Abstract: An apparatus is disclosed for housing radioactively and biologically contaminated waste materials during treatment thereof to inactivate the biological contaminants and render the wastes more suitable for disposal in a solid landfill. The apparatus is nonporous and thermally resistant. Additionally, the apparatus features at least one opening within which is disposed a filter for entrapping any radioactive compounds contained in gases exiting the apparatus during the treatment. The apparatus is used in conjunction with an autoclaving procedure which inactivates the biological contaminants while preventing volatile radioactive compounds from escaping into the environment.

Abstract: A vented hatch cover for an enclosed vessel having a cover body sized to overlie and cover a hatch opening defined by an upstanding coaming. A pair of air passages are defined by the cover body and a pair of hoods connected thereto. The hoods define air inlet opening and a plenum which communicates with air outlet openings in the interior of the cover body. The air passages permit air flow in sufficient volume to vent the vessel and to empty the vessel by high speed vacuum unloading. A filter is removably retained on the hoods in the air inlet openings. A filter screen on the interior of the cover prevents contamination of the air passages from the inside. A latching arm provides downward pressure on the hatch when in a sealing position and the capability of pivoting the hatch cover together with the latching arm when it is moved. The cover is floatingly engaged in the arm.

Abstract: In this invention, a breather device for a tank comprises a closed reservoir above the container but having a conduit which depends into the container and has an opening which determines liquid level in the container. The container comprises air inlet means which will allow entry of air into the container from above liquid level, and a breather tube which opens into the container below liquid level (or vice versa) so that liquid normally closes the air flow path to the breather tube, but the depth of water level is so small that a slight pressure differential only is required to cause sufficient displacememt of water to open that air flow path.

Abstract: A gas permeable culture flask and method for culturing mammalian cells wherein a gas permeable insert is provided in the flask to allow rapid and uniform equilibration of gases between the atmosphere of the culture flask and the atmosphere of the incubator into which the flask is placed for culturing. The size of the gas permeable insert relative to the overall surface area of the flask is limited to allow the flask to be removed from the incubator for observation, testing and culture treatment for relatively long times without substantial changes to the flask atmosphere. Alternatively, removable covers are provided for occluding passage of gases through the gas permeable insert when the flask is removed from the controlled atmosphere of the incubator.

Abstract: The foregoing and other objects of the invention will be realized by a closure assembly engageable with the filler tube of a fuel tank for preventing the outflow of fuel vapors from the fuel tank during a filling procedure and including a manually grippable generally circular top member having a central axial opening therein for permitting the passage of a fuel delivery nozzle therethrough and receiving a relatively smaller press fitted cap thereat. A threaded bottom member of generally circular cross section extends from the top member for threadable engagement with a threaded opening in the filler tube. The bottom member is of a generally hollow construction and has a central axial opening therein and in which a resilient circular annular fuel vapor absorbent filter element is located.

Abstract: A ventilating system for a garbage container. The container includes a vessel for receiving wastes and a cover. The receiving vessel has walls which are at least over portions thereof provided with air passage openings. An air-permeable intermediate wall is arranged spaced above the vessel bottom for carrying the waste. The intermediate wall is a grate with meshes formed by grate members. The meshes have a width which is substantially greater than the width of the grate members. The walls of the receiving vessel define air inlet openings in the region of the grate. Additional ventilation openings are provided in the walls underneath the opening of the receiving vessel. Spacer members for the wastes are provided on the inner surfaces of the walls of the receiving vessel at least over the portion of the walls which extends vertically above the grate. The cover is provided with air discharge openings.

Abstract: An apparatus is disclosed for housing radioactively and biologically contaminated waste materials during treatment thereof to inactivate the biological contaminants and render the wastes more suitable for disposal in a solid landfill. The apparatus is nonporous and thermally resistant. Additionally, the apparatus features at least one opening within which is disposed a filter for entrapping any radioactive compounds contained in gases exiting the apparatus during the treatment. The apparatus is used in conjunction with an autoclaving procedure which inactivates the biological contaminants while preventing volatile radioactive compounds from escaping into the environment.

Abstract: A pressure equalizing element for an electrical device enclosure, e.g. for a control device under the hood of a vehicle, features a water-tight but air-transmitting region (6) which equalizes pressure between the interior airspace of the enclosure and ambient airspace. The element is preferably thimble-shaped so that all exterior surfaces are curved and water will not pool on it and clog the air pores. Thus, it will be operative, and can be installed, in any desired orientation. The thimble-shaped element preferably has a threaded (40) or dovetailed (4) rim which facilitates engagement with a correspondingly shaped aperture in the wall of the electrical device enclosure.

