US 6,461,033 B2Granted

Portable mixing apparatus

OwnerDouglas R. Palmer, David T. Watkinsinventors

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Abstract

A portable mixing device for quickly and efficiently combining dry constituents with water to form a mix having a thin batter consistency and no unmixed material. Mounted on a wheeled, pivoting frame, a single individual can use the device to mix the material and pour it in the proper location. The device includes a cylindrical mixing drum and agitation tool mounted within the mixing drum. The agitation tool includes a motor and housing, a drive shaft, wiping assembly, and mixing assembly. The stationary wiping assembly, which extends downward into the mixing drum co-mingles so as to pass closely between and among the blades of the rotating mixing assembly such that the flexible edge portions of the wiping assembly blades are in intermittent contact with the blades of the mixing assembly. The “wiping” action of the wiper assembly on the mixing assembly insures complete and efficient agitation and mix of materials.

Claims26

Dependent claims

A portable mixing apparatus for quick and efficient production of a loose, fluid cement of uniform and thin consistency, the portable mixing apparatus being is sized to be transported and operated by a single individual, the portable mixing apparatus comprising a frame, a drum, and agitation means, wherein

said drum is a hollow cylinder in shape and has a longitudinal axis, an open upper end, and a closed lower end, said drum having an interior surface and an exterior surface, said drum receiving the materials to be mixed within the interior space of the hollow cylinder,
said frame is comprised of an external portion and an internal portion,
said external portion having a generally rectangular shape and being mounted on wheels,
said internal portion having a generally cylindrical shape, an upper end, a lower end, and a longitudinal axis, the internal portion being pivotally mounted to an interior aspect of said external portion, said internal portion being sized to receive said drum portion therewithin such that the longitudinal axis of the drum coincides with the longitudinal axis of the internal portion, and such that the upper end of said internal portion coincides with the upper end of said drum,
said agitation means is comprised of a motor, a drive shaft, wiping means, and mixing means,
said drive shaft has a first end which extends from and is driven by said motor, and wherein said drive shaft has a second end which is opposed to said first end,
said wiping means is stationary and extends downward into said interior space of said drum
said mixing means is mounted to said second end of said drive shaft and extends upward to co mingle with said wiping means to provide efficient agitation.

5 more elements

An apparatus for mixing comprising a frame, a mixing drum, and mixing means, wherein

said frame is wheel mounted and supports said mixing drum,
said mixing drum is a hollow cylinder having a closed lower end, open upper end, and a longitudinal axis which extends along the centerline between said closed lower end and said open upper end,
said mixing means comprises a motor, a drive shaft which extends from said motor along said longitudinal axis through said mixing drum, wiping means, and agitation means,
wherein said wiping means and said agitation means cooperatively intermingle within the interior space of the mixing drum such that said wiping means and said agitation means intermittently contact each other.

1 more element

A portable mixing device comprising a combination mixing apparatus and support frame for quickly and efficient agitation of dry particulate materials and liquid to a thin, wet slurry consistency, said mixing apparatus comprising agitation means and container means for receiving said materials and liquid, wherein said support frame rests on wheels for easy positioning of said device, and said support frame supports said mixing apparatus in space,

said agitation means comprising a motor, a motor housing, a drive shaft, wiping means, and mixing means,
said container means comprising an elongate hollow cylindrical mixing drum, said drum having an open top end, a closed bottom end, and a longitudinal axis which extends along the centerline between said top end and said bottom end,
wherein said motor is fixed to said motor housing, said motor housing is fixed to said external frame so as to reside above said open top end of said drum, said drive shaft extends downward from the motor into said drum so as to be coincident with said longitudinal axis,
said wiping means comprising a first plurality of elongate blades, said first plurality of blades having flexible edge portions, said first plurality of blades being fixed to and extending downward into said drum from said motor mount so as to lie in parallel with said drive shaft,
said mixing means comprising a second plurality of elongate blades, said second plurality of blades extending within said drum so as to pass closely between said first plurality of elongate blades such that said flexible edge portions of said first plurality of blades is in intermittent contact with said second plurality of elongate blades.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/756,507Filed 8 Jan 2001
Published: US 2002/0089892 A111 Jul 2002
Granted: 8 Oct 2002
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B28C 5/0856
Details; Accessories: supporting frames or structures, e.g. supporting wheels
B01F 27/9021
Cooperating with intermeshing elements fixed on the receptacle walls: the elements being vertically arranged, e.g. fixed on the bottom
B01F 33/502
Movable or transportable mixing devices or plants: vehicle-mounted mixing devices
B01F 33/5024
Vehicle-mounted mixing devices: the vehicle being moved by human force