Abstract: A one-way valve to control the release of pressurized gas from within a sealed container through a venting aperture. The valve comprises a layer of flexible material having an upper and a lower surface with a portion of the upper surface adhered to a surface of the container and overlaying the venting aperture. A channel is defined by a portion of the container and an adjacent portion of the flexible material which has not been adhered to the container. The channel is in communication with the venting aperture and an exhaust gas aperture in the layer of flexible material. The channel is operable between a closed and an open configuration upon gas pressure within the container exceeding a predetermined limit. When open the channel permits gas to flow from said container into the exterior atmosphere. When closed the channel restricts the flow of gas between the venting aperture and exhaust gas aperture.

Abstract: Provided is a catalyst part for a lead-acid battery, the catalyst part being capable of reducing gas release from an electrolyte solution and a decrease in electrolyte solution due to the leakage, thus providing a lead-acid battery having a long life. Also provided are a ventilation filter, a ventilation plug, and a lead-acid battery each including the catalyst part. A catalyst part for a lead-acid battery, including a catalyst layer including a catalyst to accelerate a reaction for generating water or water vapor from oxygen and hydrogen, and an arrangement through which at least part of the water or water vapor is condensed and/or flowed back to the inside of the battery.

Abstract: The venting plug is adapted to be mounted around an end of a hose intended to be connected at the other end to an opening provided in a case of an automotive component, said plug including a cylindrical peripheral sidewall around a main axis X closed by an end wall, a central rod member projecting axially from an inner surface of the end wall and being provided with a venting internal channel opening radially at least at the base of the rod member in the mounted position of the hose.

Abstract: The method for forming from a round shaped cylinder to a square shaped cylinder or flat sheet which can be inserted in a square or rectangular shape metal pipe includes initiating turning of a heated mandrel, extruding heated polymer, wrapping while compressing a first layer of heated polymer or mesh, disposing a mesh or polymer layer over the cylinder encapsulating the cylinder on the turning mandrel while simultaneously laying a second layer of heated polymer over the turning mandrel and compressing the layer of heated polymer into the mesh layer and the mesh layer into the first layer of heated polymer simultaneously, and repeating the layering of the heated polymer and mesh layer until a desired wall thickness is reached.

Abstract: Self-adhesive label valves are disclosed having release chimneys in correspondence of a plurality of intersection cuts in a membrane-island of film (tape) carrier (C) with cuts made in the overlying self-adhesive label made of polymeric film (E) with an adhesive layer. All are inscribed within (i.e. inside) the perimeter of the membrane-island, and are destined to overlie so as to occlude pre-formed release openings in the packaging film of heatable food, and ensure in an outstandingly reliable manner a gradual release of vapors while heating, without causing an undesirable collapse of the packaging film.

Abstract: A liquid container includes a brim forming an opening into a liquid reservoir chamber formed in the cup. A lid is coupled to the brim to form more than one seal with the container. The lid includes lid-removal blocker walls arranged to engage undercuts formed in the cup to retain the lid in a mounted position on the cup closing the opening into the liquid reservoir chamber.

Abstract: A closure (20, 20A) is provided for a container that has an opening to the container interior wherein contents may be stored. The closure (20, 20A) includes the following: (A) a closure body (30, 30A) defining (i) at least one pour aperture (50) that can communicate with the container opening and that can accommodate pouring out of the contents through the pour aperture (50), and (ii) at least one vent aperture (60) that can. communicate with the container opening and that can accommodate the in-venting of ambient atmosphere through the vent aperture into the container; and (B) a lid (32, 32A) for closing the closure (20, 20A). The pour aperture (50) has a curved configuration extending laterally on each side of a central axis line (A) that bisects the closure body (30), and the vent aperture (60) is further defined by a downwardly extending vent tube.

Abstract: The present invention relates to containers and methods suitable for uses such as liquid hot-fill processes. More specifically the invention relates a containers having gas permeable vents with an integral sealing means that is externally activatable by non-mechanical means to effect hermetic sealing of the containers after filling.

Abstract: A cap for a drain hose and a plurality of bottles with different opening sizes is provided. The cap includes a main body and an extension body. The main body includes a main sleeve, a sleeve for drain hose and a leakage-proof part, wherein the main sleeve is for engaging with a first bottle, the sleeve for drain hose is for engaging with the drain hose, and the leakage-proof part is for closely sealing the opening of the first bottle. The extension body is formed integrally with the main body and extends outwardly from the main body, the extension body including an extension sleeve for engaging with a second bottle, the opening size of the second bottle being larger than the opening size of the first bottle.