Abstract: There is disclosed an atmospheric pressure dewar with an improved closure for the neck opening. The improvement comprises a cork positioned in the neck opening with a fibrous material occupying the peripheral space between the neck opening and the cork to inhibit convection flow of gases in the peripheral space when the dewar is oriented other than in the upright position.

Abstract: A two-way tamper-proof vent arrangement especially constructed for food grade receptacles and tanks is disclosed. The vent arrangement includes inner and outer stainless steel inverted cup members which are nested together and are concentrically mounted on a bracket over a tubular vent opening in the receptacle or tank. The outer cup member has a lower circumferential edge which bears on the surface of the receptacle or tank surrounding the vent opening so that tubes or other instruments cannot gain access to the vent opening. The inner cup member has a lower circumferential edge spaced from the surface of the receptacle surrounding the vent opening. The outer cup member is provided with a plurality of small openings to permit the inflow and outflow of venting air along a labyrinth path formed by the inner and outer cup members between the exterior of the outer cup member and the vent opening.

Abstract: A fuel cap has an anti-splash attachment which includes an outer splash-back baffle, an inner foam plug element and a retainer post which supports the outer baffle and inner plug element and tethers them by a releasable snap-on connection to an inner baffle-supporting stem of the fuel cap. The inner plug element when substantially dry is in a contracted state wherein it is smaller in diameter than the inside diameter of the fuel tank filler neck to which the fuel cap is applied. An annular gap is then present between the exterior side surface of the plug element and the interior surface of the filler neck, making it easy to insert and withdraw the fuel cap with the anti-splash attachment thereon into and from the filler neck.

Abstract: A military gas can vent cap is set forth wherein a step-adapter sleeve is threadedly insertable within an existing military gasoline-type can. An upwardly projecting portion of the adapter sleeve is of a diameter greater than the lower portion to provide a planar surface for interfittingly imposing pressure onto a resilient gasket positioned within an interior portion of an associated cap. The cap is provided in a first embodiment with a vent hole directed into a tubular vent portion positioned on an upper surface of the cap filled with porous brass stock material to enable venting of fumes from interiorly of the can and preventing water intrusion from the interior of the can. A second embodiment includes a porous brass positioning member securing the gasket to the interior surface of the cap to enhance movement of fumes therethrough and to the vent.

Abstract: A filter-separator pour-out cap for attachment to the neck opening of a container to separate particulate material from a liquidic suspension in the container when the container is tipped to pour out its contents. The cap comprises a filter-separator section having an upstream face at which flow from the container enters and a downstream face at which flow exits. This section comprises successive elements that are spaced axially apart from each other and are constructed and arranged to present at the upstream face juxtaposed uniformally spaced apart edges that define the entrances of openings that pass through the filter-separator from the upstream face to the downstream face. These elements have, in transverse cross section, a taper which narrows in the direction from the upstream face to the downstream face so that the openings are of progressively increasing taper in the same direction. In one embodiment of the invention these elements are identical circular rings.

Abstract: A cylinder type damper device for damping the opening and closing movement of a storage box includes a cylinder member enclosing air therein, an end cap with a filter therein and a rod reciprocally movably inserted into the cylinder member and provided at its front end with a piston for dividing the interior of the cylinder member into a head chamber and a rod chamber. The rod is moved in association with an opening or closing movement of the storage box. The piston has an orifice formed throughout its entire length in the axial direction thereof and being for interchanging air in the head and rod chambers by the axial movement thereof and also has air holes formed likewise throughout its entire length in the axial direction thereof and provided with a check valve for blocking the interchanging of air between the head and rod chambers in accordance with one directional movement in the axial direction of the piston.

Abstract: A vented hatch cover for an enclosed vessel having a shell member sized to overlie and cover a hatch opening defined by an upstanding coaming. It includes a peripheral seal to seal against coaming. The shell member has at least one air passage extending through it. A wall is integrally formed on the shell member and defines a plenum in communication with the air passage. The wall extends outward beyond the peripheral seal and there defines an air intake opening for admitting air to the plenum. An air filter is housed in the plenum.

