Device for positioning objects within a sealed chamber

A device for positioning objects within a sealed chamber comprising:

• a tubular housing closed at one end thereof and open at another end thereof;
• means located at said open end for attaching said tubular housing to said sealed chamber;
• an outer tubular elongated body located in said tubular housing, said outer tubular elongated body being moveable axially inside said housing and being capable of rotating therein, said outer tubular elongated body having one end located near said closed end of said tubular housing, and a second end capable of protruding from said tubular housing through said open end thereof into said sealed chamber;
• an inner elongated body located inside said outer tubular elongated body, said inner elongated body having one end located near said closed end of said tubular housing and a second end located near said second end of said outer tubular elongated body;
• means for rotating said inner elongated body with respect to said outer tubular elongated body;
• means for imparting a translatory and a rotary motion to said outer tubular elongated body, said means for imparting a translatory and a rotary motion having a drive portion located outside said tubular housing and moveable axially along said tubular housing and angularly with respect thereto, and a driven portion located inside said tubular housing and rigidly connected to said outer tubular elongated body;
• means for moving said inner elongated body axially and angularly together with said outer tubular elongated body when said outer tubular elongated body is moved by said means for imparting a translatory and a rotary motion;
• object holding means for supporting an object at said second end of said inner elongated body, said means for rotating said inner elongated body with respect to said outer tubular elongated body comprising a rotating drive unit located outside said tubular housing and attached thereto through a sealing device, said rotating drive means being rigidly attached to said first end of said inner elongated body;
• said inner elongated body comprising a sleeve drivingly connected to said rotating drive unit at said first end of said inner elongated body, and a shaft telescopically inserted into said sleeve, said sleeve having slide means, which allow said shaft to slide inside said sleeve but which prevent said shaft from rotating relative to said sleeve.

A device for positioning objects within a sealed chamber comprising:

• a tubular housing closed at one end thereof and open at another end thereof;
• a sealed flange connection between said open end of said tubular housing and said sealed chamber;
• an outer tubular elongated body located in said tubular housing, said outer tubular elongated body being moveable axially inside said tubular housing and being capable of rotating therein, said outer tubular elongated body having one end located near said closed end of said tubular housing, and a second end capable of protruding from said tubular housing through said open end thereof into said sealed chamber;
• an inner elongated body located inside said outer tubular elongated body, said inner elongated body having one end located near said closed end of said tubular housing and a second end located near said second end of said outer tubular elongated body;
• a rotating drive unit located outside said tubular housing and having an output member coupled through a sealed connection with said first end of said inner elongated body;
• means for imparting a translatory and rotary motion to said outer tubular elongated body comprising an outer permanent magnet, which slides over the surface of said tubular housing and can rotate thereon, and an inner permanent magnet, which has a polarity opposite to that of said outer permanent magnet and which is rigidly attached to said first end of said outer tubular elongated body, said inner permanent magnet being installed inside said tubular housing with a large enough gap between the periphery of said inner magnet and the inner surface of said tubular housing to provide free movement of said inner magnet inside said tubular housing;
• means for moving said inner elongated body axially together with said outer tubular elongated body when said outer tubular elongated body is moved by said means for imparting translatory and rotary motion;
• object holding means for supporting an object at said second end of said inner elongated body, said means for rotating said inner elongated body with respect to said outer tubular elongated body comprising a rotating drive unit located outside said tubular housing and attached thereto through a sealing device, said rotating drive means being rigidly attached to said first end of said inner elongated body;
• said inner elongated body comprising a sleeve drivingly connected to said rotating drive unit at said first end of said inner elongated body, and a shaft telescopically inserted into said sleeve, said sleeve having slide means for allowing said shaft to slide inside said sleeve and preventing said shaft from rotating relative to said sleeve.