US Patent 10041624 Linear lifting pillar

Embodiments relate to a lifting pillar having at least a first tube and at least a second tube that is axially movably arranged within the first tube. Further, the lifting pillar provides at least one sliding element arranged between the first tube and the second tube. The sliding element is in direct contact with the first tube and the second tuber and is axially movably arranged in relation to the first tube and the second tube.