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US 11,383,804 B2Granted
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.
Claims22
A shipyard, the shipyard comprising:
- a yard, the yard defining a yard level;
- a shiplift platform positioned adjacent the yard;
- a lifting system comprising:
- a chainwheel or winch 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, wherein the actuator is actuable to move the chainwheel or winch between at least two positions, the at least two positions including a first position wherein the chainwheel or winch is positioned at a first height and is coupled with the yard and a second position wherein the chainwheel or winch is positioned at a second height and is decoupled from the yard and is raised above the yard level, wherein the second height is higher than the first height;
- a jacking column;
- and
- a jacking beam, the jacking beam configured to couple with and between the chainwheel or winch and the jacking column to maintain the chainwheel or winch at the second height.
6 more elements
A shiplift, the shiplift comprising:
- a shiplift platform positioned adjacent a yard, the yard defining a yard level;
- a chainwheel or winch capable of being coupled with the shiplift platform;
- and
- a linear actuator, wherein a first end of the linear actuator is coupled with the yard and a second end of the linear actuator is coupled with the chainwheel or winch;
- wherein the linear actuator is actuable to move the chainwheel or winch between at least two positions, the at least two positions including a first position wherein the chainwheel or winch is positioned a first distance from the yard and a second position wherein the chainwheel or winch is positioned a second distance from the yard and is raised above the yard, wherein the second distance is greater than the first distance;
- a jacking column;
- and
- a jacking beam, the jacking beam configured to couple with and between the chainwheel or winch and the jacking column to maintain a position of the chainwheel or winch.
5 more elements
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.
3 more elements
A shipyard, the shipyard comprising:
- a yard, the yard defining a yard level;
- a shiplift platform positioned adjacent the yard;
- a chainwheel or winch;
- and
- a jack, the jack comprising an actuator;
- wherein the chainwheel or winch is decoupled from the shiplift platform, and wherein the actuator is actuable to raise the decoupled chainwheel or winch, from a first height to a second height, relative to the yard level;
- a jacking column;
- and
- a jacking beam, the jacking beam configured to couple with and between the chainwheel or winch and the jacking column and configured to maintain the chainwheel or winch at the second height.
6 more elements
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;
- wherein the jack comprises a jacking column capable of being coupled with the yard;
- wherein, with the jacking column coupled with the yard, the hoist frame is capable of being coupled with the jacking column to maintain a position of the hoist frame relative to the jacking column;
- and wherein, with the jacking column coupled with the yard, the jack frame is capable of being coupled with the jacking column to maintain a position of the jack frame relative to the jacking column;
- and
- wherein the jack comprises jacking beams capable of coupling the hoist frame with the jacking column to maintain the position of the hoist relative to the jacking column and capable of coupling the jack frame with the jacking column to maintain the position of the jack frame relative to the jacking column.
8 more elements
A shiplift, the shiplift comprising:
- a shiplift platform;
- a hoist coupled with the shiplift platform;
- a jack coupled with the hoist, wherein the jack is actuable to raise the hoist from a first height to a second height;
- a jacking column;
- and
- a jacking beam, the jacking beam configured to couple with and between the hoist and the jacking column and to maintain the hoist at the second height.
3 more elements
Dependencies are inferred from the claim text.