Abstract: A transport container with an interchangeable, bipartite inside container includes an outside hood, an outside bottom plate, an inside hood, an inside bottom plate, two closing levers, a sealing element and a semiconductor holder. A filter element is built into the container to provide a particle-type transportation container for transporting and storing semiconductor wafers in a semiconductor wafer cassette and for use in differing air pressure conditions and air purity conditions.

Abstract: A cap for containers used to store volatile liquids is provided characterized by a gas venting port formed in the main body of the cap which is attached to an opening in a container, a filter accomodation space which connects with the aforementioned gas venting port formed in the bottom surface of the main body of the cap, a channel formed in the central portion of a filter assembly installed in the aforementioned filter accomodation space, two hydrophobic porous filter membranes, one installed between the filter assembly and the aforementioned gas venting port and one installed over the innermost end of the aforementioned channel, whereby a liquid passageway is formed, and an aqueous liquid partly, but not completely, fills the interior of the assembly.

Abstract: A sterilization container system for sterilizing surgical instruments, having a lid secured to a base by latches. The latches are automatically disengaged when the latches' release arms are raised to form handles by which the lid can be easily and securely manipulated; while the latches are automatically engaged when the latches' release arms are lowered, sealing the lid to the base. The base is provided with an outer safety wall, which is lower than and which extends around the base's inner wall, in order to help protect the top of the base's inner wall from inadvertent contamination when the lid is removed. Disposable paper filters are sealed over the vents inside the lid and base by cooperating filter paper sealing flanges provided in the filter papers' retainers, lid and base, in order to maintain the sterility of the contents of the sterilization container system after sterilization.

Abstract: A venting closure (10) for containers (12) having a pour opening (14) defined by a circumferential rim (16) includes a top wall (20) having inner (22) and outer (24) surfaces. A side skirt (26) extends from the top wall (20) about the inner surface (22). A liner (28) is mounted adjacent the inner surface (22) for perfecting a seal between the top wall (20) and the circumferential rim (16) when the closure (10) is secured upon the rim (16) and over the opening (14). The liner (28) includes a gas impermeable non-hydrophobic portion (30) at least about the periphery of the liner (28) and an integral gas permeable hydrophobic portion (32) offset therefrom.

Abstract: Disclosed is a method of installing a reversibly porous, air-diffusible, water-restrictive, polymer plug in a port that extends through the wall of a nuclear waste storage container. The plug is inserted a predetermined distance, for example, with the aid of a screwdriver applied to a slot in the plug's outer face. When inserted, the plug prevents the loss of nuclear waste through the port while the air-diffusible nature of the material allows gases to pass through the material. The resultant venting action of the plug prevents the creation of pressure differences between the interior of the container and the environment. Thus, the likelihood of the container becoming overpressurized and leaking is minimized. In addition, the water-restrictive nature of the plug material restricts the ingress and egress of water from the container, reducing the likelihood of groundwater contamination during storage.

Abstract: A sterilization container is provided with relatively large top and bottom apertures to allow hot steam to rapidly pervade the interior of the container through the top while flushing cool air out the bottom. The apertures are provided with pressure actuated valves with large cross sections to minimize impedance to gas flow when the valves are open. The pressure-sensitive elements of the valves are set such that the valves close to seal the apertures when the external pressure is at atmospheric, and rapidly open fully when the pressure begins to rise in the autoclave as steam is admitted at the start of a sterilization cycle. When the external pressure is returned to atmospheric at the end of the cycle, the pressure-actuated valves close to provide a sealed container for removal from the autoclave.

Abstract: A medical instruments sterilization container (10) includes a housing (12) and a removable dome-shaped lid (14) having a filtered inlet port (18) disposed therethrough for permitting the passage of gas or steam into housing (12). A removable tray (16) is adapted to be disposed within housing (12) to hold various instruments to be sterilized and includes apertures (24) formed on the bottom of the tray for permitting condensate to drain therefrom. The bottom surface of housing (12) is sloped to two locations centered on opposite sides thereof and includes filtered outlet ports (40, 42) positioned at the two locations to permit discharged air and condensate to exit housing (12). Pedestals (30) are secured on the bottom surface of housing (12) to facilitate stacking of a plurality of sterilization containers.

