Patent ID: 9527703
Filing Date: 2016-12-27
CPC Classification: B66F,F15B

Claim Text:
1. A lifting device capable of being actuated by a flowable medium, with a main carrier which forms a first cavity, with a first lifting element which is arranged at least locally inside the first cavity and which is movable in two mutually opposed directions of movement (R 1 , R 2 ) with respect to the first cavity, with a first supply opening, in order to supply the flowable medium to the first cavity, wherein the first lifting element is moved in a first direction of movement (R 1 ) by a supply of the flowable medium into the first cavity, wherein the main carrier has a second cavity which is arranged in a manner fixed in terms of movement with respect to the first cavity, and a second lifting element which is arranged at least locally inside the second cavity and which is movable in the two mutually opposed directions of movement (R 1 , R 2 ) with respect to the second cavity, with a second supply opening in order to supply the flowable medium to the second cavity, wherein the second lifting element is moved in a second direction of movement (R 2 ) by a supply of the flowable medium into the first cavity.