초록 ▼

The mixing bucket and integral mold (10) has frustoconical walls (12), a bottom wall (14), a bottom rim (32) and top rim (24). A lid (16) closes and seals the bucket. A bail (28) is provided for lifting and carrying the bucket. A flange (38) that is integral with the bottom wall (14) and inside the

The mixing bucket and integral mold (10) has frustoconical walls (12), a bottom wall (14), a bottom rim (32) and top rim (24). A lid (16) closes and seals the bucket. A bail (28) is provided for lifting and carrying the bucket. A flange (38) that is integral with the bottom wall (14) and inside the bottom rim (32) reinforces and supports the bottom wall and forms a mold cavity (36). Agitators (60) each of which has a base, an integral post (68) and agitation surfaces (72) are attached to the inside surface of the frustoconical walls (12) along two helixes (62,64). The agitation surfaces are shaped and oriented to agitate and mix material when the bucket is rolled on its side walls (12). The agitation surfaces can be shaped and oriented to merely divide the material being mixed, to move material toward the lid (16), to move material toward the bottom wall (14), to move material radially inward toward the central axis (18) or to move material radially outward toward the side walls (12). The agitators (60) are axially spaced along the helixes (62,64) to reduce the torque required to rotate the bucket on its side walls (12). The lid (16) forms a cup that can be employed to measure material to be mixed.

대표청구항 ▼

1. A mixing bucket for mixing an aggregate, a binder and a liquid including a frustoconical wall with a central axis an inside surface and an outside surface; a bottom wall integral with the frustoconical wall; an open top; a top rim integral with a top edge of the frustoconical wall; a removable li