Abstract: A vented fuel system for a vehicle includes a plurality of fuel storage tanks and a fuel sump tank with at least one fuel storage tank positioned on each side of the vehicle. The sump tank is positioned on the vehicle between the fuel storage tanks and at a lower elevation than the fuel storage tanks. Each of the fuel storage tanks is connected by a fuel line to the sump tank and all of the fuel storage tanks are interconnected by air transfer lines. One of the fuel storage tanks on each side of the vehicle is provided with a filler spout and a vented fuel cap assembly for closing the filler spout. All of the fuel tanks can be filled from either side of the vehicle, and during refueling, air is expelled from the closed vented fuel cap assemblies and the open filler spout. The plurality of air transfer lines prevent air entrapment in any of the tanks by transferring air between the tanks and subsequent venting of the air through either or both vented fuel cap assemblies.

Abstract: A container for sterilizing, and storing and presenting surgical instruments and materials in a sterilized condition has a container base member with a cover and bottom and side apertures for passage of a sterilizing agent; a sealing gasket between the container cover and the base member provides a seal and a tortuous path constituting a probability filter is provided exteriorly of the seal; a removable tray for instruments to be sterilized is carried within the container; a removable filter element commensurate in shape to the container base member is located intermediate the removable tray and the bottom of the container base member; the filter element may be of a soft formed element or may have a frame and is located with a portion extending outwardly between the base member and cover past the sealing gasket; the filter element provides a filter path permitting passage of sterilizing agent received through the bottom and side apertures into the container while the filter element inside the container and th

Abstract: This invention relates to a semiconductor wafer container having an air filter for removing fine particles from air, which serves to allow air to pass through a body of the container. This causes atmospheric pressure within and without the container body to be substantially identical to each other whereby dirty air is never introduced into the container body.

Abstract: Openings are provided in the walls of a sterilization container, particularly one for surgical instruments, to allow for the introduction of a sterilant gas, and a filter element is provided internally of these openings. To prevent external objects from entering the openings in the surface and penetrating the filter element, a relatively stiff perforate sheet, preferably formed of metal, is placed between the surface of the container and the filter element, the perforations in the sheet being offset from the openings in the container wall.

Abstract: An appliance for disinfecting contact lenses utilizes a disinfecting solution, such as hydrogen peroxide, that liberates a gas during disinfecting action. The appliance has a container body with a removable cap that provides a sealed chamber except for a vent opening through the cap. A hydrophobic membrane filter is disposed across said vent opening and is substantially impermeable to the disinfecting solution but permeable to the liberated gas.

Abstract: The venting device includes a passage (3, 5) provided in a wall (4) of a housing (1) and connecting the inside and the outside of the housing (1). A filter (2), preferably made from porous metallic material, is force-fitted into the passage (3, 5). A peripheral channeling groove (8) provided in the outside surface of the wall of the housing (4) completely surrounds the opening of the passage (3, 5). This venting device may preferably be used in electronics housings fitted in the engine compartment of motor vehicles.

Abstract: A first container having a first material therein has a piercing tip on a dispensing member which is movable relative to the container to control flow from the container. The first container has a movable portion for facilitating introduction of air into the container. A second container having a second material therein has an inlet and an outlet. The inlet is closed and adapted to be pierced by said tip to facilitate introduction of the first material into the second container.

Abstract: A container lid (12) is held open by a support plate (18) carrying a chamber (20) which expands at a predetermined point in a sterilizing cycle to react against the lid, moving the plate outwardly to permit the lid to drop onto the container base. A resilient gasket (16) prevents fluid flow into the container after the lid is fallen, but permits fluid flow outwardly past the gasket when interior pressure exceeds exterior pressure. When the container is to be opened, a relief valve (60) relieves the vacuum within the container and filters air entering the container at that time.

Abstract: A sterilizer container comprising a lower base portion, cover, and an intermediate cover which is installed in a sealing manner on the inwardly drawn edge of the lower base portion. The cover includes an overlapping flange. A flow passage, leading to a tortuous path, is defined by the overlapping flange of the cover and the inwardly drawn edge of the lower base portion. The exchange of fluent media between the interior and the exterior of the container takes place through the flow passage and the tortuous path. The intermediate cover is connected with the cover in a detachable manner and has perforations in its middle segment which are covered by a filter. This filter is pushed against the peripheral segment of the intermediate cover by means of a sealing ring which is supported by the cover. The intermediate cover can be provided with valves effective in two directions in place of perforations whereby an equalization of pressure is possible. In this case, the filter is omitted.

