Patent ID: 8162625

Claim:
A lobe pump, reduction gears, motor combination comprising: a lobe pump having a pump housing, inlet, outlet, and a drive shaft and a lay shaft at least partially surrounded by the pump housing, said pump housing having a rear flange and an axis relative to a center of the housing extending parallel to the drive and lay shafts, said axis is non-colinear with either of the drive and lay shafts; reduction gears having an output shaft operably coupled to the drive shaft of the lobe pump at the output shaft, said reduction gears also having an input shaft and a housing surrounding at least a portion of the output shaft and the input shaft, said gear housing having a front flange connected to the rear flange of the lobe pump with the output shaft of the reduction gears nested relative to the drive shaft of the pump internal to at least one of the front flange, rear flange, gear housing and the pump housing; and a motor connected by a driven shaft to the input shaft of the reduction gears; wherein the driven shaft of the motor is rotated at a higher speed than the output shaft of the reduction gears; and wherein the front and rear flanges selectively connect together in one of a first and a second of at least two configurations, with the outlet of the pump positioned ninety degrees apart between the first and second configurations.