A double suction cup assembly includes a holding member, a first suction cup module, a driving member, a second suction cup module, and a driven member. The holding member includes a grip, a first seat, and a second seat. The first suction cup module is mounted on the first seat and driven by the driving member. The second suction cup module is mounted on the second seat and driven by the driven member. The driven member is driven by the driving member. Thus, the driving member drives the driven member to operate the first suction cup module and the second suction cup module simultaneously, and to form or release a vacuum state simultaneously.

A holder, a transport device, and a method of manufacturing a container are described. The container comprises a body that extends along an axis and a flange that extends radially to the axis, and the holder comprises one or more fastening elements that are configured to engage one or more of a top surface, a bottom surface, or a peripheral surface of the flange.

A vacuum gripper comprises a rigid base element and a loop-shaped vacuum seal element. The base element has first and second opposite sides. The seal element is attached at least indirectly to the second side and protruding therefrom in a direction away from the first side. The seal element comprises a contact surface that at least partially contacts with an object surface and an encircling surface oriented transversely to the contact surface so as to define a chamber. The seal element is elastically deformable at the contact surface to enable conforming to the object surface when pressed thereagainst. The vacuum gripper comprises an air extraction means mounted to the first side to be in fluid communication with the chamber through the base element, and configured to continuously extract air from the chamber to cause the contact surface to be urged towards and grip the object surface when pressed thereagainst.

A vacuum gripper comprises a rigid base element and a loop-shaped vacuum seal element. The base element has first and second opposite sides. The seal element is attached at least indirectly to the second side and protruding therefrom in a direction away from the first side. The seal element comprises a contact surface that at least partially contacts with an object surface and an encircling surface oriented transversely to the contact surface so as to define a chamber. The seal element is elastically deformable at the contact surface to enable conforming to the object surface when pressed thereagainst. The vacuum gripper comprises an air extraction means mounted to the first side to be in fluid communication with the chamber through the base element, and configured to continuously extract air from the chamber to cause the contact surface to be urged towards and grip the object surface when pressed thereagainst.