A material sprayer includes a hopper and a shaker assembly mounted onto a sidewall of the hopper. The hopper includes at least one sidewall that extends along a first plane. The shaker assembly includes a resilient bracket, an electromagnetic coil, and an armature. The resilient bracket is mounted to the sidewall of the hopper and includes first and second ends and a curved portion. The electromagnetic coil is mounted to a portion of the resilient bracket and is configured to generate a magnetic field in response to a current from a power source. The armature is mounted to a portion of the resilient bracket such that the armature is able to move relative to the electromagnetic coil along an acceleration axis that is orthogonal to the first plane of the sidewall of the hopper.

In accordance with presently disclosed embodiments, a collapsible and optionally stackable storage container for bulk material is provided. The disclosed storage container includes a collapsible frame defined by a rigid upper support structure, a rigid lower support structure and a support member coupled at one end to the upper support structure and coupled at another end to the lower support structure. An actuator is also provided which is coupled to the support member at one end. The disclosed storage container further includes a storage sack having an upper portion coupled to the upper support structure and a lower portion coupled to the lower support structure. The lower portion of the storage sack is generally taper-shaped and may be equipped with a discharge opening that enables release of the bulk material onto a conveyor, which may be employed when the collapsible storage container is integrated into a bulk storage system.

In accordance with presently disclosed embodiments, a collapsible and optionally stackable storage container for bulk material is provided. The disclosed storage container includes a collapsible frame defined by a rigid upper support structure, a rigid lower support structure and a support member coupled at one end to the upper support structure and coupled at another end to the lower support structure. An actuator is also provided which is coupled to the support member at one end. The disclosed storage container further includes a storage sack having an upper portion coupled to the upper support structure and a lower portion coupled to the lower support structure. The lower portion of the storage sack is generally taper-shaped and may be equipped with a discharge opening that enables release of the bulk material onto a conveyor, which may be employed when the collapsible storage container is integrated into a bulk storage system.

An aeration apparatus to ease the emptying of a mass of powdered material from any kind of container. The apparatus comprises a vibrating membrane coupled to a device for pulling and fastening it to the container wall, so that said membrane adheres to the inner surface of the container wall. The apparatus is characterized in that the inner surface of membrane has a number of grooves shaped as radial recesses formed only on the lower half of the inner surface of the membrane itself. Each radial section of any radial recess is advantageously venturi-shaped.

An aeration apparatus to ease the emptying of a mass of powdered material from any kind of container. The apparatus comprises a vibrating membrane coupled to a device for pulling and fastening it to the container wall, so that said membrane adheres to the inner surface of the container wall. The apparatus is characterized in that the inner surface of membrane has a number of grooves shaped as radial recesses formed only on the lower half of the inner surface of the membrane itself. Each radial section of any radial recess is advantageously venturi-shaped.

A gravity-feed bin includes a generally hollow main bin having an open end, a storage reservoir and a dispensing chute. The dispensing chute has an opening disposed near a distal end. The bin includes a dispensing gate movable between open and closed positions. When the dispensing gate is in the closed position, the dispensing gate blocks the opening of the dispensing chute. The main bin includes a vertical front wall joined to planar first front surface that is disposed below the vertical front wall, at an angle relative to the vertical front wall so as to direct bulk material inwardly towards the interior of the storage reservoir. A second planar front surface is joined to the first front surface, and disposed at an angle relative to the first front surface, so as to direct the bulk material towards the dispensing chute.

A gravity-feed bin includes a generally hollow main bin having an open end, a storage reservoir and a dispensing chute. The dispensing chute has an opening disposed near a distal end. The bin includes a dispensing gate movable between open and closed positions. When the dispensing gate is in the closed position, the dispensing gate blocks the opening of the dispensing chute. The main bin includes a vertical front wall joined to planar first front surface that is disposed below the vertical front wall, at an angle relative to the vertical front wall so as to direct bulk material inwardly towards the interior of the storage reservoir. A second planar front surface is joined to the first front surface, and disposed at an angle relative to the first front surface, so as to direct the bulk material towards the dispensing chute.

The invention is directed to a sidewalk drop spreader for winter services, which is mountable on a vehicle and includes a hopper. The hopper includes a pair of spaced-apart side walls, each one of which extends parallel to the other one of the side walls, a front wall extending between the side walls, and a rear wall extending between the side walls and being spaced apart from the front wall. The hopper also includes a bottom, which in turn includes a rotatable rotor and a compression roller that extend parallel to one another between said the side walls. An agitation system includes a motor mounted to the hopper, which actuates movement of a selected one of the side walls, front wall, and rear wall.

A bulk storage and delivery system for agricultural feed. Curved plates are secured to the interior and exterior of a bulk feed storage container. The curved plates are secured to one another and a vibrator is secured to the curved plates. Horizontal and vertical vibration bars are secured to the curved plates on the interior of the bulk feed storage container. The vibrator transmits vibration through the curved plates and into the horizontal and vertical vibration bars to facilitate flow and reduce bridging and rat holing of the material provided within the bulk feed storage container.

A bulk storage and delivery system for agricultural feed. Curved plates are secured to the interior and exterior of a bulk feed storage container. The curved plates are secured to one another and a vibrator is secured to the curved plates. Horizontal and vertical vibration bars are secured to the curved plates on the interior of the bulk feed storage container. The vibrator transmits vibration through the curved plates and into the horizontal and vertical vibration bars to facilitate flow and reduce bridging and rat holing of the material provided within the bulk feed storage container.