Abstract: A dialysis machine has two hydraulic connectors at the dialysate side to which a respective connection line having a filter coupling is connected for connection to a dialyzer, with the hydraulic connectors being an inflow connector for feeding fresh dialysis liquid to the dialyzer and a backflow connector for draining consumed dialysate from the dialyzer. The dialyzer machine also has two parking positions associated with the respective hydraulic connectors for storing the filter couplings when not in operation, wherein the filter couplings of both hydraulic connectors are equipped with a connection sensor which recognizes a connecting of the filter coupling to a dialyzer and/or that both parking positions are provided with separate covers.

Abstract: A pump assembly is provided for use with an inflatable product. The inflatable product has a chamber having an air inlet/outlet port. The pump assembly has a pump unit that is positioned inside the chamber for inflating and deflating the chamber, the pump unit having at least one motor that is operatively coupled to a blower, with the blower fluidly coupled to an opening of the pump housing. The chamber is inflated by intake of air through the inlet/outlet port to the blower and then into the chamber, and the chamber is deflated by drawing aft from the chamber to the blower and then out of the chamber through the inlet/outlet port.

Abstract: A portable inflator (1) includes a motor (51), a compression mechanism (6) driven by the motor (51) to compress and discharge air, a main body housing (2), a leg (3), a grip (4), and a manually-operable trigger (41) provided on the grip. The main body housing (2) includes a battery mount part (251) for detachably mounting a battery (8), and houses the motor (51) and the compression mechanism (6). The leg (3) supports the main body housing (2) when a lower surface (31) of the leg (3) is disposed on a placement surface (P). The grip (4) is connected to the main body housing (2) and extends at least substantially parallel to the lower surface (31) of the leg (3). The motor (51) is driven in accordance with pulling of the trigger (41).

Abstract: The invention relates to a dispensing device (40) for being disposed in the forming tube (42) of a tubular bag machine (01) for the portioned dispensation of a flowable, in particular powdery, product (46), having at least one screw conveyor (43) discharging the product (46), said screw conveyor (43) protruding into a screw tube (41) with its longitudinal axis and being able to be rotationally driven by a drive, and having a flow barrier (45) fastened at the lower end of the screw tube (41), the amount of the product (46), which trickles down when the screw conveyor (43) is stopped, being able to be reduced by the flow barrier (45), at least one first receiving contour being provided at the flow barrier (45), and at least one second receiving contour being provided at the lower end of the screw tube (41), and a locking bolt being able to be inserted into and/or pushed through the first receiving contour and second receiving contour when disposing the flow barrier (45) at the lower end of the screw tube (41) i

Abstract: A manual pump includes a pumping unit and a nozzle unit. The pumping unit includes an air bag, a valve housing connected to the air bag, and a sealing ring located on and around the valve housing. The nozzle unit includes a shell connected to an inflatable object and made with an opening, a shield connected to the shell and made with an aperture, a plunger inserted in the opening and the aperture, a sealing ring located on and around the plunger, and a spring located on and around the plunger and compressed between the plunger and the shield. The aperture is in communication of air with the opening, and the opening includes a tapered portion with a wall in contact with the sealing ring of the pumping unit when the valve housing is inserted in the shell.

Abstract: A bond fixture includes a frame that defines a chamber for receiving a component. At least one bladder assembly is mounted to the frame and extends into the chamber to apply a pressure to an adjacent surface of the component. A caul assembly is positionable about the component and receivable within the chamber. The caul assembly heats a localized portion of the component.

Abstract: A multi-blade dosing valve comprising the following elements: a valve body provided with a central opening; a plurality of shafts, each provided with a respective blade, which extend transversely to the central opening; the blades being able to close, at least partially, the central opening; a motor unit which causes the opening/closing of the blades; and vibrators to set in vibration the shafts and the blades. The multi-blade dosing valve comprises an independent vibrator for each shaft.

Abstract: An apparatus and methods for producing at extremely high production speeds small pouches filled with tobacco or other granular, powdered or solid content. An endless web substrate, with or without flavor film thereon, is formed into a tubular shape with a longitudinal seam. The tube is cut to individual lengths, and a procession of tubes is crimp-closed at one end, filled and crimp-closed at the other end to complete pouch production. During production, the seams formed at the crimped ends of the pouch are parallel to one another and the longitudinal seam of the pouch is midway between the sides of the pouch and orthogonal to the seams formed at the crimped ends of the pouch.

Abstract: A device for filling a receptacle (1) with a liquid, especially a drinking liquid, comprises a balloon-type body (4) which can be introduced into an opening (3) in the receptacle (1) and can be filled and inflated in such a way that the balloon-type body (4) rests against the inner surface of the inflated, the balloon-type body (4) is folded about the circumference in order to increase the size of the circumferential line of the balloon-type body (4) compared to a simple circle.

Abstract: An inflatable cushion including: an inflatable body, having an upper surface and a lower surface, said body including an air-impermeable skin defining a chamber, an elastic foam core within said chamber and a sealable air valve; and an external elastic foam layer substantially covering at least one of said upper and lower of surfaces; wherein: the foam core is formed of a foam having a density of between about 15 kg/m3 and about 35 kg/ma and a hardness of between about 25 newtons and about 45 newtons; and the foam layer is formed of a foam having a density of between about 35 kg/m3 and about 65 kg/m3 and a hardness of between about 35 newtons and about 95 newtons.

