US 12,331,481 B2
Working machine
Duncan Andrew Smith, Uttoxeter (GB); Nigel Young, Uttoxeter (GB); and David Price, Uttoxeter (GB)
Assigned to J. C. Bamford Excavators Limited, Uttoxeter (GB)
Filed by J. C. Bamford Excavators Limited, Uttoxeter (GB)
Filed on Nov. 3, 2022, as Appl. No. 17/980,540.
Claims priority of application No. 2115761 (GB), filed on Nov. 3, 2021.
Prior Publication US 2023/0183941 A1, Jun. 15, 2023
Int. Cl. E02F 9/08 (2006.01); E02F 3/32 (2006.01); E02F 9/12 (2006.01); E02F 9/16 (2006.01)
CPC E02F 9/0883 (2013.01) [E02F 3/325 (2013.01); E02F 9/121 (2013.01); E02F 9/16 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A working machine comprising:
a ground engaging structure provided in the form of front and rear wheels or a pair of endless tracks;
an undercarriage supported on the ground engaging structure;
a drive arrangement configured to provide motive power to the ground engaging structure to propel the working machine, the drive arrangement comprising a prime mover;
a superstructure connected to the undercarriage;
a rotary connector connecting the superstructure to the undercarriage and configured to permit rotation of the superstructure relative to the undercarriage about a rotational axis;
a working arm connected to the superstructure; and
a hydrogen fuel tank assembly comprising at least one fuel tank defining an internal volume for storing fuel to be supplied to the prime mover,
wherein the at least one fuel tank comprises an elongate cylinder or torus having a principal axis that encircles the rotational axis.