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US 4,859,073 AGranted
Fluid agitator and pump assembly
OwnerWilliam E. Howseman, Jr., Harold J. Engelinventors
Life of this patent
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Abstract
A fluid agitator and pump assembly for thoroughly mixing fluids with heavier materials that settle to the bottom of the chamber. The chamber is tubular and stands vertical with two motors on the top surface; one motor rotates an axial tube having radial mixing blades at the chamber bottom, the second motor drives a coaxial shaft running through the tube to a pump. In one embodiment, the pump is a piston pump and the second motor reciprocates a piston on the bottom of the coaxial shaft. In a second embodiment, the second motor rotates the drive shaft for driving a rotary pump.
Claims12
A fluid agitator and pump assembly comprising:
- a mixing chamber having a top, side walls, and a substantially circular floor with a centrally located fluid exit opening therein;
- a tubular shaft within said chamber said shaft being aligned with said fluid exit opening;
- at least one mixing blade attached to said tubular shaft, said blade having a bottom edge and outer edges respectively spaced from and adjacent to the interior floor and walls of said chamber;
- first means at the top of said chamber for rotating said tubular shaft;
- and
- second means at the top of said chamber and coupled to a drive shaft extending through said tubular shaft for driving a mixture pump at the bottom of said chamber.
3 more elements
Dependencies are inferred from the claim text.