A hopper and method for transferring raw material, which can prevent segregation due to the impact caused by falling of the raw material powder when different types of raw material powders are transferred. The hopper for a raw material powder according to one embodiment of the present disclosure includes: a hopper body having an inner space in which the raw material powder is stored and including an outlet which is formed through the lower end thereof and through which the raw material powder is discharged; a transfer pipe to which the raw material powder discharged through the outlet is transferred and which has a region, through which the raw material powder is transferred, divided into a plurality of regions; and a slide gate unit disposed between the outlet and the transfer pipe to open or close the transfer pipe while adjusting a degree of opening of the transfer pipe.

A stackable container system configured to carry material includes at least one container having a first end and a second end, a holding area for the material, the holding area extending from the first end to the second end, a first opening at the second end, the material controllably releasable from the holding area through the first opening, and a chute that passes through the holding area, the chute extending from the first end to the second end, a first end of the chute including a receiving portion having a larger area than a combined area of the first opening and a second end of the chute.

A seed storage and dispensing bin includes a walled container having a top, a bottom opposite the top, an interior space defined between the top and the bottom and a divider dividing the interior space into first and second separate spaces each sized to receive a plurality of seeds therein. First and second openings are defined in the walled container at or near the bottom thereof, with each opening to a respective one of the first and second spaces. First and second doors are mounted to the container over the first and second openings respectively. Means are provided for moving the first door between open and closed positions thereof, and for moving the second door between open and closed positions thereof. In some embodiments, the same or different cross-sectional areas of the first and second openings may be exposed through selective movement of the first and second doors respectively.

A hopper and method for transferring raw material, which can prevent segregation due to the impact caused by falling of the raw material powder when different types of raw material powders are transferred. The hopper for a raw material powder according to one embodiment of the present disclosure includes: a hopper body having an inner space in which the raw material powder is stored and including an outlet which is formed through the lower end thereof and through which the raw material powder is discharged; a transfer pipe to which the raw material powder discharged through the outlet is transferred and which has a region, through which the raw material powder is transferred, divided into a plurality of regions; and a slide gate unit disposed between the outlet and the transfer pipe to open or close the transfer pipe while adjusting a degree of opening of the transfer pipe.

A hopper and method for transferring raw material, which can prevent segregation due to the impact caused by falling of the raw material powder when different types of raw material powders are transferred. The hopper for a raw material powder according to one embodiment of the present disclosure includes: a hopper body having an inner space in which the raw material powder is stored and including an outlet which is formed through the lower end thereof and through which the raw material powder is discharged; a transfer pipe to which the raw material powder discharged through the outlet is transferred and which has a region, through which the raw material powder is transferred, divided into a plurality of regions; and a slide gate unit disposed between the outlet and the transfer pipe to open or close the transfer pipe while adjusting a degree of opening of the transfer pipe.

The present invention is a fracking sand container having a main container having an internal cavity, said container is formed up of two sections, an upper section and two truncated pyramidal sections, a rectangular tubular frame profiles and internal reinforcements of L-profiles of equal legs supporting said container, including plus 4 channel profiles for lifting, and a structure formed by L-angles, wherein a hopper is also supported to ensure greater rigidity, two discharge openings on an underside of each of said two truncated pyramidal sections, gates positioned in said cavity, and a handwheel operatively associated with said gates, said handwheel constructed and arranged to impart improved mechanical advantage and move said gates horizontally.

An example of an apparatus is provided. The apparatus includes a first track to mount on a container along a first side of the container opening. The apparatus further includes a second track to mount on the container along a second side of the container opening. The first side is opposite the second side. In addition, the apparatus includes a frame engaged with the first track and the second track. The frame is to move along the first track and the second track between an open position and a closed position. The apparatus also includes a first panel to mounted on the frame to cover a first portion of the container opening. The apparatus further includes a second panel to mounted on the frame to cover a second portion of the container opening. The first panel is to overlap the second panel by a distance.

An example of an apparatus is provided. The apparatus includes a first track to mount on a container along a first side of the container opening. The apparatus further includes a second track to mount on the container along a second side of the container opening. The first side is opposite the second side. In addition, the apparatus includes a frame engaged with the first track and the second track. The frame is to move along the first track and the second track between an open position and a closed position. The apparatus also includes a first panel to mounted on the frame to cover a first portion of the container opening. The apparatus further includes a second panel to mounted on the frame to cover a second portion of the container opening. The first panel is to overlap the second panel by a distance.

A seed storage and dispensing bin includes a walled container having a top, a bottom opposite the top, an interior space defined between the top and the bottom and a divider dividing the interior space into first and second separate spaces each sized to receive a plurality of seeds therein. First and second openings are defined in the walled container at or near the bottom thereof, with each opening to a respective one of the first and second spaces. First and second doors are mounted to the container over the first and second openings respectively. Means are provided for moving the first door between open and closed positions thereof, and for moving the second door between open and closed positions thereof. In some embodiments, the same or different cross-sectional areas of the first and second openings may be exposed through selective movement of the first and second doors respectively.

A metering system includes a frame, first and second gates, and an actuator. The frame defines a chute configured to receive a supply of fasteners and maintain the fasteners in a line. The first and second gates are each mounted to the frame and movable to advance into the chute and retract away from the chute. The actuator is mechanically coupled to the first gate and configured to advance and retract the first gate relative to the chute. The second gate is configured to move based on the movement of the first gate so that as the first gate advances into the chute to block movement of the fasteners in the chute the second gate retracts, and as the first gate retracts away from the chute the second gate advances into the chute to block the movement of the fasteners in the chute.