Abstract: Provided is a cup lid including: a cover portion that covers an upper opened portion of a cup; a coupling portion that is formed at edges of the cover portion and is coupled to the upper opened portion of the cup; a beverage guide portion that is formed between the cover portion and the coupling portion, is elevated to have a predetermined height, provides a cooling space of a beverage and guides the beverage to a user's mouth; and beverage discharge portions that are formed at the cover portion and the beverage guide portion, discharge the beverage in the cup to be accommodated in the cooling space or cause all of the beverage that remains in the cup to be discharged to a portion that faces the cooling space.

Abstract: An accessory for a drinking vessel is disclosed as including a body (102) with a passageway allowing air or liquid to pass through, the body including a first wall (104a) and a second wall (104b) which are opposite to each other, and a valve (110) in the passageway, the valve (110) including a first valve member (110a) and a second valve member (110b), in which both the first and second valve members (110a, 110b) are integrally formed with the first and second walls, and each of the first and second valve members (110a, 110b) includes respectively a first surface (111a, 111c) and a second surface (111b, 111d) which are opposite to each other, in which the first surfaces of the first and second valve members face generally a first direction, and the second surfaces of the first and second valve members face generally a second direction which is opposite to the first direction, and the first valve member is deformable between a first configuration in which at least part of the second surface of the first valve

Abstract: A cover for covering an opening of a container for a food stuff includes a substantially flat cover body including at least one aperture and at least one substantially flat flap. The at least one flap including a linear proximal end configured to connect with the cover body and allow the at least one flap to rotate with respect to the cover body. A lower surface of the at least one flap includes a protrusion configured to close the at least one aperture when the at least one flap is at a first position in which the at least one flap is in parallel with the cover body. The cover body and the at least one flap are integrally formed by a co-injection molding. The container and cover are suitable for heating a food stuff in a microwave.

Abstract: A canister including a body portion containing an end wall and a cylindrical wall extending from the end wall to an upper cylindrical edge portion thereof, and a cap, securable to the body portion, containing a circular top wall with an inner surface and an outer surface and a cylindrical outer wall secured to the top wall containing an inner portion and an outer portion, wherein one or more support elements are secured to the inner surface of the top wall, thereby forming two ends of the support element and also thereby forming a gap between the inner portion of the cylindrical outer wall of the cap and each end of the support element, whereby at least a portion of the upper cylindrical edge portion of cylindrical wall of the body portion is secured within the cap.

Abstract: A vacuum storage container having a container body, a check valve and a lid with an outer rim surrounding a diaphragm. A vacuum pump is engagable with the check valve to remove air from the interior of the container to create a vacuum in the container. The diaphragm is pushed inward by atmospheric forces upon removal of the air until the diaphragm touches and conforms to at least upper exposed surfaces of the contents of the container. The storage container aids in preventing degradation of the contents of the container by maintaining the contents free from the degrading effects of air and by substantially immobilizing the contents during movement of the container to protect the contents from breakage and bruising.

Abstract: The present invention relates to a drinking apparatus including a vent system that removably connects to a drinking container. The vent system is used to form a variety of leak free and essentially vacuum-free drinking containers. The vent system, includes a closure member and a valve, and may be used with an anti-bubble tube. The closure member may be a single member or may be formed of two portions. The valve may be coupled thereto or integrally formed therewith. The anti-bubble tube and valve function as a diving bell to generally prevent liquid from entering the anti-bubble tube.

Abstract: An anti-overflow pot lid is provided, including: a lid body configured to be curved to protrude, and to cover an opening of a pot body; a recessed portion configured to be recessed downward from the lid body; one or more inlet holes configured to be formed at an upper part of the recessed portion and let in steam generated in the pot body; and one or more outlet holes configured to be formed at a lower part of the recessed portion and let out water drops obtained by liquefying the steam into the pot body. The anti-overflow pot lid can effectively prevent rattling and spillage or leakage.

