An oil tank cap is adapted to be removably engaged with an oil inlet of an oil tank. The oil tank cap includes a cap body that is one-piece, that is plastic, and that includes a cap portion adapted to be disposed outside the oil inlet, and a plug portion extending from the cap portion along a central axis of the cap body and adapted to extend into the oil inlet. The plug portion has a surrounding surface that surrounds the central axis of the cap body, a base surface, an accommodating slot extending through the surrounding surface, and at least one recess formed in the base surface, extending towards the cap portion, and being isolated from the accommodating slot. The oil tank cap further includes a spring strip that has a positioning portion disposed in the accommodating slot, and two abutting portions extending outwardly of the accommodating slot.

A vacuum storage system (40) for storing an article, comprises a sealable outer chamber (30) and a sealable inner chamber (20). The sealable outer chamber (30) has an evacuation valve (21) for connection to a suction device (48) for evacuation of said outer chamber (30). The sealable inner chamber (20) is adapted to receive said article and has a one-way valve (13) in communication with the outer chamber (30). The one-way valve (13) is adapted to open upon the application of suction to the outer chamber (30), thereby to enable evacuation of said inner chamber (20), but to close upon discontinuation of said suction.

Plastic pressure container including a main body portion, a finish portion, and a closure assembly. The main body portion defines an interior space. The finish portion is unitary with the main body portion and defines a mouth in communication with the interior space. The finish portion has an inner surface, an outer surface and an upper rim proximate the mouth. The inner surface has an inner undercut defined therein proximate the upper rim. The outer surface has an outer undercut defined therein proximate the upper rim. The closure assembly is mounted to the finish portion in engagement with both the inner undercut and the outer undercut.

A cap, a method of using a cap, and a system for using the cap. The cap is capable of being fitted to a bottle. The cap includes a transfer port; and a vent port. The vent port includes a membrane and a valve.

A food and beverage fermentation device including a hollow tapered body, a lip, a base, and at least one aperture. The hollow tapered body may have a wide end and an opposing narrow end adapted to be received by a container. The lip may be located along the wide end and adapted to rest upon a rim of the container. The base may extend across an inner region defined by a wall of the hollow tapered body. At least one aperture extending through the wall.

Disclosed herein is a barrel lid for facilitating ventilating of a barrel, in accordance with some embodiments. Further, the barrel lid comprises ports, pumps, a duct, and valves. Further, an inlet pump of the pumps is configured for drawing external air into an interior space of the barrel from an exterior space of the barrel through an inlet port of the ports and an outlet pump of the pumps is configured for expelling internal air from the interior space into the exterior space through an outlet port of the ports. Further, the duct is coupled with the inlet port. Further, openings of the duct are configured for creating airflows in the interior space for ventilating the interior space based on the drawing and the expelling. Further, the valves are configured for transitioning between an open state and a closed state for openably closing the ports.

Disclosed are a beverage container and a cover unit. The beverage container includes a container body having an opening at an upper portion; and a cover unit mounted on the opening of the container body. The cover unit includes: a cover body detachably mounted on the container body; a ventilation pipe mounted on an inner side of the cover body and having a ventilation path penetrating from an upper end to a lower end; and a pressure regulating valve arranged between the upper end of the ventilation pipe and the cover body and composed of an elastic member covering a ventilation hole on an upper end of the ventilation path. The cover body is mounted on the container body, a gap between the ventilation pipe and the opening is sealed, and the pressure regulating valve is clamped between the cover body and the ventilation pipe through a specified pressing force.

A drink and mist bottle cap is detachably attachable to a bottle to enable a person to produce a mist from a pump and mist nozzle and also drink from a drink spout. A drinking spout has a drink spout cap that is detachably attachable over the drinking spout to seal the liquid contents within the bottle when not drinking form the bottle. The drink and mist bottle cap may also have an anti-backwash valve that is configured to prevent backwash from flowing back into the interior of the bottle and an ultraviolet light configured to produce a disinfecting ultraviolet light within the bottle, and a pressure relief valve to allow pressure equalization when there is a pressure differential between the interior of the bottle and the exterior of the bottle.

The receptacle including stacking lugs to help reduce vacuum and friction when de-nesting the receptacles. The receptacle including a lid that helps when storing certain types of goods and/or serves as a seat. A septum or receptacle molded into the lid to allow for injection of inert gases or flushing headspace.

An apparatus for preserving carbonated beverages or other liquids features a container, and an impermeable piston that divides the container interior into a lower chamber beneath the piston for storage of a liquid, and an upper chamber above the piston. An axially extendable and collapsible conduit has a lower end sealed to the piston around a flow opening that passes axially therethrough, and an upper end connected and sealed to an upper portion of the container around a mouth opening therein. A valve mechanism features a closure member movable between open and closed positions that respectively open and close the flow opening in the piston. Opening of the closure member allows pouring of the liquid out of the container via the flow opening, the conduit and the mouth, and closing of the closure member seals the lower chamber closed in order to preserve the liquid.