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US 2023/0145996 A1Published application
Methods and devices for lifting building construction cranes
AssigneeEllisDon Corporation
InventorsStephen Lamont King, Philip Allan Jones
Life of this patent
Estimating the term…
Abstract
A device includes a climbing frame configured for connection to a support. The device also includes a hydraulic piston connected, at least indirectly, to the climbing frame. The hydraulic piston is oriented to urge, under a tension load, a mast of a crane upwardly against a force of gravity.
Claims20
A device comprising:
- a climbing frame configured for connection to a support;
- and
- a hydraulic piston connected, at least indirectly, to the climbing frame, the hydraulic piston oriented to urge, under a tension load, a mast of a crane upwardly against a force of gravity.
A device, comprising:
- a support comprising a first portion of a mast of a crane, wherein the first portion of the mast of the crane is anchored to an anchor point and wherein a second portion of the mast of the crane is unanchored to the first portion;
- a climbing frame connected to the second portion of the mast and slidable along the first portion of the mast;
- a hydraulic piston connected to the first portion of the mast and to the climbing frame, wherein the hydraulic piston is oriented to pull the climbing frame under a tension load and further oriented to lift the second portion of the mast as the climbing frame is pulled by the hydraulic piston.
A system comprising:
- a lower grillage configured to slide along internal walls, beams, columns, or floors of a building;
- a mast of a crane connected to the lower grillage;
- a climbing frame configured for connection to the internal walls, beams, columns, or floors of the building, the climbing frame disposed above the lower grillage relative to a direction of gravity;
- a hydraulic piston connecting the lower grillage and the climbing frame, the hydraulic piston oriented to urge the lower grillage towards the climbing frame under a tension load;
- and
- an upper grillage configured to slide along the internal walls, beams, columns, or floors of the building, the upper grillage connected to the mast of the crane above the climbing frame relative to the gravity.
3 more elements
A method of lifting a crane, the method comprising:
- anchoring a climbing frame to a support,
- wherein the climbing frame is connected to a hydraulic piston that is also connected to a lower grillage disposed under the climbing frame relative to a direction of gravity, and
- wherein the lower grillage is also connected to a mast of the crane;
- and
- pulling, using the hydraulic piston under a tension load, the lower grillage towards the climbing frame.
2 more elements
Dependencies are inferred from the claim text.