US4268755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel assembly shipping cask
Assignee: Kraftwerk Union AG
•
Filing: 1979-07-09
•
Granted: 1981-05-19
•
Expires: 1999-07-09
Abstract
Abstract In combination, a fuel assembly transfer cask having lifting devices and a shock-absorbing piston member associated with the underside of the transfer cask, the piston member including two mutually spaced-apart metal plates, a multiplicity of hollow metal bodies stacked on top of one another therebetween and fastening elements for fastening the piston member to the lifting devices.
Inventors
- 👤 Robert Weber
- 👤 Stefan Ring
- 👤 Ulf Heeschen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:23
CPC Classifications
F; F16; F16F; F16F7/00; F16F7/12; F16F7/121; G; G21; G21F; G21F5/00; G21F5/06; G21F5/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
57 words
In combination, a fuel assembly transfer cask having lifting devices and a shock-absorbing piston member associated with the underside of the transfer cask, the piston member comprising two mutually spaced-apart metal plates, a multiplicity of hollow metal bodies stacked on top of one another therebetween and fastening elements for fastening the piston member to the lifting devices.
Claim 2
Dependent Claim
57 words
In combination, a fuel assembly transfer cask having lifting devices and a shock-absorbing piston member associated with the underside of the transfer cask, the piston member comprising two mutually spaced-apart metal plates, a multiplicity of hollow metal bodies stacked on top of one another therebetween and fastening elements for fastening the piston member to the lifting devices.
Claim 3
Dependent Claim
17 words
The combination according to claim 1 wherein the piston member has guide strips at the periphery thereof.
Claim 4
Dependent Claim
15 words
The combination according to claim 2 wherein said guide strips are formed of plastic material.
Claim 5
Dependent Claim
33 words
The combination according to claim 1 wherein said hollow bodies are enclosed in a sheathing connecting said metal plates, said sheathing being formed with corrugations extending parallel to the planes of said plates.
Claim 6
Dependent Claim
33 words
The combination according to claim 1 wherein said hollow bodies are enclosed in a sheathing connecting said metal plates, said sheathing being formed with beads extending parallel to the planes of said plates.
Claim 7
Dependent Claim
35 words
The combination according to claim 1 wherein the piston member has a side thereof facing toward the transfer cask, and including projections located at said piston-member side for spacing said side from the transfer cask.
Claim 8
Dependent Claim
22 words
The combination according to claim 6 wherein said projections are formed of spacer strips disposed on said side of the piston member.
Claim 9
Dependent Claim
22 words
The combination according to claim 1 wherein said fastening elements are connected with play to said lifting devices of the transfer cask.
References Cited (Backward Citations)
GB191118213A
Cited
US3309283A
Cited
US3719255A
Cited
US3675746A
Cited
US3917953A
Cited
US4088897A
Cited
DE2744596A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-18 | 1984-11-17 | 1985-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-18 | 1988-11-17 | 1989-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-18 | 1992-11-17 | 1993-05-19 | $7700.00 | Window Closed / Lapsed |