The invention is directed to an integrated plastic tray and pallet system. The system includes a molded plastic pallet having an upper surface with tray components integrally formed with the remainder of the pallet extending upward from the upper surface. A plurality of pallet feet extend downward from a lower surface of the pallet. The pallet also includes side walls extending upward from the periphery of the upper surface. The system may include additional pallet and integrated tray structures without the pallet feet, and a top cap.

A blow-molded unitary structure includes a panel having first and second panel walls and a generally hollow interior between the first and second panel walls. The structure also includes a plurality of depressions, or at least one ridge, or both the depressions and ridge to enhance the strength of the structure. The plurality of depressions is monolithically formed with the panel, recessing from the second panel wall toward the first panel wall. A depression has a side wall composed of first and second segments. Cross-sectional-wise, the first and second segments have different widths and thus collectively forms a step between the first and second segments. A ridge is also monolithically formed with the panel and includes a section, at which the width of the ridge varies along the height direction of the ridge.

A blow-molded unitary structure includes a panel having first and second panel walls and a generally hollow interior between the first and second panel walls. The structure also includes a plurality of depressions, or at least one ridge, or both the depressions and ridge to enhance the strength of the structure. The plurality of depressions is monolithically formed with the panel, recessing from the second panel wall toward the first panel wall. A depression has a side wall composed of first and second segments. Cross-sectional-wise, the first and second segments have different widths and thus collectively forms a step between the first and second segments. A ridge is also monolithically formed with the panel and includes a section, at which the width of the ridge varies along the height direction of the ridge.

A modular pallet system utilizes a plurality of modular pallets that are configured to engage along sides of the pallet to form an interconnected array of coupled pallets that may be moved by a pallet truck and wherein the individual pallets are configured for detachment and transport with a hand-truck. A quad array of coupled pallets may be formed that is about a conventional pallet size and configured to receive the two forks of a fork truck into fork truck openings. One of the modular pallets of the quad array of coupled pallets may be disengaged or disconnected by use of a hand-truck, wherein the tongue of the hand-truck extends in the fork truck opening between the feet of a pallet and engages with hand-truck notches configured on feet. An interconnecting feature of a modular pallet may include a dovetail and dovetail recess.

A modular pallet system utilizes a plurality of modular pallets that are configured to engage along sides of the pallet to form an interconnected array of coupled pallets that may be moved by a pallet truck and wherein the individual pallets are configured for detachment and transport with a hand-truck. A quad array of coupled pallets may be formed that is about a conventional pallet size and configured to receive the two forks of a fork truck into fork truck openings. One of the modular pallets of the quad array of coupled pallets may be disengaged or disconnected by use of a hand-truck, wherein the tongue of the hand-truck extends in the fork truck opening between the feet of a pallet and engages with hand-truck notches configured on feet. An interconnecting feature of a modular pallet may include a dovetail and dovetail recess.

Disclosed is a container cover (1) for use in cooperation with a container (100), wherein the container (100) comprises a bottom (4) and side plates (2), the container cover (1) has four corners (10), each of which is provided with a position limiting protrusion (11), and the position limiting protrusion (11) protrudes from an upper surface of the container cover (1) integrally; and at least one position limiting protrusion (11) is provided with a locking means (3), which is used to lock the container cover (1) and the container (100). The structure provides the locking means of the cover and a container body on a stacking limiting structure without occupying container space therebelow, and meanwhile, simple operation and good structural strength are achieved.

Disclosed is a container cover (1) for use in cooperation with a container (100), wherein the container (100) comprises a bottom (4) and side plates (2), the container cover (1) has four corners (10), each of which is provided with a position limiting protrusion (11), and the position limiting protrusion (11) protrudes from an upper surface of the container cover (1) integrally; and at least one position limiting protrusion (11) is provided with a locking means (3), which is used to lock the container cover (1) and the container (100). The structure provides the locking means of the cover and a container body on a stacking limiting structure without occupying container space therebelow, and meanwhile, simple operation and good structural strength are achieved.

The invention relates to a system of stackable open-top containers. The system comprises male and female containers that can be alternately stacked, either in upright or inverted position. When the system contains containers that are stacked in inverted position on top of upright container, substantial space saving is obtained by the system. The invention also provides male and female containers that are useful in the system of containers.

The invention relates to a system of stackable open-top containers. The system comprises male and female containers that can be alternately stacked, either in upright or inverted position. When the system contains containers that are stacked in inverted position on top of upright container, substantial space saving is obtained by the system. The invention also provides male and female containers that are useful in the system of containers.

A continuously extruded unitary blank (CUBE) has a top, a bottom, two sides and at least one webbing there between parallel to the two sides. The CUBE has a front cut end and a rear cut end which define two open face channels to accommodate the forks of a fork lift and pallet jack. Two spaces are manufactured in the two sides and in the at least one webbing to accept a lateral insertion and a lateral removal of the forks. Chamfers are manufactured in edges of the cutouts to facilitate the insertion and the removal of the forks from the pallet. Chamfers are also manufactured in the front and rear cut ends to facilitate accommodation of the forks. Voids are manufactured in the bottom to allow pallet jack wheels to pass into the pallet and rest on a surface for a lifting of the pallet from the surface.