Device for holding tube shaped objects
OwnerLeif Perssoninventor
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Abstract
A device for holding tube-shaped objects which objects are placed on or off a casing having a fixed portion, a slideable portion, and expandible members connecting said casing fixed and slideable portions, a piston inside said casing connected to said slideable portion and valves for controlling the supply of a pressure medium to said piston through the movement of the object on said casing so that said object can be held on said casing or readily removed therefrom by a longitudinal movement of said object.
Claims23
Device for holding tube-shaped objects comprising a cylinder, a piston slideably mounted in said cylinder, a sleeve shaped-casing surrounding said cylinder, said casing having a fixed portion and a portion slideably mounted on said cylinder, expandable means connecting said casing portions, means connecting said piston to said casing slideable portion, passageways for connecting a pressure medium to at least one side of said piston, sensor means capable of sensing longitudinally directed forces on the object and valve means being connected to said sensor means and capable of controlling the supply of pressure medium to said piston in dependence to the direction of said force acting on the object.
Dependencies are inferred from the claim text.