Vacuum cup

Details Vacuum cup Vacuum cup

B - Operations, Transporting

65

G

B65G 47/91 (2006.01) B25B 11/00 (2006.01) B25J 15/06 (2006.01)

Patent

CA 2495011

A vacuum cup for a material handling system is adapted for engaging and picking up an object. The vacuum cup comprises a body portion; a flexible perimeter seal extending from the body portion and a perimeter seal engaging an object and substantially sealing to the object when the vacuum cup is engaged with the object. The vacuum cup is substantially retained against the object via a partial vacuum within a cavity defined between the body portion, the perimeter seal and the object. A relief port is defined through the body portion. The relief port has a sealing member for at least substantially closing the relief port when the vacuum cup engages the object a sufficient amount. The sealing member at least partially opens the relief port when the vacuum cup is moved a sufficient amount in a direction generally away from the object. The relief port at least partially relieves the partial vacuum when the relief port is at least partially opened.

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