US 12,187,139 B2
Trolley system
Joshua Brown, Newport News, VA (US); and Lucas Smith, Newport News, VA (US)
Assigned to LIEBHERR MINING EQUIPMENT NEWPORT NEWS CO., Newport News, VA (US)
Filed by Liebherr Mining Equipment Newport News Co., Newport News, VA (US)
Filed on Jun. 15, 2021, as Appl. No. 17/348,683.
Prior Publication US 2022/0396152 A1, Dec. 15, 2022
Int. Cl. B60L 5/36 (2006.01); B60L 5/10 (2006.01)
CPC B60L 5/36 (2013.01) [B60L 5/10 (2013.01); B60L 2200/26 (2013.01); B60L 2200/36 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A trolley system for providing electrical power to a vehicle, the trolley system comprising:
a trolley line comprising an insulating housing enclosing a conductor, wherein the trolley line is:
a flexible structure to be loosely positioned on a ground surface; and
a current collector assembly mounted on the vehicle for establishing a sliding electrical contact with the conductor of the trolley line,
wherein the trolley system is configured such that the current collector assembly raises the trolley line from the ground surface for establishing the sliding electrical contact.