Sanitary mixing assembly for vessels and tanks
AssigneeJV Northwest, Inc.
InventorFrank Kupidlowski
Life of this patent
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Abstract
The present invention provides component parts for a mixing assembly adapted to be used with clean in place techniques. The component parts may include an impeller assembly, an adjustable hub assembly and a steady bearing assembly. In one embodiment, the blades of the impeller assembly may be adapted to direct a portion of the water initially aimed at the top surface of the blade towards the bottom surface of the blade.
Claims20
An impeller assembly for a mixing vessel, the impeller assembly being rotatably engaged with a shaft, the impeller assembly comprising a plurality of blades radiating from a central hub, each of said blades having:
- a top surface and a bottom surface;
- a generally curved leading edge adapted to direct a liquid initially aimed at the top surface towards the bottom surface;
- and
- a trailing edge having an outer portion generally tapered outwards and an inner portion generally tapered inwards, thereby forming a central apex corresponding to a widest point of the blade, wherein the widest point of the blade has a curvature that is roughly s-shaped and the distal edge of the blade has a curvature that is generally L-shaped.
An impeller assembly for a mixing vessel, the impeller assembly being rotatably engaged with a shaft, the impeller assembly comprising a plurality of blades radiating from a central hub, each of said blades having:
- a top surface and a bottom surface;
- a generally curved leading edge adapted to direct a liquid initially aimed at the top surface towards the bottom surface;
- and
- a trailing edge having an outer portion generally tapered outwards and an inner portion generally tapered inwards, thereby forming a central apex corresponding to a widest point of the blade, wherein the widest point of the blade has a curvature that is roughly s-shaped and the portion of the blade attached to the central hub has a near vertical pitch.
A sanitary impeller comprising:
- a hub having a bore for fixing the impeller to a shaft along an axis defined by the bore;
- a blade extending from the hub, wherein a cross section of the blade viewed in a plane generally parallel the axis of the bore progresses from a near linear shape to a curvilinear S-shape, and then to a curvilinear L-shape as a point of view progresses along the blade from an attachment edge adjacent the hub to a distal end of the blade.
A mixing assembly comprising:
- a shaft;
- a hub operatively engaged to the shaft;
- and
- a blade extending from the hub, wherein a cross section of the blade viewed in a plane generally parallel the axis of the bore progresses from a near linear shape to a curvilinear S-shape and then to a curvilinear L-shape as a point of view progresses along the blade from adjacent the hub to a distal end of the blade.
An impeller assembly for a mixing vessel, the impeller assembly being rotatably engaged with a shaft, the impeller assembly comprising a plurality of blades radiating from a central hub, each of said blades having:
- a top surface and a bottom surface;
- a generally linear leading edge;
- and
- a bidirectionally tapered trailing edge having an outer portion generally tapered outwards and an inner portion generally tapered inwards, thereby forming a central apex corresponding to a widest point of the blade, wherein a distal edge has a generally L-shaped curvature.
Dependencies are inferred from the claim text.