Abstract: A sterilizable container consists of a container part (25) and a cover (12) mounted thereon via a ring seal (11). Bulges (13) provided in the cover (12) and a filter or valve arrangement (16, 17, 18, 19) mounted internally thereon make a germ-free gas exchange between the interior of the container and the atmosphere possible (FIG. 1).

Abstract: A gas cap assembly for a gasoline tank. The gas cap assembly includes cup-shaped cap to be threaded on a neck bordering an opening in the tank. A tubular member is connected to the cap and extends inwardly of the tank with the lower end of the tubular member being generally conical and terminating in a drain opening. A plurality of ports are provided in the upper end portion of the tubular member adjacent the lower end of the cap. Located in the upper end of the tubular member is a conical member having an opening in its lower end that communicates with the interior of the tubular member.

Abstract: A breather cap having a foam filter element and means to permit vapors from the crankcase, manifold or the like to which the cap is attached to pass freely in and out of the cap and between the cap and atmosphere. The invention cap includes a twist-in mounting feature, and an improved assembly method.

Abstract: A vapor outlet valve for packages, consisting of a valve film welded to the inner surface of the capping film of the package in such a way that it is exposed when a predetermined section of the capping film is torn off.

Abstract: A container with a liquid-impervious, vapor-permeable membrane for sterilizing lenses and storing them using the buffered hydrogen peroxide saline solution. The container is also provided with catalytic means to decompose the hydrogen peroxide following termination of the sterilizing period with the membrane permitting escape of the gases produced by the decomposition while preventing passage of liquid therethrough.

Abstract: An air filter is described which is used in conjunction with an overflow receptacle or container of an engine cooling system. The container is in fluid communication with the engine cooling system so that coolant may flow from the cooling system to the container when the coolant expands within the cooling system and to permit the coolant to be drawn back inwardly into the cooling system as the coolant cools. The upper end of the container is provided with a fill opening having a threadadly mounted closure element thereon. The closure element is provided with a plurality of openings formed therein to permit air to be drawn into the container as the coolant therein is drawn into the cooling system and to permit air to escape outwardly therethrough when coolant is passing from the cooling system into the container.

Abstract: A container lid (12) is held open by a support plate (18) carrying a chamber (20) which expands at a predetermined point in a sterilizing cycle to react against the lid, moving the plate outwardly to permit the lid to drop onto the container base. A resilient gasket (16) prevents fluid flow into the container after the lid is fallen, but permits fluid flow outwardly past the gasket when interior pressure exceeds exterior pressure. When the container is to be opened, a relief valve (60) relieves the vacuum within the container and filters air entering the container at that time.

Abstract: A cap and a base fit together to form the culture vessel. Adjacent the tops of the walls of the base is a rim which is "L" shaped in cross-section, consisting of a bottom leg joined to the base walls and an upright leg. Downwardly extending walls of the cap project into the space between this flange and the walls of the base. These cap walls have a plurality of spaced ribs which frictionally engage the walls of the base so that the cap will maintain a position in which it is slightly raised above the position wherein the cap is fully seated against the base. When in that raised position a length of cotton filtering material may be used between the bottoms of the cap walls and the bottom leg of the rim. The cap has an outside peripheral flange coplanar with the upright leg thereby permitting pressure sensitive tape to be applied to the two and bridging the space therebetween. Extending downwardly from the top, within the base walls and adjacent thereto, is a condensate drip flange.

Abstract: A pressure vent for an explosion proof container. The vent allows a high flow rate of gases to pass from the container while arresting flames and cooling exiting hot gases therein. This precludes the build-up of high peak pressures inside the container. Structurally the vent has a protective cover mounted to the container by a knife hinge on one side and closed by imbedded magnets on the opposite side. In addition, the vent has multilayered material mounted in the same container opening near the interior of the container. A layer of porous stainless steel foam with multiple layers of stainless steel screen is used for this vital multilayered material. The optimum embodiment is obtained by preselecting a relationship between the free space volume inside the enclosed container, the number of layers in the prefilter section of the vent, and the cross sectional area of the vent.

Abstract: A venting and filtering system for minimizing pressure differentials between the interior and exterior of a liquid storage tank while precluding ingress of contaminants into such tank. More specifically, a closure assembly for closing the access manhole in a liquid storage tank--e.g., a tank trailer suitable for transporting a comestible liquid product such as milk--including an upstanding tubular wall defining a vertical passage extending through the closure assembly, a sheet of filter material seated on the wall and extending entirely across the passage, and a dome-shaped cover seated on the upstanding wall and projecting rearwardly therefrom so as to define a downwardly facing vent with the vent, dome-shaped cover and passage defining a tortuous path extending entirely through the closure assembly, and wherein the dome-shaped cover is removably or pivotally secured to the closure assembly so as to permit ease of replacement of the sheet of filter material.

