A container cover for storage container includes a rotary device, an outer cover member, an inner cover member, a first guide block, second guide block, a pumping piston and a piston seat so arranged that when the rotary device is driven by a user to rotate the first guide block, guide rods of the first guide block are moved along a first continuous wave-shaped track of the second guide block, causing the second guide block and the pumping piston to move alternatively up and to further pump air out of the storage container through an air-pimping hole of the piston seat to create a negative pressure. Further, a first spring member an upper rail seat can be provided to balance the movement of the pumping piston and to stabilize the rotation of the first and second guide blocks. A relief valve rod can be selectively used for giving a visual indication indicative of the presence of a negative pressure in the storage container.

A container cover for storage container includes a rotary device, an outer cover member, an inner cover member, a first guide block, second guide block, a pumping piston and a piston seat so arranged that when the rotary device is driven by a user to rotate the first guide block, guide rods of the first guide block are moved along a first continuous wave-shaped track of the second guide block, causing the second guide block and the pumping piston to move alternatively up and to further pump air out of the storage container through an air-pimping hole of the piston seat to create a negative pressure. Further, a first spring member an upper rail seat can be provided to balance the movement of the pumping piston and to stabilize the rotation of the first and second guide blocks. A relief valve rod can be selectively used for giving a visual indication indicative of the presence of a negative pressure in the storage container.

A container cover for storage container includes a rotary device, an outer cover member, an inner cover member, a first guide block, second guide block, a pumping piston and a piston seat so arranged that when the rotary device is driven by a user to rotate the first guide block, guide rods of the first guide block are moved along a first continuous wave-shaped track of the second guide block, causing the second guide block and the pumping piston to move alternatively up and to further pump air out of the storage container through an air-pimping hole of the piston seat to create a negative pressure. Further, a first spring member an upper rail seat can be provided to balance the movement of the pumping piston and to stabilize the rotation of the first and second guide blocks. A relief valve rod can be selectively used for giving a visual indication indicative of the presence of a negative pressure in the storage container.

A container cover for storage container includes a rotary device, an outer cover member, an inner cover member, a first guide block, second guide block, a pumping piston and a piston seat so arranged that when the rotary device is driven by a user to rotate the first guide block, guide rods of the first guide block are moved along a first continuous wave-shaped track of the second guide block, causing the second guide block and the pumping piston to move alternatively up and to further pump air out of the storage container through an air-pimping hole of the piston seat to create a negative pressure. Further, a first spring member an upper rail seat can be provided to balance the movement of the pumping piston and to stabilize the rotation of the first and second guide blocks. A relief valve rod can be selectively used for giving a visual indication indicative of the presence of a negative pressure in the storage container.

The disclosure relates to a convenient lid comprising a housing, a lid opening, a press plate, a button, an insertion plate, a guide plate and a threaded body, the lid opening and the threaded body being provided on the lower part of the housing, the side of the lid being provided with a concave cavity, a fixing body and a guide column being provided in the concave cavity, a switch device and a security device being provided on the fixing body and the guide column, a guide plate, an insertion plate and a press plate being provided inside the lid, a concave ring and a guide strip being provided on the outside of the lid opening, a convex ring, a guide slot and a latch being provided on the inner side of the threaded body, ribs and threads being provided on the outer side of the threaded body.

The present invention is directed to a portable container for a beverage, such as beer, from a Sixth barrel or Cornelius keg. The portable container is specifically designed for storing, cooling, transporting and dispensing a beverage, such as beer. The portable container has a self-contained container of CO.sub.2, a regulator, and a tap for the keg.

The present invention relates to a plastic tank for the storage and transport of bulk materials, such as solids, liquids or semi-liquids, wherein said tank comprises a main body (1) with tapered sidewalls and a built-in pallet base (18) with four legs, a main rectangular lid (2), a secondary round lid (3) having a vent cap with a gas valve (4) and a bottom discharge opening (17). Said tanks are made of food grade HDPE of a special composition molded in one-piece using an injection molding process, and are nestable, when empty for shipment purposes and stackable, when full for storage purposes.

A food storage container is disclosed. The food storage container has a one or more water tight compartments. The food storage container can have an insulated component that can maintain food at substantially constant temperature over a relatively long period of time. The insulated component can be secured to the food storage container with a securing insert that prevents the insulated component from moving or rotating when in use. The insulated component can be removed. The insulated component can have a lid with an opening lever feature that makes it easy for users to open the lid. The food storage container can have a removable divider that can be used to create a plurality of smaller compartments. The food storage container can have a latch and hinge assembly to close the lid and tray. The food storage container can have an integral handle to provide a carrying solution.

A food storage container is disclosed. The food storage container has a one or more water tight compartments. The food storage container can have an insulated component that can maintain food at substantially constant temperature over a relatively long period of time. The insulated component can be secured to the food storage container with a securing insert that prevents the insulated component from moving or rotating when in use. The insulated component can be removed. The insulated component can have a lid with an opening lever feature that makes it easy for users to open the lid. The food storage container can have a removable divider that can be used to create a plurality of smaller compartments. The food storage container can have a latch and hinge assembly to close the lid and tray. The food storage container can have an integral handle to provide a carrying solution.

Disclosed is a closure with a first body of a first metal with a first electrode potential, and a second body of a second metal with a second electrode potential different than the first electrode potential. The first and second bodies are joined together along a connection interface between the first and second bodies to form the closure separating a first space on a first side of the closure from a second space on a second side of the closure. The connection interface extends from the first side of the closure to the second side of the closure, and includes a close-coupled portion and a seal portion between the first side of the closure and the second side of the closure. A polymer film is disposed between the first and second bodies along the close-coupled portion of the connection interface.