Shiplift platform elevation
AssigneeBardex Corporation
InventorsRobert Taylor, Daniel Lyons
Life of this patent
Estimating the term…
Abstract
A shipyard including a shiplift platform that is capable of being raised above yard level for maintenance is provided. Hoists are coupled with the shiplift platform, and jacks are coupled with the hoists. The jacks are capable of lifting the hoists relative to the yard, and are capable of lifting the shiplift platform above the yard level.
Claims40
A shipyard, the shipyard comprising:
- a yard, the yard defining a yard level;
- a shiplift platform positioned adjacent the yard;
- a lifting system coupled with the yard, the lifting system comprising:
- a hoist coupled with a hoist frame, wherein the hoist is capable of coupling with the shiplift platform and raising and lowering the shiplift platform relative to the yard level;
- and
- a jack, the jack comprising an actuator coupled with a jack frame and engaged with the hoist frame, wherein the actuator is actuable to raise the hoist above the yard level and is actuable to raise the shiplift platform above the yard level.
A shiplift, the shiplift comprising:
- a shiplift platform;
- a lifting system comprising:
- a hoist coupled with a hoist frame, wherein the hoist is capable of coupling with the shiplift platform and raising and lowering the shiplift platform;
- a jack, the jack comprising an actuator coupled with a jack frame and engaged with the hoist frame, wherein the actuator is actuable to raise the hoist and is actuable to raise the shiplift platform.
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A shiplift jack, the jack comprising:
- a hoist coupled with a hoist frame;
- a jack, the jack comprising an actuator coupled with a jack frame and engaged with the hoist frame.
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A method of lifting a shiplift platform above a yard level of a shipyard, the method comprising:
- jacking-up a hoist, wherein the hoist is positioned adjacent the shiplift platform at the shipyard, wherein, during the jacking-up of the hoist, the hoist is decoupled from the shiplift platform, and wherein the jacking-up of the hoist comprises raising the hoist, relative to the yard level, from a first hoist height to a second hoist height;
- securing the hoist at the second hoist height;
- coupling the hoist, at the second hoist height, with the shiplift platform;
- with the hoist at the second hoist height and coupled with the shiplift platform, jacking-up the shiplift platform by raising the shiplift platform toward the hoist, from a first platform height to a second platform height;
- and
- securing the shiplift platform at the second platform height.
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Dependencies are inferred from the claim text.