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US 2006/0188329 A1Published application
Method and apparatus for lifting a load
AssigneePerimeter Defense Technologies, LP
InventorJoe Cobb
Life of this patent
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Abstract
A load lifting apparatus comprises a double-acting fluid controlled actuator and a volume bottle coupled to the double acting fluid controlled actuator in a closed loop.
Claims50
A load lifting apparatus comprising:
- a double-acting fluid controlled actuator;
- and
- a volume bottle coupled to the double-acting fluid controlled actuator by a fluid transmission coupling, whereby the double-acting fluid controlled actuator, the volume bottle, and the fluid transmission coupling form a closed actuation loop.
A bollard system comprising:
- a foundation positioned below a surface;
- an anchor housing mounted to the foundation;
- and
- a bollard apparatus moveably coupled to the anchor housing, the bollard apparatus comprising:
- a double-acting fluid controlled actuator operable to extend the bollard apparatus above the surface and retract the bollard apparatus below the surface;
- and
- a volume bottle coupled to the double-acting fluid controlled actuator by a fluid transmission coupling, whereby the double-acting fluid controlled actuator, the volume bottle, and the fluid transmission coupling form a closed actuation loop.
4 more elements
A load lifting system comprising:
- a double-acting fluid controlled actuator;
- and
- means coupled to the double-acting fluid controlled actuator for substantially reducing the effects of progressivity in the system, the means for substantially reducing the effects of progressivity in the system and the double-acting fluid controlled actuator forming a closed actuation loop.
A method for lifting a load comprising:
- providing a double-acting fluid controlled actuator;
- coupling a volume bottle to the double-acting fluid controlled actuator and forming a closed actuation loop;
- providing a fluid in the closed actuation loop;
- positioning a load on the double-acting fluid controlled actuator;
- pressurizing the fluid in the closed actuation loop;
- and
- lifting the load.
4 more elements
A method for extending and retracting a bollard comprising:
- positioning a foundation below a surface;
- mounting an anchor housing in the foundation;
- moveably coupling a bollard apparatus to the anchor housing;
- coupling a double-acting fluid controlled actuator to the bollard apparatus;
- coupling a volume bottle to the double-acting fluid controlled actuator to form a closed actuation loop;
- providing a fluid in the closed actuation loop;
- pressurizing the fluid in the closed actuation loop;
- and
- lifting the bollard apparatus above the surface.
6 more elements
A load lifting apparatus comprising:
- a double-acting piston-type cylinder comprising an extending chamber and a retracting chamber;
- a fluid transmission coupling comprising a first end coupled to the extending chamber and a second end coupled to the retracting chamber;
- a volume bottle coupled to the double-acting piston-type cylinder between the first end and the second end of the fluid transmission coupling, the volume bottle operable to substantially reduce the effects of progressivity in the double-acting piston-type cylinder, whereby the double-acting piston-type cylinder, the volume bottle, and the fluid transmission coupling form a closed actuation loop;
- a volume of pressurized inert gas in the closed actuation loop;
- a pressurizing valve coupled to the closed actuation loop, the pressurizing valve operable to allow the volume of pressurized inert gas in the closed actuation loop to be pressurized;
- and
- a locking member coupled to the closed actuation loop, the locking member operable to allow the double-acting piston-type cylinder to be actuated by allowing the pressurized inert gas to be transmitted through the fluid transmission coupling and operable to prevent the double-acting piston-type cylinder from being actuated by preventing the pressurized inert gas from being transmitted through the fluid transmission coupling.
4 more elements
A load lifting apparatus comprising:
- a double-acting piston-type cylinder comprising an extending chamber and a retracting chamber;
- a fluid transmission coupling comprising a first end coupled to the extending chamber and a second end coupled to the retracting chamber;
- a hydraulic accumulator coupled to the double-acting piston-type cylinder between the first end and the second end of the fluid transmission coupling, the hydraulic accumulator operable to substantially reduce the effects of progressivity in the double-acting piston-type cylinder, whereby the double-acting fluid controlled actuator, the hydraulic accumulator, and the fluid transmission coupling form a closed actuation loop;
- a volume of hydraulic fluid in the closed actuation loop;
- a pressurizing valve coupled to the closed actuation loop, the pressurizing valve operable to allow the volume of hydraulic fluid in the closed actuation loop to be pressurized;
- a locking member coupled to the closed actuation loop, the locking member operable to allow the double-acting piston-type cylinder to be actuated by allowing the hydraulic fluid to be transmitted through the fluid transmission coupling and operable to prevent the double-acting piston-type cylinder from being actuated by preventing the hydraulic fluid from being transmitted through the fluid transmission coupling;
- and
- a pump coupled to the closed actuation loop and operable to actuate the double-acting piston-type cylinder by moving the hydraulic fluid through the fluid transmission coupling in a plurality of directions.