Abstract: A cover for a frying pan comprising at least one absorptive, at least partially air-pervious surface of a filter material such as filter paper, filter wadding, fabric or the like. The filter material can be provided with openings which are at least partially covered. The filter material can be secured in a circumferential ring which extends in the plane of the cover or approximately perpendicular to such plane. The cover can also be curved in the shape of a hood.

Abstract: A vessel is disclosed which is particularly suited to the sterility testing of drugs and medical equipment. The vessel comprises a glass container with a flat bottom and a plain cylindrical wall and a molded nylon cap which fits over the open end of the container. The cap has a skirt portion including a sealing ring which forms an airtight seal around the container and a top portion having a removable filter element held in place by a clip and which permits venting of the container.

Abstract: A device comprises a cap formed by a body (4) provided with a base (8) which is biased outwardly by a spring (12) and carries an annular sealing element having a lip (10). The base is provided with a center orifice (14). Mounted on the outer face of the base (8) is a sealing element (20) which is also provided with a center orifice. A filtering element (18) is clamped between the element (20) and the lipped element (10) and closes the orifice (14) so as to substantially preclude the passage of the liquid while allowing the passage of air. The filtering element is formed for example by a tablet which may be partly protected by a thin and impermeable diaphragm (110).

Abstract: A partitioning insert is removably received in the base member of the container. The partitioning walls are larger at the top than at the bottom and terminate in posts which support the remainder of the partitions above the bottom of the container. The top of the container has a stepped flange which rests on and fits about the walls of the bottom of the container. At one end is a releasable latch and at the other is an interengagement between the two members. A part of the top of the container is at a lesser elevation than the remainder and has a vent opening, an air filter and a removable cover assembly.

Abstract: A breather cap has a resilient element which is expanded radially by the movement of first and second plates toward one another. Air can pass through the breather cap and is filtered by a filter device provided in the breather cap.

Abstract: A closure is provided for a container opening. The opening is defined by a neck extending outwardly from the top of the container. The closure includes a liner cap disposed both interiorly and exteriorly of the neck and defines a central passage. A plug extends across the top of the cap to close off the passage from the exterior. The plug is provided with at least one longitudinal hole. The lower end of the plug has attached thereto a membrane extending across the passage. This membrane does not permit liquids within the container to pass therethrough, but possesses the property of being capable of venting gasses therethrough. A dust cap may extend across the top of the closure during shipment and storage.

Abstract: A terminal box used with underground electrical conductors is formed of opposed channels and a top cap with depending sidewalls. Air is permitted to flow to the interior of the housing via a filter beneath the cap, this filter being resistant to the passage of dust, water, blowing snow and insects. A weathertight seal is provided between the opposed channels by a resilient sealing strip and overlapping vertical marginal portions; and, upward access by animals and ground moisture to the interior of the housing is deterred by a continuous barrier sheet which extends transversely across the housing and is sealed thereto.Corrosion damage to the housing is minimized by connecting it electrically to a buried plate formed of a metal which is anodic in the EMF series with respect to the housing metal. Grass fire and lawnmower-impact damage is reduced by surrounding the terminal box at ground level by a vegetation-inhibiting sheet.

Abstract: A sterile container, including a container body having an open end for receiving an item to be maintained in a sterile environment and with the container body including a flange portion extending around the entire container body at the open end, a sealing cavity formed within the flange portion of the container body and extending throughout the length of the flange portion and with the cavity including an opening having a particular dimension across the opening and with at least a portion of the cavity within the cavity having a larger dimension across the cavity than the particular dimension across the opening, a cover for closing the open end of the container body and with the cover including a flange portion extending around the entire cover, and a sealing cavity formed within the flange portion of the cover and with one of the sealing cavities nested within the other when the cover seals the open end of the container body and with the shape of the sealing cavity in the flange portion of the cover compleme

Abstract: A funnel adapted to be screwed to the filling opening of the fuel tank of snowblowers, lawn mowers, outboard motors and the like engine-operated equipment. The funnel is provided with a cap, in turn having an air intake opening with an air filter. The funnel is thus always accessible for filling the tank.