Abstract: A closure for a container for sealing the contents of the container includes a cap assembly having a first portion that is insertable into a dispensing opening formed in the container and a second portion that is rotatable relative to the first portion. The cap is positionable between at least a dispensing position in which the contents of the container can be dispensed through the cap assembly and a closed position in which the contents are sealed in the container from atmospheric conditions. The closure also includes a rollable, flexible liner for receiving and holding the contents, the liner being coupled to the cap assembly and in fluid communication therewith so that the liner can initially receive the contents and later dispense the contents through the cap assembly.

Abstract: In some embodiments, a cooking utensil comprises a pot with a lid that divides a cooking chamber in the pot from a condensing chamber above the lid. To prevent boil-over, one or more openings in the lid and/or openings radially between the lid and the pot convey bidirectional flow between the cooking and condensing chambers. Boiling liquid/vapor foam from the cooking chamber flows upward through the opening to the condensing chamber. Upon subsequently flowing across an upper surface of the lid, the liquid/foam condenses and then returns through the opening to the cooking chamber. In some examples, the cookware includes both a mechanical seal and a liquid seal between the lid and the pot. In some embodiments, a single opening in the lid maximizes the lid's condensing surface while still allowing sufficient flow between the cooking and condensing chambers. Such a single opening also makes the cookware easy to clean.

Abstract: The present utility model discloses a universal gasoline engine fuel tank cover including an outer shell, an inner shell and a sealing cover located on the upper surface of the inner shell, wherein the outer shell and the inner shell are connected through a ratchet mechanism and a limiting mechanism, the inner shell having a partition I and a partition II disposed in its upper cavity to divide the upper cavity into a first adsorption chamber, a second adsorption chamber and a third adsorption chamber, the first adsorption chamber and the second adsorption chamber having fine carbon particles disposed therein, the third adsorption chamber having a cylindrical foam disposed therein, the bottom of the partition I being disposed with an air hole I connecting the third adsorption chamber to the fuel tank, and the bottom of the first adsorption chamber being disposed with an air hole II causing the first adsorption chamber to be connected to the atmosphere outside.

Abstract: A container closure comprises an annular region forming a counterface against which a gas permeable, liquid impermeable sealing element may be applied so as to urge the sealing element into sealing engagement with the rim of a container opening. The annular region comprises a gas pathway from an interior space opposite the container opening to the exterior of the annular region. The gas pathway may be of closed cross-section extending through the annular region. Alternatively the gas pathway may be of open-sided cross-section and provided in the counterface. Yet alternatively the annular region may comprise a washer, with the gas pathway provided at least partly in the washer and/or at least partly in the remainder of the annular region. A gas permeable, liquid impermeable sealing foil for bonding to a container rim is also disclosed.

Abstract: Embodiments of the present invention generally relate to a leak proof drinking cup including a valve assembly and a removable lid with a drinking spout and a vent. The valve assembly includes a drinking valve, a venting valve, or both. When in use, the valve assembly engages with the lid to prevent leaks or spills and to permit the flow of air into the cup. When not in use, the valve assembly disengages from the lid and the valve is open to facilitate proper cleaning of the valve assembly.

Abstract: The present invention is directed to a steam ventilation system for providing an easy way to release steam from a container.

Abstract: A compressible container (200) has a cap (100) configured to engage therewith. The cap (100) includes a first valve (150), preferably in the form of first and second disks (112,120), one above another, each disk having at least one hole (113,122) therethrough. The disks are rotatable with respect to one another The holes (113,122) of the first and second disks (112,120) align in a first position to create channel therethrough and misalign in the second position to close the channel. The cap (100) may also include a second valve (130) connected to the channel. The second valve (130) may comprise a ball (134) inside a conic section tube (132). The ball (134) is designed to float on the liquid (300) so that any liquid (300) attempting to exit the container cap (100) will be prevented from doing so as the second valve (130) will be closed when the liquid forces the ball (134) into engagement with the conic section tube (132).

Abstract: The present utility model discloses a universal gasoline engine fuel tank cover including an outer shell, an inner shell and a sealing cover located on the upper surface of the inner shell, wherein the outer shell and the inner shell are connected through a ratchet mechanism and a limiting mechanism, the inner shell having a partition I and a partition II disposed in its upper cavity to divide the upper cavity into a first adsorption chamber, a second adsorption chamber and a third adsorption chamber, the first adsorption chamber and the second adsorption chamber having fine carbon particles disposed therein, the third adsorption chamber having a cylindrical foam disposed therein, the bottom of the partition I being disposed with an air hole I connecting the third adsorption chamber to the fuel tank, and the bottom of the first adsorption chamber being disposed with an air hole II causing the first adsorption chamber to be connected to the atmosphere outside.

