A storage box that includes a container and a lid, which includes a bottom plate, a top plate, a top plate anchor and a movable latch. The bottom plate includes an arm that the height of its left section is bigger than the height of its right section, and its inclined middle section inclines from left to right. The movable latch includes a protrusion that its left section is flat and the inclined right section inclines and descends from left to right. The movable latch is designed to be positioned between the top plate and the bottom plate, in a way that the horizontal protrusion is inserted under the horizontal arm of the bottom plate and the movable latch can be moved from right to left and back.

A vacuum bag is disclosed. The vacuum bag may include a body. The body may include a plastic layer and a fabric layer. The plastic layer and the fabric layer may be welded together on at least one portion of the body. The vacuum bag may further include a seal bar and a valve.

The invention relates to a valve (4) for a flexible packaging (1), comprising a valve housing (11) to be connected to an aerating and/or venting opening (6) of the packaging and having a first opening (22) and an opposite second opening (35), and a flexible membrane (24) movable between a position which closes the first opening and a position which leaves the first opening clear. The valve is provided with guide means (28) for guiding the movement of the membrane, wherein there is space (40) in the housing adjacently of the membrane for the purpose of forming a passage between the first and second opening when the membrane takes up-its open position. The invention also relates to a flexible packaging with an aerating and/or venting opening and a valve arranged therein. The invention further relates to an assembly of an aerating and/or venting device and such a valve. The invention also relates to a method for evacuating a flexible packaging via a venting opening while making use of such a valve and a venting device connected thereto. The invention finally relates to a method for flushing a flexible packaging with gas via an aerating and/or venting opening by making use of such a valve and an aerating and/or venting device connected thereto.

Pouches and assemblies for use in sous vide cooking, and associated systems and methods are disclosed. In several embodiments, a sous vide pouch includes a sealable chamber having a sauce for cooking with a food product. The chamber can have a partition that provides a boundary a boundary between a first and second portion of the chamber to receive two food products during a sous vide cooking process. In some embodiments, the sous vide pouch can further include a vacuum valve for removing air from the chamber.

A Mason jar sealing structure, comprising a sealing cover, and a flexible part is provided on the sealing cover; the flexible part is located corresponding to position of negative pressure end of negative pressure pump; a Mason jar body, which is internally hollow, and the sealing cover is set covering opening of the upper Mason jar body; a jar cover, which is connected to the Mason jar body and is located corresponding to position of the flexible part; middle of the sealing cover is provided with an air extracting hole, and the flexible part is provided at the air extraction hole; side surface of lower part of the flexible part is provided with air outlet holes. Through designing the flexible part to be assembled on the sealing cover, the invention has advantages of easy vacuuming, easy disassembly, not easy to leak, and long sealing cycle.

Disclosed are a container cover and a vacuum preservation container. The container cover comprises a cover body and an air extraction assembly, wherein a first through hole is provided in the cover body, the air extraction assembly comprises an outer cover and an inner cover, the inner cover is arranged on an upper end of the first through hole in a sealing manner, a second through hole and a third through hole are provided in the inner cover, the second through hole is in communication with the first through hole, a first one-way valve is arranged in the second through hole, and a second one-way valve is arranged in the third through hole.

A gravity flow liquid disinfectant dispensing reservoir comprised of a tapered base and a neck portion that extends centrally from the reservoir. An aperture located on the bottom of the reservoir facilitates the dispensing of liquid (i.e., disinfectant) from the reservoir into a holding tank. In another embodiment, a closed system for dispensing a liquid disinfectant into a tank containing liquid (effluent) and controlled via vacuum. The gravity flow device introduces disinfectant to the tank as the water level rises, giving the ultimate amount of contact time for treatment of effluent. Utilizing gravity and vacuum controlled dispensing of disinfectant dispenses disinfectant continuously and automatically in real time and provides for maximum contact time for minimal pathogen survival.

It is desired to make an improved lid suitable for pails, overcoming the problem of existing complexities and leaks. The invention is achieved by a lid (300) having a lid skirt (320) provided with an inner collar (328) that engages an outer collar (222) of a sidewall (220) of a pail (200), the lid skirt (320) being provided with a fastening mechanism (330) for tightening the inner collar (328) around the sidewall (220) below the outer collar (222). Corresponding to the lid (300) a pail (200) is provided having a simplified structure that is supported mechanically by the lid (300). Furthermore, a thermally insulated compound pail is disclosed, the compound pail comprising a first inner pail (200) that is inserted into a second outer pail (200) such that a space (404) is formed between said pails (200).

A vacuum freshness preservation container that can be pressed on two sides provided in this application includes a container body and container cove. The container cover has chambers disposed symmetrically, a piston is slidably disposed in each chamber, and each chamber has an air outlet which communicates with an interior of the container body and where a first check valve is disposed. The piston is provided with an air discharge structure that communicates the chamber with an outside when the piston moves toward the first check valve, and the container cover is provided with a linkage mechanism such that the two pistons move in opposite directions. By alternately pressing pistons in two chambers, the chambers always keep in a vacuumizing state, thereby achieving a higher efficiency.

A pump mechanism for vacuum sealing an airtight cavity formed by a container and a lid, including a bore having a first one-way seal allowing air from the airtight cavity to enter the bore and blocking air inside the bore from returning to the airtight cavity and a second one-way seal allowing air inside the bore to leave the bore without returning to the airtight cavity and blocking air outside of the bore from entering the bore, a piston disposed inside the bore, and a chamber of air enclosed by the bore, the first and second one-way seals, and the piston, wherein actuation of the piston in a first direction causes air to evacuate the airtight cavity and enter the chamber through the first one-way seal, and wherein actuation of the piston in a second direction causes air to exit the chamber through the second one-way seal.