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US 4,971,215 AGranted
Nesting drums
AssigneeGrief Brothers Corporation
InventorCesar Santoni
Life of this patent
Estimating the term…
Abstract
A nesting drum and a method of making the same is provided. The drum comprises a shell which has a necking at the bottom to accommodate a double seam between the shell and the closure. The closure has a raised circular center and a plurality of ribs which re-enforce the shell to resist large loads. '
Claims12
A nestable drum comprising:
- a shell with at least one end with an inner diameter;
- a closure seamed to said end and having a raised center and a cylindrical side, having a plurality of ribs projecting radially outward generating a circle having a diameter substantially equal to said end inner diameter said ribs cooperating with said bottom end to form a reinforced seam;
- and
- said drum being necked in with an annular space around it.
1 more element
A nestable drum comprising:
- a shell with at least one end with an inner diameter;
- a closure seamed to said end and having a raised center and a cylindrical side, having a plurality of ribs projecting radially outward generating a circle having a diameter substantially equal to said end inner diameter said ribs cooperating with said bottom end to form a reinforced seam;
- and
- the ribs being substantially flattened when seamed to the end.
1 more element
A multi-gallon capacity nesting drum comprising:
- a shell having a reduced diameter necked-in bottom end;
- an inverted plate-shaped closure with a raised circular center and a circular side, said side having a plurality of ribs extending radially outward;
- said closure and shell being joined by a seam which fits into said necking, the ribs being positioned and arranged to reinforce the shell.
A drum comprising:
- a cylindrical shell with a first end defined by a bottom inner diameter with an annular shell flange disposed in a first plane extending perpendicularly to a shell axis;
- and
- an inverted plate-shaped closure having a raised circular center, a cylindrical side wall attached to said center and having a plurality of radial ribs which define a circle having a diameter substantially equal to said bottom inner diameter;
- and a flange disposed in a second plane parallel with said first plane, said flanges having conforming shapes
- said shell and closure being joined by placing said closure adjacent to said shell with the center disposed within said bottom end, and said closure shell in continuous contact with said shell flange and bending the flanges together radially to form a seam reinforced by said ribs.
2 more elements
Dependencies are inferred from the claim text.