US 12,351,437 B2
Modular crane component system
Jeffrey D. Thompson, Irvine, CA (US)
Filed by Jeffrey D. Thompson, Irvine, CA (US)
Filed on Mar. 22, 2022, as Appl. No. 17/700,949.
Application 17/700,949 is a division of application No. 16/457,288, filed on Jun. 28, 2019, granted, now 11,299,375.
Claims priority of provisional application 62/781,360, filed on Dec. 18, 2018.
Prior Publication US 2022/0212899 A1, Jul. 7, 2022
Int. Cl. B66C 5/00 (2006.01); B66C 5/02 (2006.01); B66C 7/02 (2006.01); B66C 11/04 (2006.01); B66C 11/16 (2006.01); B66C 19/00 (2006.01)
CPC B66C 5/02 (2013.01) [B66C 7/02 (2013.01); B66C 11/04 (2013.01); B66C 11/16 (2013.01); B66C 19/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A crane base support system for use with a parapet wall extending vertically from a floor, the crane base support system comprising:
a base plate positionable upon the floor;
a central column extending from the base plate;
support legs each having a distal end and an attachment end, the attachment end of each of the support legs being rotatably attached to the base plate, the support legs each having an extended position with the support legs extending radially from the base plate and a folded position with support legs extending generally along the central column; and
a parapet wall clamp attached to and extending laterally from the central column, the parapet wall clamp having a jaw with a jaw opening facing generally towards the base plate, the jaw opening being sized and configured to receive and engage the parapet wall.