Material or article handling – Opposed shelf-type elevator and transporter – Load bridging vehicle
Patent
1996-05-07
1998-11-24
Keenan, James W.
Material or article handling
Opposed shelf-type elevator and transporter
Load bridging vehicle
414460, 414495, B60P 300
Patent
active
058398740
ABSTRACT:
A transporter for raising, transporting and positioning ventilated nuclear waste storage casks includes a U-shaped platform that moves on a pair of independently controllable crawlers. A pair of lower lift beams, dimensioned to extend through the air channels of the cask, are slung below the platform. The rear ends of the lower lift beams can be raised and lowered by means of hydraulic cylinders carried on the platform. The forward ends of the lower lift beams can be raised and lowered by an upper lift beam that extends across the forward end of the platform between two vertically extendable columns. After the forward ends of the lower lift beams are inserted through the cask air channels, they are coupled to the upper lift beam by means of two lift pendants. A restraining strap encircles the cask and is tensioned by means of a hydraulic cylinder in order to keep the cask from swinging relative to the platform.
REFERENCES:
patent: 3381833 (1968-05-01), Gordan
patent: 3494492 (1970-02-01), Thiermann
patent: 3750811 (1973-08-01), Anderson et al.
patent: 4275982 (1981-06-01), Fisco
patent: 4295777 (1981-10-01), Bell et al.
patent: 4372725 (1983-02-01), Moose et al.
patent: 4712966 (1987-12-01), Gross
patent: 4820110 (1989-04-01), Efird
patent: 5018930 (1991-05-01), Hardin et al.
J & R Engineering Co.
Keenan James W.
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