US 8,474,622 B2Granted

Bulk material container

AssigneeR3 Composites, Inc.

InventorsRoy James Carver, III, David J. Burken, Mark A. Post, Aron Rutin, Brig W. Vanderwoude

Life of this patent

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Abstract

A bulk material container and method for its use is provided. In one or more embodiments, the bulk material container includes: a lid with a lid reinforcement frame positioned substantially at least around the perimeter of said lid, a vertical stop on the exterior of the walls of said container that contacts a projection from an interior wall of said container when one of said bulk material containers is stacked in another, a modular design in which the walls and base of the bulk material container are detachable and replaceable, a stiffening ring positioned around the perimeter of the container walls near their vertical top, and a lid having a lateral motion restraining system to restrain the lateral motion of one container stacked on another.

Claims4

Dependent claims

A system for stacking bulk material containers, said system including:

a first bulk material container having at least one container wall, wherein said at least one container wall includes a projection projecting inwardly from the interior of said container wall;
and
a second bulk material container having at least one container wall, wherein said at least one container wall includes a vertical stop positioned on the exterior of said at least one container wall,
wherein, when said second bulk material container is introduced into said first bulk material container to stack said second bulk material container in said fist bulk material container, the downward movement of said second bulk material container into said first bulk material container is stopped by said vertical stop coming into contact with said projection so that the exterior of the bottom of said second bulk material container is suspended away from the interior of the bottom of said first bulk material container,
wherein said projection is one of a series of projections and recesses in said interior of said container wall,
wherein said vertical stop is positioned in a recess on the exterior of said at least one container wall.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/981,015Filed 29 Dec 2010 · us provisional application
Priority: 29 Dec 2009
Published: US 2011/0155610 A130 Jun 2011
Granted: 2 Jul 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification25 codes

B65D 21/0217
Stackable or joined together one-upon-the-other in the upright or upside-down position: containers with a closure presenting stacking elements
B65D 11/1873
With detachable components: all walls are detached from each other to collapse the container
B65D 19/0018
Forming discontinuous or non-planar contact surfaces: and each contact surface having a discrete foot-like shape
B65D 21/0233
Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together: nestable containers