Vacuum lifting arrangement and method for providing a such
AssigneeTawi AB
InventorJohn Carlsson
Life of this patent
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Abstract
The disclosure relates to a vacuum lifting arrangement comprising a vacuum pump, a valve arrangement, a support structure, and a flexible lifting tube comprising a suction foot. The vacuum pump is connected to the valve arrangement and to the flexible lifting tube. The valve arrangement is arranged to extend and retract the flexible lifting tube. The valve arrangement is arranged separate from the suction foot, between the vacuum pump and the suction foot. The disclosure also relates to a method of providing a vacuum lifting arrangement.
Claims8
A vacuum lifting apparatus comprising:
- a vacuum pump;
- a valve arrangement;
- a support structure;
- and
- a flexible lifting tube comprising a suction foot, wherein the vacuum pump is connected to the valve arrangement and to the flexible lifting tube, wherein the valve arrangement is configured to extend and retract the flexible lifting tube, the valve arrangement is configured to separate from the suction foot, between the vacuum pump and the suction foot, wherein the suction foot comprises a movable valve plate configured to close against a seal during operation of the vacuum pump when no load is attached to the suction foot.
A method for providing a vacuum lifting arrangement, wherein the method comprises:
- arranging a valve arrangement to be connected to a vacuum pump and to a flexible lifting tube comprising a suction foot, wherein the valve arrangement is arranged separate from the suction foot, between the vacuum pump and the suction foot;
- and
- providing a movable valve plate within the suction foot arranged to close against a seal during operation of the vacuum pump when no load is attached to the suction foot.
Dependencies are inferred from the claim text.