Abstract: A device (1) for housing a scientific sample comprising at least one sample well (2) and an on-board buffering substance (3) wherein the onboard buffering substance (3) at least partly surrounds the sample well (2). The on-board buffering substance (3) may be in the form of a matrix, such as a gel-like matrix. The device (1) may further comprise an insulating means. Also described is a substance for use in culturing and/or assaying a sample whereby the substance provides atmospheric and thermal buffering. The invention further provides a lid for a single-well or multi-well sample plate, the lid being configured to facilitate delivery of a sample through the lid into a well, and for sealing the well. The lid comprises moveable portions (52, 53) that have at least one orifice (54, 57) formed through the moveable portions (52, 53) such that a conduit is formed by alignment of the orifices (54, 57) of both the lid portions (52, 53).

Abstract: A protective device attached to a pressure release valve of a lid of a pressure cooker, including a dome-shaped mesh casing body, a ring-shaped reinforcing frame fixed to the upper edge of the mesh casing body, a bridge plate provided on the reinforcing frame with both ends thereof fixed to the reinforcing frame so that the bridge plate diametrically crosses the ring-shaped reinforcing frame keeping distance from the bottom of the mesh casing body, and an attachment member of substantially a hollow cylinder provided at the center of the bridge plate.

Abstract: A protective device for a wall region to be protected, includes a collar which has recesses penetrating the collar and is disposed around the wall region to be protected in an intended configuration of the protective device. A protective cap includes a base and a casing, which extends from the base substantially perpendicularly up to a casing edge and has recesses penetrating the casing. The casing recesses extend from the casing edge in the direction of the base of the protective cap. Casing sections are formed between the recesses. In the intended configuration of the protective device, the casing is disposed between the collar and the wall region to be protected, and one of the casing sections is disposed between each collar recess and the wall region to be protected so that a free linear connection is prevented between the respective collar recess and the wall region to be protected.

Abstract: A battery pack thermal management system is provided that is comprised of at least one enclosure failure port integrated into at least one wall of a battery pack enclosure, where the enclosure failure port(s) remains closed during normal operation of the battery pack, and opens during a battery pack thermal runaway event, thereby providing a flow path for hot gas generated during the thermal runaway event to be exhausted out of the battery pack enclosure in a controlled fashion.

Abstract: A control device module for a motor vehicle includes a control device that has a closed housing in which a first internal pressure prevails, and at least one connecting device for coupling a connecting element of an electrical cable. A closed space is defined in the coupled state between the connecting device and the connecting element, in which closed space a second internal pressure prevails. The control device also includes a pressure compensating device for adapting the first and second internal pressures to an external pressure that acts on the control device module from outside.

Abstract: A venting device that may be used directly with a container or via a vent cap for a container, includes a venting mechanism having one or more collapsible dome structures and an absorbent material to prevent leakage of liquid or flowable contents from within the container. The construction relies on a combination of venting domed structures and expandable absorbent material to seal one or more openings in a container and or cap.

Abstract: A thermal management system is provided that minimizes the effects of thermal runaway within a battery pack. The system is comprised of a multi-sided, substantially airtight battery pack enclosure configured to hold a plurality of batteries, where at least one side of the battery pack enclosure includes at least one cavity. An inner wall of the enclosure includes a plurality of perforations configured to pass gas from within the enclosure to the cavity within the at least one side member. The system is further comprised of at least one gas exhaust port integrated into an outer wall of the enclosure and configured to pass gas from within the cavity of the enclosure side member to the ambient environment when one or more batteries contained within the battery pack undergo thermal runaway.

Abstract: Improved no-spill drinking products providing safer no-spill caps, stronger and more durable no-spill caps, no spill caps that are particularly suited to adults, and no-spill caps that are particularly suited to children.

Abstract: Described is a bottle having a cap with an atmospheric venting means comprising a venting receptacle and a porous thermoplastic plug. The porous plug can be held in place with a retaining ring.

Abstract: An oil fill cap for an internal combustion engine replaces a standard cap and provides separation of air and oil in a separation zone within the cap body. The cap body defines a plurality of passages therethrough, including an upstream passage, and first and second downstream passages meeting at a separation junction. The cap body defines a separation zone at the separation junction and receiving the air/oil mixture from the engine through the upstream passage, and sending separated air to the first downstream passage, and sending separated oil to the second downstream passage.