5 more elements
A bollard system comprising:
- a foundation positioned below a surface;
- an anchor housing mounted to the foundation;
- and
- a bollard apparatus moveably coupled to the anchor housing, the bollard apparatus comprising:
- a double-acting piston-type cylinder comprising an extending chamber and a retracting chamber, the double-acting piston type cylinder coupled to the bollard apparatus and operable to extend the bollard apparatus above the surface and retract the bollard apparatus below the surface;
- a fluid transmission coupling comprising a first end coupled to the extending chamber and a second end coupled to the retracting chamber;
- a volume bottle coupled to the double-acting fluid controlled actuator between the first end and the second end of the fluid transmission coupling, the volume bottle operable to substantially reduce the effects of progressivity in the double-acting piston-type cylinder, whereby the double-acting fluid controlled actuator, the volume bottle, and the fluid transmission coupling form a closed actuation loop;
- a volume of pressurized inert gas in the closed actuation loop;
- a pressurizing valve coupled to the closed actuation loop, the pressurizing valve operable to allow the volume of pressurized inert gas in the closed actuation loop to be pressurized;
- and
- a locking member coupled to the closed actuation loop, the locking member operable to allow the double-acting piston-type cylinder to be actuated by allowing the pressurized inert gas to be transmitted through the fluid transmission coupling and operable to prevent the double-acting piston-type cylinder from being actuated by preventing the pressurized inert gas from being transmitted through the fluid transmission coupling.
8 more elements
A bollard system comprising:
- a foundation positioned below a surface;
- an anchor housing mounted to the foundation;
- and
- a bollard apparatus moveably coupled to the anchor housing, the bollard apparatus comprising:
- a double-acting piston-type cylinder comprising an extending chamber and a retracting chamber, the double-acting piston type cylinder coupled to the bollard apparatus and operable to extend the bollard apparatus above the surface and retract the bollard apparatus below the surface;
- a fluid transmission coupling comprising a first end coupled to the extending chamber and a second end coupled to the retracting chamber;
- a hydraulic accumulator coupled to the double-acting piston-type cylinder between the first end and the second end of the fluid transmission coupling, the volume bottle operable to substantially reduce the effects of progressivity in the double-acting piston-type cylinder, whereby the double-acting piston-type cylinder, the hydraulic accumulator, and the fluid transmission coupling form a closed actuation loop;
- a volume of hydraulic fluid in the closed actuation loop;
- a pressurizing valve coupled to the closed actuation loop, the pressurizing valve operable to allow the volume of hydraulic fluid in the closed actuation loop to be pressurized;
- a locking member coupled to the closed actuation loop, the locking member operable to allow the double-acting piston-type cylinder to be actuated by allowing the hydraulic fluid to be transmitted through the fluid transmission coupling and operable to prevent the double-acting piston-type cylinder from being actuated by preventing the hydraulic fluid from being transmitted through the fluid transmission coupling;
- and
- a pump coupled to the closed actuation loop and operable to actuate the double-acting piston-type cylinder by moving the hydraulic fluid through the fluid transmission coupling in a plurality of directions.
9 more elements
A method for lifting a load comprising:
- providing a double-acting piston-type cylinder;
- coupling a volume bottle to the double-acting piston-type cylinder in a closed actuation loop;
- providing a fluid in the closed actuation loop;
- positioning a load on the double-acting piston-type cylinder;
- pressurizing the fluid in the closed actuation loop to counter-balance the weight of the load;
- lifting the load;
- locking the double-acting piston-type cylinder in any position along the range of motion of the double-acting piston-type cylinder;
- unlocking the double-acting piston-type cylinder;
- lowering the load;
- and
- reducing the effects of progressivity with the volume bottle.
8 more elements
A method for extending and retracting a bollard comprising:
- positioning a foundation below a surface;
- mounting an anchor housing in the foundation;
- moveably coupling a bollard apparatus to the anchor housing;
- coupling a double-acting piston-type cylinder to the bollard apparatus;
- coupling a volume bottle to the double-acting piston-type cylinder in a closed actuation loop;
- providing a fluid in the closed actuation loop;
- pressurizing the fluid in the closed actuation loop to counter-balance the weight of the load;
- lifting the bollard apparatus above the surface;
- locking the bollard apparatus in any position along the range of motion of the bollard apparatus;
- unlocking the bollard apparatus;
- lowering the bollard apparatus;
- and
- reducing the effects of progressivity with the volume bottle.
10 more elements
Dependencies are inferred from the claim text.