US4288997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system for shipping casks
Assignee: Kraftwerk Union AG
•
Filing: 1979-04-03
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Granted: 1981-09-15
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Expires: 1999-04-03
Abstract
Abstract Cooling system for containers for transporting heat-emitting parts from nuclear installations, including a closed loop connected to the container for carrying water and steam or water alone, the loop having disposed therein a heatable mixing condenser, a filter installation, a cooler, a pump, and valve-control means for controlling pressure and temperature in the loop.
Inventors
- 👤 Eckart Friesen
- 👤 Hans P. Thogersen
- 👤 Roland Kuhnel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:32
CPC Classifications
G; G21; G21F; G21F5/00; G21F5/06; G21F5/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
87 words
Cooling system having a container for transporting heat-emitting parts without temperature shock after removal from nuclear installations, comprising a closed loop for carrying water and steam or water alone, and means for connecting the container to said loop, said loop having disposed therein a heatable mixing condenser for regulating pressure and temperature in said loop, a filter installation for removing possible radioactive contamination from the water, a cooler for cooling water in said loop, a pump, and valve-control means for controlling pressure and temperature in said loop.
Claim 2
Dependent Claim
87 words
Cooling system having a container for transporting heat-emitting parts without temperature shock after removal from nuclear installations, comprising a closed loop for carrying water and steam or water alone, and means for connecting the container to said loop, said loop having disposed therein a heatable mixing condenser for regulating pressure and temperature in said loop, a filter installation for removing possible radioactive contamination from the water, a cooler for cooling water in said loop, a pump, and valve-control means for controlling pressure and temperature in said loop.
Claim 3
Dependent Claim
14 words
Cooling system according to claim 1, including joints connecting said loop to the container.
Claim 4
Dependent Claim
30 words
Cooling system according to claim 1, including an internal water spraying device disposed in said mixing condenser and means for supplying water to said spraying device from said closed loop.
Claim 5
Dependent Claim
40 words
Cooling system according to claim 1, including means for selectively directing the water and steam or water alone in a path through the container and part of said loop, and in another path exclusively through said loop bypassing the container.
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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) | 1984-09-14 | 1985-03-16 | 1985-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-14 | 1989-03-16 | 1989-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-14 | 1993-03-16 | 1993-09-15 | $7700.00 | Window Closed / Lapsed |