Abstract: A container (1, 2) for storing and dispensing a liquid, the container including an access port (16) having a frangible seal (18) for allowing contained liquid to be dispensed. A vent (19) permeable to vapour but impermeable to liquid is also provided so that vapour may be vented from the interior of the container.

Abstract: A fuel tank cap for use with a fuel storage tank includes: a vapor storage receptacle; a purge path in fluid communication with the vapor storage receptacle; and a liquid discriminating membrane configured to be disposed at least in part between the vapor storage receptacle and fuel in the fuel storage tank. A fuel storage system includes: a fuel storage tank; a fill inlet connected to the fuel storage tank; and a fuel tank cap. The fuel tank cap includes: a vapor storage receptacle; a purge path in fluid communication with the vapor storage receptacle; and a liquid discriminating membrane configured to be disposed at least in part between the vapor storage receptacle and fuel in the fuel tank.

Abstract: The invention concerns a vent cap for oil tanks of machines and motor equipment, comprising a cup (1), equipped with means of engagement (4) with the seat of the tank filler, and a lid (12) mounted on the cup and which snaps thereon. Between the cup (1) and the lid (12) there is a gap allowing the vapor outflow from the tank to the outer environment or viceversa. According to the invention, said lid (12) comprises two cylindrical diaphragms (12b, 12c), concentric to the cap axis and which, in cooperation with the cup (1), form labyrinth means for the flow of vapors and air. Cup (1) also carries a guide (7) supporting a level rod (8), consisting of a central, cylindrical main body (7b), wherefrom ribs (7a) for anchoring to the cup (1) depart. Guide (7) extends, at the top, into two flexible flaps (7c), provided with means of engagement (10) of the rod (8).

Abstract: The invention is a vent for use with a container, such as commercial steel pails and drums, and a method for venting containers. The vent has a cap seal with one or more semipermeable membranes covering an orifice in the cap seal. The membrane prevents the passage of at least one atmospheric component, but allows the free passage of air. When a product is filled into the container at an elevated temperature and cools, a vacuum is formed within the container. The resulting vacuum opens a vacuum release device in the vent and pulls air through a hole in the cap seal, which is protected by a micro-porous membrane. The venting of air into the container relieves the vacuum without damage to the container or the product within the container.

Abstract: A vessel (1), in particular for containing paint, comprising a reservoir (2) and a closure lid (3) which reservoir (2) is provided for being closed by said closure lid (3), which closure lid (3) is applicable on top of a liquid application tool (4), said vessel (1) having an air inlet comprising a plurality of openings (9), said closure lid (3) comprises a conically shaped part, characterised in that said air inlet being provided with a closure valve made of flexible elastomer material, said valve being resiliently mounted on said air inlet in such a manner as to cover said plurality of openings, of which each opening having a surface area of at the most 15 mm2, and as to open upon a predetermined pressure difference between a first pressure inside said vessel and a second pressure outside said vessel, said closure lid (3) being provided with a protrusion applied on said conically shaped part and forming a flat contact face for said valve.

Abstract: A container for holding a fluid that includes a hollow body defining an inner volume and an elastomeric membrane that is integrally formed with the hollow body forming a unitary container having a vent area. The vent area vents the inner volume such that air is selectively permitted to flow into the inner volume through the vent area and the fluid contained in the inner volume is substantially prevented from flowing out of the inner volume through the vent area. The elastomeric membrane is co-molded with the hollow body.

Abstract: There is provided a gasket element having at least one first inner layer and at least one first outer layer. Each of the at least two layers have differing material properties. The gasket element is well suited to cooperate with an ingress/egress opening of a container that in turn is well suited to retain an active pressure and/or temperature sensitive substance. The gasket element may be operatively connected to a cap element that is suitable to selectively close the at least one ingress/egress opening of the container. The cap element may be a stand alone sealing cap or may be operatively associated with a spray nozzle or the like.

Abstract: A safety cap made of a mesh casing body and attachment frame and attached by snap-fitting or screw engagement to the pressure release valve of a pressure cooker or to the inner surface of the lid of the cooker so as to cover the pressure release valve, thus allowing no food particles to reach the pressure release valve and preventing the pressure release valve from being clogged.

