Stackable bucket

{
  "publication_number": "US10604909B2",
  "country": "US",
  "kind": "B2",
  "title": "Stackable bucket",
  "abstract": "A stackable bucket having a floor, a back wall, and two side walls has a tapered front to back floor but wherein the back wall is substantially rectangular. A diagonal bend allows each side plate to connect to the tapered floor and to the rectangular back wall. Gussets and double-ended reverse hooks may also be used to provide spacing between nested buckets.",
  "claims": [
    "1. A stackable bucket for heavy equipment comprising a substantially rectangular top wall having parallel side edges, a completely planar floor that tapers from a straight floor leading edge to a floor trailing edge, wherein said top wall and said floor are at an acute angle to each other, and sides that each of the sides includes a bend that divides each of said sides into a bottom side portion and a top side portion wherein said bottom side portion is substantially perpendicular to said completely planar floor and said top side portion is angled inwards in relation to said bottom portion such that each of said sides connects to both the tapering floor and the parallel side edges of the top wall.",
    "2. A stackable bucket for heavy equipment comprising: a completely planar floor having a straight floor leading edge and first and second floor side edges; said floor further comprising a floor trailing edge that is shorter in length than the straight floor leading edge; a top wall having a top wall leading edge, wherein said top wall and said floor are at an acute angle to each other; said top wall further comprising: first and second top wall side edges that are parallel to one another; a top wall trailing edge that is equal in length to said top wall leading edge; and, a first side wall connected to said first floor side edge and said first top wall side edge; a second side wall connected to said second floor side edge and said second top wall side edge; wherein said first side wall comprises a first bend that divides said first side wall into a first bottom side portion and a first top side portion wherein said first bottom side portion and the first top side portion are at an angle to each other and said second side wall comprises a second bend that divides said second side wall into a second bottom side portion and a second top side portion wherein said second bottom side portion and the second top side portion are at an angle to each other; wherein said first bottom side portion and second bottom side portion are substantially perpendicular to said completely planar floor; wherein said first top side portion is angled inwards in relation to said first bottom side portion and said second top side portion is angled inwards in relation to said second bottom side portion; and wherein said top wall trailing edge is connected to said floor trailing edge.",
    "3. The stackable bucket of claim 2 wherein said first bend is diagonal in relation to said first side wall and wherein said second bend is diagonal in relation to said second side wall.",
    "4. The stackable bucket of claim 2 further comprising a first gusset connected to said top wall and said first side wall and a second gusset connected to said top wall and said second side wall; wherein said first gusset has a first flat portion and said second gusset has a second flat portion; and wherein when said stackable bucket is stacked on top of a lower bucket of the same configuration, said first flat portion rests on a first side wall of said lower bucket and said second flat portion rests on a second side wall of said lower bucket.",
    "5. An assembly of stackable buckets wherein each of said buckets is a stackable bucket for heavy equipment comprising a substantially rectangular top wall having parallel side edges, a floor that tapers from a floor leading edge to a floor trailing edge, and sides that each of the sides includes a bend such that each of said sides connects to both the tapering floor and the parallel side edges of the top wall, said assembly comprising: said buckets; and at least one double-ended reverse hook installed on a first of said buckets using a downward facing end of said hook; wherein an upward facing end of said hook supports a portion of a leading edge of a bottom of another of said buckets; and wherein successive buckets nest into one another.",
    "6. The assembly of claim 5 wherein said downward facing end of said hook is engaged in a gap provided between a lip plate welded to a floor of said first bucket and a bolt-on edge connected to said lip plate.",
    "7. The assembly of claim 5 wherein said at least one double-ended reverse hook is installed on an outside of a bottom of said first of said buckets.",
    "8. A method of stacking buckets wherein each bucket is a stackable bucket for heavy equipment comprising a substantially rectangular top wall having parallel side edges, a floor that tapers from a floor leading edge to a floor trailing edge, and sides that each of the sides includes a bend such that each of said sides connects to both the tapering floor and the parallel side edges of the top wall, said method comprising: placing a first bucket on a surface such that an opening of said first bucket faces downward; providing at least one double-ended reverse hook having a downward facing end and an opposing upward facing end; placing said at least one double-ended reverse hook on said first bucket; placing a second bucket over said first bucket such that a leading edge of a bottom of said second bucket is supported by said upward facing end of said at least one hook.",
    "9. The method of claim 8 wherein said leading edge of the bottom of said second bucket comprises a floor leading edge of said second bucket.",
    "10. The method of claim 8 wherein said leading edge of the bottom of said second bucket comprises a bolt-on edge and a lip plate.",
    "11. The method of claim 8 wherein said downward facing end of said at least one double-ended reverse hook is placed in a gap between a lip plate welded to a floor of said first bucket and a bolt-on edge connected to said lip plate.",
    "12. The method of claim 8 wherein said at least one double-ended reverse hook is placed on an outside of a bottom of said first bucket."
  ],
  "description_excerpt": "This invention relates to heavy equipment buckets. In particular, this invention relates to stackable heavy equipment buckets.\n\nA variety of bucket designs for heavy equipment such as skid steers and loaders are known in the art. For example U.S. Pat. No. 8,875,422 to Tanaka et al.; U.S. Pat. No. 8,707,589 to Hilton; U.S. Pat. No. 8,695,240 to Mills et al.; U.S. Pat. No. 8,240,070 to Phillips et al.; U.S. Pat. No. 7,992,329 to Horton; U.S. Pat. No. 7,832,128 to Doucette et al. and U.S. Patent Application Pub. Nos. 2014/0331528 to Tanaka et al. and 2014/0230293 to Lunn et al. all disclose various buckets.\n\nThe storage or shipping of buckets typically requires significant space. When such buckets are manufactured and shipped, multiple shipping containers, flat-bed trucks or trailers may be necessary for transportation depending on the number of buckets.\n\nU.S. Pat. No. 6,374,520 to Westendorf et al. discloses a bucket providing a tapered floor and a tapered back wall allowing a nested stacking of buckets. In the Westendorf System, the buckets are most efficiently stacked in an alternating manner. But such alternate stacking is time intensive and requires significant space to maneuver the buckets into position.\n\nIt is an object of the invention to provide an improved stackable bucket that may be stacked quickly.\n\nThese and other objects of the invention will be better understood by reference to the detailed description of the preferred embodiment which follows. Note that the objects referred to above are statements of what motivated the invention rather than promises.",
  "cpc": [
    "E02F 3/40",
    "E02F 3/34",
    "E02F 3/3414"
  ],
  "ipc": [
    "B65G 57/16",
    "E02F 3/40"
  ],
  "assignees": [
    "CWS Industries Mfg Corp"
  ],
  "inventors": [
    "Steve Wright",
    "Bob Beales"
  ],
  "filing_date": "2015-08-29",
  "publication_date": "2020-03-31",
  "grant_date": "2020-03-31",
  "priority_date": "2015-06-30",
  "application_number": "US-201514839969-A",
  "family_id": "57590902",
  "cited_by_count": 0,
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}