A straw lid valve assembly includes a cap, a spout, and a valve member. The cap connects with a drinking vessel and includes valve receiving passage. The spout connects with the cap and pivots between a drinking position and a closed position. The spout includes an inner passage that is in fluid communication with the drinking vessel when in the drinking position and is closed off when in the closed position. The valve member is receivable in the cap and includes a drink passage and a vent passage in fluid communication with the drinking vessel when the cap is connected with the drinking vessel and the valve member is received in the cap. The valve member is receivable in the valve receiving passage such that an uppermost surface of the valve member is exposed to ambient when the spout is in the drinking position and the valve member is received in the cap.

A thief hatch assembly for a storage tank includes a housing and a cover that rests on an upper surface of the housing to seal and maintain a pressure within the storage tank. The thief hatch cover is configured to open at a predetermined set pressure to relieve excess pressure from the storage tank. The thief hatch assembly is attached to the storage tank using blind threaded mounting holes to prevent escape of gases from the storage tank through the mounting holes. In one embodiment, the blind threaded holes are provided in a flange adapter that mounts between the thief hatch housing and the storage tank. In another embodiment, the blind threaded holes are provided in a flange adapter that is welded to the storage tank. In another embodiment, the blind threaded holes are provided in the base of the thief hatch housing. Seals are provided between the mounting surfaces.

A thief hatch assembly for a storage tank includes a housing and a cover that rests on an upper surface of the housing to seal and maintain a pressure within the storage tank. The thief hatch cover is configured to open at a predetermined set pressure to relieve excess pressure from the storage tank. The thief hatch assembly is attached to the storage tank using blind threaded mounting holes to prevent escape of gases from the storage tank through the mounting holes. In one embodiment, the blind threaded holes are provided in a flange adapter that mounts between the thief hatch housing and the storage tank. In another embodiment, the blind threaded holes are provided in a flange adapter that is welded to the storage tank. In another embodiment, the blind threaded holes are provided in the base of the thief hatch housing. Seals are provided between the mounting surfaces.

A drinking vessel having a cup with a removable lid having an inlet-outlet opening which receives an elastic straw-vent assembly having a flexible tubular straw and an air passageway forming a vent opening. A cover movably mounted on top of the lid, shiftable between a closed and an open position, with an inward surface of the cover forming fluid tight seal with the vent opening when the cover is in the closed position. In the closed position the cover engages the straw, folding the straw against the lid to seal the straw passageway, and in the open position, the straw fluid passageway and the vent opening are unobstructed by the cover. A removeable elastic straw-vent assembly is also disclosed having a tab to be grasped by the user for easy removal for cleaning.

A drinking vessel having a cup with a removable lid having an inlet-outlet opening which receives an elastic straw-vent assembly having a flexible tubular straw and an air passageway forming a vent opening. A cover movably mounted on top of the lid, shiftable between a closed and an open position, with an inward surface of the cover forming fluid tight seal with the vent opening when the cover is in the closed position. In the closed position the cover engages the straw, folding the straw against the lid to seal the straw passageway, and in the open position, the straw fluid passageway and the vent opening are unobstructed by the cover. A removeable elastic straw-vent assembly is also disclosed having a tab to be grasped by the user for easy removal for cleaning.

Disclosed are a container bottle joint and a container bottle assembly. The container bottle joint includes: a cover body comprising a water inlet pipeline and a water outlet pipeline extending upper and lower direction; a water inlet valve including a first spool, a first elastic member and a first sealing member, in particular the first spool is slidably arranged in the water inlet pipeline from top to bottom, and an upper end of the first spool is connected with the first sealing member; the first elastic member is arranged in the water inlet pipeline, and an upper end of the first elastic member is elastically pressed against a lower end of the first sealing member to elastically squeeze the first sealing member to move upward; and a water outlet valve including a second spool, a second elastic member and a second sealing member.

Disclosed are a container bottle joint and a container bottle assembly. The container bottle joint includes: a cover body comprising a water inlet pipeline and a water outlet pipeline extending upper and lower direction; a water inlet valve including a first spool, a first elastic member and a first sealing member, in particular the first spool is slidably arranged in the water inlet pipeline from top to bottom, and an upper end of the first spool is connected with the first sealing member; the first elastic member is arranged in the water inlet pipeline, and an upper end of the first elastic member is elastically pressed against a lower end of the first sealing member to elastically squeeze the first sealing member to move upward; and a water outlet valve including a second spool, a second elastic member and a second sealing member.

An apparatus provides a water bottle mouthpiece attachment which can filter microplastics and other contaminant substances from bottles, particularly disposable plastic water bottles. The filter of the apparatus includes a filter housing that is attached to a cap that fits inside a common plastic bottle. Soft rubber rings, tapering from to radially larger on the top to radially smaller on the bottom in a generally conical fashion, ensure a watertight fit to the inside opening of any drinking bottle. A friction closing/opening spout at the top of the filter enables selective opening of the bottle and prevents accidental spillage of bottle contents. The filter housing is also offset from the center, giving space to an air valve that allows air to enter the bottle without disturbing the flow of water from the bottle, thus providing optimal lamellar flow without allowing fluid to escape through the air valve during consumption.

An apparatus provides a water bottle mouthpiece attachment which can filter microplastics and other contaminant substances from bottles, particularly disposable plastic water bottles. The filter of the apparatus includes a filter housing that is attached to a cap that fits inside a common plastic bottle. Soft rubber rings, tapering from to radially larger on the top to radially smaller on the bottom in a generally conical fashion, ensure a watertight fit to the inside opening of any drinking bottle. A friction closing/opening spout at the top of the filter enables selective opening of the bottle and prevents accidental spillage of bottle contents. The filter housing is also offset from the center, giving space to an air valve that allows air to enter the bottle without disturbing the flow of water from the bottle, thus providing optimal lamellar flow without allowing fluid to escape through the air valve during consumption.

A fluid device generally comprises a staging reservoir which may receive a volume of fluid flowing from a primary reservoir via a coupler upon operation of an actuator, wherein the staging reservoir is usable to measure fluid within the device in order to dispense a desired amount of fluid.