Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1974-09-20
1976-03-23
Sheridan, Robert G.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
187 67, 193 40, B65G 104, G21C 1932
Patent
active
039455092
ABSTRACT:
A heavy shielded nuclear fuel cask is lowered into and removed from a water filled spent fuel pool by providing a vertical guide tube in the pool, affixing to the bottom of the cask a base plate that approximates the transverse dimension of the guide tube, and lowering and elevating the cask and base plate assembly into and out of the pool by causing it to traverse within the guide tube. The guide tube and base plate coact to function as a dashpot, thereby cushioning and controlling the fall of the cask in the pool should it break loose while being lowered into or raised out of the pool. A specified approach path to the guide tube insures that the cask assembly will not fall into the pool, should it break loose on its approach to the guide tube.
REFERENCES:
patent: 229982 (1880-07-01), Ellithorpe
patent: 3819066 (1974-06-01), Jones
Haskell Boris
MPR Associates, Inc.
Sheridan Robert G.
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