Abstract: A portable and collapsible isolator is taught for containing radioactive, chemical or biological agents. The isolator is comprised of a collapsible frame, movable between a collapsed transport position and an open operational position, and a flexible and collapsible envelope in the form of an airtight bag attached to the frame to define a cavity. The envelope remains airtight in both the collapsed and open positions. One or more sealable openings are formed in the envelope for insertion and removal of the radioactive, chemical and biological agents into and out of the cavity. The isolator may optionally include at least one glove extending from one or more of said sealable openings into the cavity, for handling said radioactive, chemical and biological agents inside the cavity.

Abstract: A venting device that may be used directly with a container or via a vent cap for a container, includes a venting mechanism having one or more collapsible dome structures and an absorbent material to prevent leakage of liquid or flowable contents from within the container. The construction relies on a combination of venting domed structures and expandable absorbent material to seal one or more openings in a container and or cap.

Abstract: A method for hot-filling and closing a polymer container is disclosed in which one of the closure for the container and the head space area of the container is provided with a hole covered with a hydrophobic air permeable membrane. The container is then filled with a hot liquid and the filled container is closed but for the air permeable component. The filled container is then cooled with the pressure between the interior of the container and the ambient pressure being equalized due to the air permeable membrane. Subsequent to cooling, an air-tight seal is provided over the membrane-covered hole. An associated container and closure cap is also disclosed.

Abstract: There is provided a gasket element having at least one first inner layer and at least one first outer layer. Each of the at least two layers have differing material properties. The gasket element is well suited to cooperate with an ingress/egress opening of a container that in turn is well suited to retain an active pressure and/or temperature sensitive substance. The gasket element may be operatively connected to a cap element that is suitable to selectively close the at least one ingress/egress opening of the container. The cap element may be a stand alone sealing cap or may be operatively associated with a spray nozzle or the like.

Abstract: A method and apparatus for delivering biomass fuel to a structure through an external wall of the structure is disclosed. The apparatus comprises a hopper disposed within a delivery vehicle. The hopper includes an inlet disposed on its top surface to receive biomass fuel and an outlet located proximate the bottom of the hopper to release the fuel by opening a gate valve. A delivery hose is connected to the hopper outlet at one end and is sealably connectable at its other end to an externally accessible coupling disposed on an external wall of the structure to which fuel is to be delivered. The coupling is connected on the interior side of the external wall to a delivery pipe that connects to a fuel bin for storing the biomass fuel. Sensors within the bin can signal the operator when the level of fuel within the bin reaches a preselected level, allowing the operator to stop delivery when the bin is full.

Abstract: A self-venting cover for a heatable food package comprises a sheet of film having a slit formed therein to permit the passage of steam therethrough. A label is secured to the film for controlling the flow of steam through the opening. The label includes a sheet of material having a first region secured to the film in an area remote from the slit and having a second elongated region covering the slit. The elongated region is only partially secured to the film and forms a vent passage between the unsecured portion of the elongated region and the film itself, which vent passage extends from the slit towards the periphery of the label to permit controlled venting of steam from the opening. The elongated region of the label is relatively narrow and the first region is relatively wide and is located spaced from the opening.

Abstract: A vent valve, and a vent valve assembly, for a liquid dispensing container, employ a vent disc having small open vent holes in cooperation with an overlying thin flexible flap that covers and closes the vent holes to limit liquid pressure on the holes when the container is upright, yet require little suction pressure to move the flap to draw liquid or vent through the holes. The vent valve can be used in a bottom cap that is attachable to the bottom open end of the container. The vent valve assembly includes such a bottom cap, a sealing member for sealing the bottom cap to the container, and a vent valve. The vent valve and/or bottom cap have an elevated vent disc and a top portion having the thin flexible flap.

Abstract: A vented closure for a liquid container which will not freely pour includes a cap movable between open and closed positions relative to a base collar. The movable cap can be slidable to form a push-pull type closure, or can be rotatable to form a flip-type closure. In an open position, a primary fluid passageway extends through the closure to one or more dispensing opening. One or more air vents of small size are located in the base collar at positions spaced within predetermined ranges of offsets from the dispensing openings. A divider or barrier is located to create a secondary fluid passageway to convey liquid directly into contact with the air vents which can self-seal by surface tension of the liquid and to convey air bubbles through the liquid when the container is tilted. Overlapping portions of the movable cap can protect the vent apertures and/or the dispensing aperture structure.