Patent ID: 8893455
Filing Date: 2014-11-25
Classification: B65B,B65G

Abstract:
1. Apparatus for releasably securing the lid of a receptacle for removal or replacement of the lid, the apparatus comprising: a first chamber defined by an upper member and a flexible lower member, a means for fluid flow into and from the first chamber whereby the first chamber may be pressurised or evacuated causing the flexible member to flex outwardly from or inwardly towards the upper member, respectively; a second chamber defined by the lid, a cylindrical member and the flexible member when the cylindrical member contacts the lid; whereby evacuation of the first chamber results in a pressure drop in the second chamber without fluid flow from the first chamber to the second chamber, or from the second chamber to the first chamber, the pressure drop being sufficient to secure the lid to the flexible member for removal of the lid from the receptacle.