STRUCTURE AND TOGETHER WITH THE MATRIX MATERIAL EXHIBITS A UNIFORM PLASTICITY, AND PRESSING THE CONTENTS OF THE CAVITY IN THE DIE WHILST AT THAT EVEN TEMPERATURE CONDITION SO THAT THE DIE CONTENTS ARE COMPACTED THROUGHOUT THE DIE CAVITY.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |