US3629062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer machine for nuclear reactor
Assignee: United States Atomic Energy Commission
•
Filing: 1969-05-12
•
Granted: 1971-12-21
•
Expires: 1989-05-12
Abstract
Abstract A fuel transfer machine for a liquid metal cooled nuclear reactor in which a retractable guide tube and telescoping lifting arm are utilized to reach down into the reactor to lift out a transfer pot containing a fuel assembly immersed in liquid metal. The machine has an independent cooling system consisting of outer fins and a closed coolant system with an immersed heat exchanger. This cooling system is intended to remove heat generated by radioactive decay in the fuel assembly during its time in the transfer machine.
Inventors
- 👤 Herbert O Muenchow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:18
CPC Classifications
G; G21; G21C; G21C15/00; G21C15/02; G21C15/12; G21C19/00; G21C19/02; G21C19/16; G21C19/20; G21C19/22; G21C19/24; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
The transfer machine of claim 1 in which said seal valve means contains a retractable seal for closing off the bottom opening of said seal valve means when said guide tube means and telescoping shaft means are retracted, thereby permitting movement of said transfer machine to another location.
Claim 2
Dependent Claim
59 words
The transfer machine of claim 2 in which said circulating means includes a pump mounted on said tubular barrel having an inlet pipe extending into and down said tubular barrel terminating above the bottom of said guide tube means, said inlet pipe slipping into said pot and communicating with the liquid metal contained therein as the pot is lifted.
References Cited (Backward Citations)
US2981422A
Cited
US3232840A
Cited
FR1375675A
Cited
US3282335A
Cited
US3483380A
Cited
US3383286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |