Patent ID: 7037085
Filing Date: 2006-05-02
Classification: B05C,B29B,B29C,F01C,F04C

Abstract:
1. A dual gear, single outlet material pump for enabling a user to provide an equal parallel outflow from the pump, comprising in combination: a rectilinear base plate having an upper surface and a lower surface with a side edge and having a thickness there between with the base plate having an inflow opening there through, the upper surface of the base plate having a plurality of pin recesses and threaded screw recesses and an idler bearing recess and a drive shaft bearing recess there in; a lower gear plate having a rectilinear configuration with an upper surface and a lower surface with a side edge and having a thickness there between, the lower gear plate having a tri-lobed aperture there through with each of the lobes having a first diameter, the lower gear plate having an outlet on the edge, the outlet communicating with the tri-lobed aperture; a pair of lower gears being a drive gear and an idler gear, each gear having an external second diameter with each of the gears having a shaft hole there through, the shaft hole having a third diameter, with the second diameter being slightly less than the first diameter and the second diameter being greater than the third diameter, the gears being housed within the tri-lobed aperture of the lower gear plate; a lower pair of associated shaft bearings, one for each of the shafts; a seal being located between the base plate and the lower gear plate; a pair of alignment pins; a spacer plate having an upper surface and a lower surface and a side edge having a thickness there between, the spacer plate having a plurality of pin holes and a plurality of shaft holes and a material flow hole and a plurality of bolt holes and a plurality of alignment pin holes there through, the spacer plate side edge having a plurality of temperature sensor recesses there into; a seal located between the lower gear plate and the spacer plate; an idler shaft having a third diameter and sized to be firmly received by the idler gear, the shaft passing through a shaft hole in the spacer plate and the shaft hole of the lower idler gear; an upper gear plate having a rectilinear configuration with an upper surface and a lower surface with a side edge having a thickness there between, the upper gear plate having a tri-lobed aperture there through with each of the lobes having a first diameter, the upper gear plate having an outlet on the edge, the outlet communicating with the tri-lobed aperture; a pair of upper gears being a drive gear and an idler gear, each gear having a external second diameter with each of the gears having a shaft hole there through, the shaft hole having a third diameter, the gears being housed within the tri-lobed aperture of the upper gear plate; an upper pair of associated shaft bearings, one for each of the shafts; a top plate having an upper surface and a lower surface with a side edge having a thickness there between, the lower surface of the top plate having a plurality of pin recesses and an idler shaft bearing recess therein and a drive shaft bearing hole there through and, the top plate also having a plurality of screw holes there through; a seal being positioned between the top plate and the upper gear plate; a plurality of heating plates being coupled to the sides of the assembled pump to provide heat to the pump and the material as it passes through the pump; a plurality of temperature sensors coupled to the temperature sensor recesses; a drive shaft having an upper end and a lower end, the drive shaft being sized to pass through the drive gears and plates and to be received by a lower bearing on the lower end and an upper bearing on the upper end; a plurality of bolts to couple the plates to each other; and the pump having an outlet plate for coupling with each of the outlets of the lower gear plate and the upper gear plate to form a single outlet.