US 11,851,856 B2
Irrigation pumpjack
Stephen Paul Stewart, Edmond, OK (US); and Karl Edward Storm, Edmond, OK (US)
Assigned to Allied H2O, Inc., Edmond, OK (US)
Filed by Allied H2O, Inc., Edmond, OK (US)
Filed on Jul. 23, 2020, as Appl. No. 16/937,335.
Claims priority of provisional application 62/938,044, filed on Nov. 20, 2019.
Claims priority of provisional application 62/879,110, filed on Jul. 26, 2019.
Prior Publication US 2021/0025148 A1, Jan. 28, 2021
Int. Cl. F04B 47/02 (2006.01); E03B 3/12 (2006.01); E03B 5/06 (2006.01); F04C 15/00 (2006.01); F04B 47/00 (2006.01)
CPC E03B 5/06 (2013.01) [E03B 3/12 (2013.01); F04B 47/00 (2013.01); F04B 47/02 (2013.01); F04C 15/0073 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A pump comprising:
a frame;
a docking platform connected to the frame;
a motor mounted to the docking platform, the motor having a rotatable drive shaft extending therefrom;
a plurality of cross beams connected to the frame;
at least one pair of roller bearings mounted to the cross beams;
a vertically reciprocable slide bar driven by rotation of the rotatable drive shaft and reciprocable through the at least one pair of roller bearings;
a pump rod connector attached to the slide bar and connectable to a pump rod extending into a well;
a speed reduction arrangement coupled to the drive shaft, the speed reduction arrangement comprising;
a drive pulley fixed to the rotatable drive shaft;
a gearbox containing a speed reducing gear arrangement;
a gear shaft extending from the gearbox and connected to the gear arrangement;
a driven pulley fixed to the gear shaft; and
a drive belt engageable with the drive shaft and the gear shaft;
an output shaft rotated by the drive shaft at a rotational speed less than the rotational speed of the drive shaft;
a disk coupled to the output shaft and rotatable therewith, the disk being connected to the sliding bar such that rotation of the disk vertically reciprocates the slide bar; and
an idler pulley movable between a first position and a second position, wherein in the second position the idler pulley tensions the drive belt so that the rotation of the drive shaft rotates the gear shaft, and in the first position the drive belt is loose and the gear shaft may be used as an auxiliary input shaft for connection to an auxiliary input source.