1. A mixing bucket for mixing an aggregate, a binder and a liquid including a frustoconical wall with a central axis an inside surface and an outside surface; a bottom wall integral with the frustoconical wall; an open top; a top rim integral with a top edge of the frustoconical wall; a removable lid closing the open top and sealing between the lid and the frustoconical wall to prevent leakage of material from the bucket; a plurality of spaced apart agitators each having a base attached directly to the inside surface of the frustoconical wall along one or more helixes each of which extends at least ninety degrees around the central axis, an integral post that projects radially from the base toward the central axis and at least one agitation surface; and wherein the plurality of the spaced apart agitators includes at least one bottom agitator adjacent to the bottom wall, at least one top agitator adjacent to the lid when the lid is closed and a plurality of intermediate agitators along each helix axially spaced apart between the at least one bottom agitator and the at least one top agitator, the agitation surface on the integral posts agitate and mix the aggregate, binder and liquid inside the mixing bucket when the mixing bucket is rolled on its frustoconical wall and the spaced apart agitators along each helix are angularly spaced from each other around the central axis so that the agitators move into ad out of contact with the aggregate, binder and liquid being mixed, at least one agitator is in contact with the aggregate, binder and liquid being mixed at all times and the aggregate, binder and liquid being mixed exerts a substantially constant resistance to being rolled when the mixing bucket is less than full and is rolled on its frustoconical wall and wherein the axial width of each agitator is short and there is an annular zone provided between adjacent agitators along each helix where no agitators are present, and each annular zone has an axial width which defines the axial space between said adjacent agitators. 2. A mixing bucket as set forth in claim 1 in which the agitators are attached to the inside surface of the frustoconical walls along at least two helixes and there is a bottom agitator on each helix, a top agitator on each helix and a plurality of intermediate agitators axially spaced along each helix between the bottom agitator and the top agitator. 3. A mixing bucket as set forth in claim 2 in which the two helixes have the same pitch and are spaced 180 degrees from each other. 4. A mixing bucket as set forth in claim 1 wherein at least some of the agitators have a first planar agitation surface on the integral post which agitates and mixes the aggregate, binder and liquid when the bucket is rolled on its frustoconical wall in a first direction and a second planar agitation surface on the integral post which agitates and mixes the aggregate, binder and liquid when the bucket is rolled on its frustoconical wall in a second direction. 5. A mixing bucket as set forth in claim 4, wherein the first planar agitation surface on the integral post and the second planar agitation surface on the integral post are in planes that are parallel to the central axis. 6. A mixing bucket as set forth in claim 4 wherein the first and second planar agitation surfaces are in planes that are at an angle to the central axis and tend to move the aggregate, binder and liquid being agitated and mixed toward the bottom wall when the mixing bucket is rolled on its frustoconical wall in said first direction and to move the aggregate, binder and liquid being agitated and mixed toward the lid when the bucket is rolled on its frustoconical wall in said second direction. 7. A mixing bucket as set forth in claim 1 wherein the agitators have first and second planar agitation surfaces on the integral post that are in planes that are angled relative to the central axis and wherein the agitators are attached to the inside surfaces of the frustoconical wall so that the first planar agitation surfaces move the aggregate, binder and liquid being mixed axially toward the center of the bucket and away from the bottom wall and away from the lid when the bucket is rolled on its frustoconical wall in a first direction and so that the second planar agitation surfaces move the aggregate, binder and liquid being mixed axially toward the bottom wall and toward the lid when the bucket is rolled on its frustoconical wall in a second direction. 8. A mixing bucket as set forth in claim 1 wherein at least some of the agitators have a first agitation surface on their integral post that is convex and displaces the aggregate, binder and liquid being mixed axially toward the bottom wall and toward the lid when the bucket is rolled on its frustoconical wall in a first direction. 9. A mixing bucket as set forth in claim 1 wherein at least some of the agitators have a first agitation surface on their integral post that is concave and displaces the aggregate, binder and liquid being mixed radially and parallel to the axis of a radius of curvature of the agitation surface when the bucket is rolled on its frustoconical wall in a first direction. 10. A mixing bucket as set forth in claim 1 wherein at least some of the agitators have a first agitation surface on the integral post which extends inwardly toward the central axis from the base and toward the direction of rotation and moves the aggregate, binder and liquid being mixed outwardly toward the inside surface of the frustoconical wall of the bucket during rotation of the bucket on its frustoconical wall in a first direction. 11. A mixing bucket as set forth in claim 1 wherein at least some of the agitators have a first agitation surface on the integral post which extends inwardly toward the central axis and away from the direction of rotation and moves the aggregate, binder and liquid being mixed radially inward and away from the frustoconical wall of the bucket during rotation of the bucket on its frustoconical wall in a first direction. 12. A mixing bucket as set forth in claim 1 wherein the frustoconical wall extends past the bottom wall to form a bottom rim that holds the bottom wall up away from a bucket support surface and flanges integral with the bottom wall and within the bottom rim that form a mold for concrete and reinforce and support the bottom wall. 13. A mixing bucket as set forth in claim 12, wherein the flanges have bottom surfaces that are in the same plane as the bottom surface of the bottom rim. 14. A mixing bucket as set forth in claim 1 wherein the frustoconical wall extends axially past the bottom wall to form a bottom rim that holds the bottom wall up way from a bucket support surface and interconnecting flanges that form a mold for forming concrete into a desired shape, positioned in the area defined by the bottom rim and adjacent to the bottom wall to provide support for said bottom wall. 15. A mixing bucket including a frustoconical wall with an inside surface, an outside surface and a central axis; a bottom wall integral with the frustoconical wall; an open top, a top rim integral with a top edge of the frustoconical wall; a removable lid closing the open top and sealing between the lid and the frustoconical wall to prevent leakage of material from the bucket; a plurality of spaced agitators, each having a base attached to the inside surface of the frustoconical wall, an integral post that projects radially from the base toward the central axis and at least two agitation surfaces, and wherein the plurality of the spaced agitators includes at least one bottom agitator adjacent to the bottom wall, at least one top agitator adjacent to the lid when the lid is closed and a plurality of intermediate agitators axially spaced between the at least one bottom agitator and the at least one top agitator, the agitation surfaces on the integral posts agitate and mix the material inside the bucket when the bucket is rolled on its frustoconical wall, and wherein the at least two agitation surfaces include first and second planar agitation surfaces on each integral post that are in planes that are angled relative to the central axis and wherein the agitators are attached to the inside surface of the frustoconical walls so that the first planar agitation surfaces contain means for moving the material being mixed axially toward the center of the bucket and away from the bottom wall and away from the lid when the bucket is rolled on its frustoconical wall in a first direction and the second planar agitation surfaces contain means for moving the material being mixed axially away from the center of the bucket and toward the bottom wall and toward the lid when the bucket is rolled on its frustoconical wall in a second direction. 16. A mixing bucket including a frustoconical wall with an inside surface, an outside surface and a central axis; a bottom wall integral with the frustoconical wall; an open top; a top rim integral with a top edge of the frustoconical wall; a removable lid closing the open top and sealing between the lid and the top edge to prevent leakage of material from the bucket; a plurality of spaced agitators each having a base attached to the inside surface of the frustoconical wall, an integral post that projects radially from the base toward the central axis and at least one agitation surface on the post, and wherein the plurality of the spaced agitators includes at least one bottom agitator adjacent to the bottom wall, at least one top agitator adjacent to the lid when the lid is closed and a plurality of intermediate agitators axially spaced between the at least one bottom agitator and the at least one top agitator, the agitation surfaces on the integral posts agitate and mix the material inside the bucket when the bucket is rolled on its frustoconical wall, and wherein the at least one agitation surface on at least some of the agitators is a convex surface including means for displacing the material being mixed axially toward the bottom wall and toward the lid when the bucket is rolled on its side in a first direction.