Vacuum cup and a method of processing a thin glass sheet

A vacuum cup comprising:

• a body portion comprising an elongate cavity and a contact surface extending around the elongate cavity for contacting a glass sheet and forming a chamber with the elongate cavity and the glass sheet;
• the elongate cavity having a periphery and the contact surface having an edge facing into the elongate cavity to define the periphery of the elongate cavity;
• there being an opening in the body portion in fluid communication with the elongate cavity such that when the chamber is formed with the glass sheet and a low-pressure source is connected to the opening in the body portion, the contact surface forms a seal with the glass sheet to attach the vacuum cup to the glass sheet;
• wherein the periphery of the elongate cavity has a major axis and a minor axis orthogonal to the major axis, the major axis being longer than the minor axis,
• further wherein the periphery of the elongate cavity has a first end portion at one end of the major axis and a second end portion at the opposite end of the major axis, wherein the first end portion of the periphery of the elongate cavity is larger than the second end portion of the periphery of the elongate cavity,
• wherein between the first and second end portions of the periphery of the elongate cavity, the periphery of the elongate cavity has a central portion having a first side and a second side,
• wherein the first side of the central portion of the periphery of the elongate cavity is not parallel with the second side of the central portion of the periphery of the elongate cavity.