Vacuum-actuated handling device
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United States of America Patent
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Feb 3, 2015
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N/A
app pub date -
Mar 13, 2012
filing date -
Mar 14, 2011
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Abstract
A vacuum—actuated handling device including, in the inner space (12) of a hollow body (11) with closed ends, a guide cylinder (13) defining an axial chamber (26) and, with the inner space, an annular compartment (25). In the chamber (26) a piston (14) movable between a rearward position adjacent to a first end and a forward position adjacent to a second end of said body (11) is accommodated. The piston is provided with an axially pierced rod (15), emerging from the second end of the body, carrying a gripping end sucker (27) and it is connected to a return spring (23) aiming to move the piston (14) to the rearward position. The piston (14) divides the chamber (26) in a first part of the chamber (a) adjacent to the first end and a second part of the chamber (b) on the side of said piston rod (15).
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