Patent US3087884A successfully refreshed from Google Patents.
US3087884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for shutting down nuclear reactors
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1959-07-01
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Granted: 1963-04-30
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Expires: 1979-07-01
Abstract
No abstract record available.
Inventors
- 👤 Long Everett
- 👤 Greenhalgh Frank Geoffrey
- 👤 Hack Laurence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:16
CPC Classifications
G; G21; G21C; G21C9/00; G21C9/02; G21C9/027; G21C7/00; G21C7/06; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A SHUT-DOWN APPARATUS FOR A NECLEAR REACTOR COMPRISING A MAGAZINE CONTAINING A PLURALITY OF NEUTRON ABSORBING BALLS, A TUBE MEMBER FOR INSERTION IN A CORE CHANNEL, THE TUBE MEMBER HAVING A FEED ORIFICES IN THE WALL THEREOF SPACED FROM ONE END OF THE TUBE MEMBER, MEANS DEFINING A FEED PIPE CONNECTING A MAGAZINE WITH THE FEED ORIFICE, MEANS FOR APPLYING A MAGNETIC FIELD ACROSS THHE FEED PIPE TO RESTRAIN FLOW OF THE NEUTRON ABSORBING BALLS, THERETHROUGH, AN INNER TUBE MEMBER SLIDABLY DISPOSED IN THE TUBE MEMBER FOR RECEIVING THE NEUTRON ABSORBING BALLS, CLOSURE MEANS ON ONE END PORTION OF THE INNER TUBE MEMBER FOR CLOSING THE OPENING OF THE TUBE END, SAID CLOSURE MEANS BEING ENGAGEABLE WITH THE TUBE MEMBER TO CLOSE THE INNER TUBE END OPENING, AND MEANS FOR DE-ENERGIZING THE RESTRAINING MAGNETIC FIELD WHEN BOTH END PORTIONS OF
Claim 2
Dependent Claim
140 words
A SHUT-DOWN APPARATUS FOR A NECLEAR REACTOR COMPRISING A MAGAZINE CONTAINING A PLURALITY OF NEUTRON ABSORBING BALLS, A TUBE MEMBER FOR INSERTION IN A CORE CHANNEL, THE TUBE MEMBER HAVING A FEED ORIFICES IN THE WALL THEREOF SPACED FROM ONE END OF THE TUBE MEMBER, MEANS DEFINING A FEED PIPE CONNECTING A MAGAZINE WITH THE FEED ORIFICE, MEANS FOR APPLYING A MAGNETIC FIELD ACROSS THHE FEED PIPE TO RESTRAIN FLOW OF THE NEUTRON ABSORBING BALLS, THERETHROUGH, AN INNER TUBE MEMBER SLIDABLY DISPOSED IN THE TUBE MEMBER FOR RECEIVING THE NEUTRON ABSORBING BALLS, CLOSURE MEANS ON ONE END PORTION OF THE INNER TUBE MEMBER FOR CLOSING THE OPENING OF THE TUBE END, SAID CLOSURE MEANS BEING ENGAGEABLE WITH THE TUBE MEMBER TO CLOSE THE INNER TUBE END OPENING, AND MEANS FOR DE-ENERGIZING THE RESTRAINING MAGNETIC FIELD WHEN BOTH END PORTIONS OF
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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) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |