US 9,809,944 B2
Reel system within boom
William J. Hren, Wauwatosa, WI (US); and Ethan Pedretti, Holmen, WI (US)
Assigned to Harnischfeger Technologies, Inc., Wilmington, DE (US)
Filed by Harnischfeger Technologies, Inc., Wilmington, DE (US)
Filed on Jun. 26, 2014, as Appl. No. 14/316,211.
Claims priority of provisional application 61/840,620, filed on Jun. 28, 2013.
Prior Publication US 2015/0003950 A1, Jan. 1, 2015
Int. Cl. E02F 3/30 (2006.01); F16L 3/01 (2006.01); E21C 27/30 (2006.01); E02F 3/46 (2006.01); E02F 9/22 (2006.01); F16L 39/04 (2006.01); E21C 47/00 (2006.01); E02F 9/08 (2006.01)
CPC E02F 3/308 (2013.01) [E02F 3/46 (2013.01); E02F 9/2275 (2013.01); E21C 27/30 (2013.01); E21C 47/00 (2013.01); F16L 3/012 (2013.01); F16L 39/04 (2013.01); E02F 9/0858 (2013.01)] 38 Claims
OG exemplary drawing
 
36. A mining machine comprising:
a boom having an interior chamber;
a handle slidably coupled to the boom; and
a reel system disposed at least partially within the chamber,
wherein the reel system includes a reel and at least one flexible conduit coupled to the reel, and
wherein the reel is movable from a first position inside the chamber to a second position at least partially outside of the chamber.