Patent ID: 11912495
Assignee: IBAU HAMBURG INGENIEURGESELLSCHAFT INDUSTRIEBAU MBH
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 16:
17. A method for preventing opening of a dome cover of a tank or vessel, wherein by means of at least one reach-around element arranged on one of the dome cover and a flange of the tank or vessel and a recess arranged on the other of the dome cover and the flange of the tank or vessel, the opening or a rotation for opening is prevented by the at least one reach-around element engaging behind the recess in a first distant position of the dome cover and the tank or vessel, wherein the recess at least partially does not extend up to a margin of the other of the dome cover and the flange of the tank or vessel or the at least one reach-around element passes over at least a section of the recess during the rotation for opening or during opening, wherein before the passing over, a greater distance is measured between a side of the other of the dome cover and the flange of the tank or vessel facing away from the one of the dome cover and the flange of the tank or vessel and a projection or the reach-around element than after the passing over, wherein in a second closer position of the dome cover and the tank or vessel, the at least one reach-around element does not engage behind the recess; and wherein the other of the dome cover and flange has an indentation which is spit-shaped, wherein the spit opens in one direction that is in a plane parallel to a plane in which a through-opening is arranged.