US 12,227,913 B2
Mobile foundation for tower cranes and fast-erecting cranes
Thomas Kainzmayer, Pfaffstätten (AT)
Filed by Thomas Kainzmayer, Pfaffstätten (AT)
Filed on Jan. 24, 2022, as Appl. No. 17/648,720.
Claims priority of application No. A 50061/2021 (AT), filed on Feb. 1, 2021.
Prior Publication US 2022/0243419 A1, Aug. 4, 2022
Int. Cl. E02D 27/44 (2006.01); E04F 15/06 (2006.01); E04H 3/28 (2006.01); E21B 15/00 (2006.01)
CPC E02D 27/44 (2013.01) [E04F 15/06 (2013.01); E04H 3/28 (2013.01); E21B 15/00 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A mobile foundation for tower cranes and fast-erecting cranes, comprising:
two floor elements made from metal including anchoring devices for a crane tower, which floor elements are configured to be releasably connected to one another,
wherein the floor elements are connected to one another at their side walls by the side walls having through-holes for screws or bolts, wherein positions of the through holes in the side walls of the floor elements correspond to one another and are configured to be aligned with one another in a case of a side-by-side arrangement of the floor elements, wherein the screws or bolts are insertable through the alignment through holes for direct connection of the floor elements,
wherein each floor element comprises beams connected to one another by welding,
wherein each floor element includes plates, selected from cover plates, floor plates, or a combination of cover plates and floor plates, which plates are connected to at least some of the beams.