Abstract: Airbag cushion assemblies comprising cushion orientation features and related methods. Some embodiments may comprise an airbag cushion comprising a throat region comprising an inflator opening. An inflator comprising an inflator collar may be coupled with the airbag cushion. The inflator collar may comprise a non-circular shape. The assembly may further comprise an inflator coupling member coupled with the airbag cushion at the inflator opening. The inflator coupling member may similarly comprise a non-circular opening configured to be aligned with the inflator opening and to mate with the non-circular shape of the inflator collar so as to prevent the inflator from being coupled with the airbag cushion in a non-desired rotational orientation.

Abstract: Disclosed herein is a portable bag assembly having a drying and sterilization function. The portable bag assembly includes a bag main body configured to form an inner space enabling an article to be received in and removed from the inner space, the partition unit having an openable surface so that access to the inner space is made; a partition unit contained in the bag main body to partition the inner space into multiple regions; a management unit provided in a portion of the bag main body to sterilize an article or to dry a wet article; a controller provided in a portion of the bag main body and electrically connected to the management unit, the controller controlling operation of the management unit; and a wireless communication module electrically connected to the controller to receive a control signal from a wireless terminal and transfer it to the controller.

Abstract: The invention relates to an airbag module (10) for being arranged on an instrument panel (5) comprising a fastening portion (22) provided for being arranged on the instrument panel (5), an inflator (16), an airbag (12), a receiving portion (26) for the airbag (12) extending from the inflator (16) to the fastening portion (22) and a retaining portion (24) which is accessible from outside of the receiving portion (26) and serves for retaining the inflator (16). The invention also relates to a subassembly comprising an instrument panel (5) and an airbag module (10) according to any one of the preceding claims, the fastening portion (22) of the airbag module (10) being connected to the instrument panel (5) and a retainer (28) formed separately from the airbag module (10) being provided which is connected to the retaining portion (24) of the airbag module (10).

Abstract: A balloon inflating device includes a gas mixing device fluidly connecting a supply of pressurized lighter-than-air (LTA) gas and a supply of a second gas to a balloon interface nozzle via a gas shut-off valve. The gas mixing device includes an outer pipe including a closed first end, an inner chamber, an inner pipe that projects through the closed first end of the outer pipe into the inner chamber, a first fluidic inlet and an outlet port. The inner pipe includes a second fluidic inlet into the inner chamber. The second fluidic inlet fluidly connects to the supply of LTA gas. The first fluidic inlet is proximal to the closed first end and fluidly connects to the supply of the second gas. A second end of the outer pipe fluidly connects to the outlet port. The outlet port fluidly connects via the gas shut-off valve to the balloon interface nozzle.

Abstract: A container for a solid product for dialysis has a connector (200) for connection to a dialysis machine, with a filling channel (202) that crosses it from one end to the other for filling the receptacle with solid product; a fluid line (211, 212, 213) for introducing a solution-making liquid, extending between a first connecting portion (211) that opens to the outside and an orifice (213) that opens to the inside; and a fluid line (221, 222, 223, 224) for extracting the obtained solution, extending between a second connecting portion (221) that opens to the outside and an orifice (224) that opens to the inside. The filling channel (202) is open at both ends and the two fluid lines (211, 212, 213; 221, 222, 223, 224) are fluid-tight between the orifice (213, 224) that opens into the receptacle and the first or second connecting portion (221, 221), respectively.

Abstract: A medical apparatus includes a socket unit for connecting a plug unit of a device for supplying medical fluids, in which the medical apparatus is in particular an extracorporeal blood treatment apparatus, for example an extracorporeal dialysis apparatus or an apparatus for peritoneal dialysis, or an apparatus for filling the device for supplying medical fluids. The socket unit comprises connection pieces for the connection of connectors of a plug unit, so that a flow connection can be produced for supplying or discharging a fluid. The connection pieces are surrounded by connection parts thereby forming rinsing chambers, in which the rinsing chambers are closed by closure pieces, said closure pieces being part of a closure body which is disposed rotatably on the socket unit.

Abstract: A balloon inflator includes a tank containing a volume of pressurized gas and a regulator assembly removably secured to the tank for reducing the pressure of gas exiting the tank, the regulator assembly including a pressure regulator. A nozzle assembly is also provided and includes a valve for controlling dispensing of the pressurized gas. A flexible hose extends between the regulator assembly and the nozzle assembly, the hose being in fluid communication with the pressure regulator and the valve. The balloon inflator is small and lightweight, and therefore portable and concealable. The flexible nature of the hose allows for easy manipulation of the nozzle assembly, making use of the balloon inflator easier for performers.

Abstract: Bag installation for bagging machines may include bag installation systems and/or methods that provide efficient, convenient, safe, and/or simplified means and/or steps for installing a bag on, and/or maintaining bag on, a bagging machine.

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: A tank flap module is provided for installation in a motor vehicle having a basin, which in the region of an elastically deformable floor section has a passage opening for receiving a fuel filler neck. The floor section adjoining the passage opening on a side facing the fuel filler neck has a surface structure provided for reducing the adhesive and/or sliding friction properties.

Abstract: An air manifold adapted for attaching to an air fill opening in a side of plastic, polymer balloons and receiving compressed air therein. The air manifold includes a hollow manifold body with a plurality of outwardly extending manifold air ports attached to and spaced around an outer circumference of the manifold body. The air ports are adapted for releasable or permanent attachment to the air fill openings in the side of the balloons. The manifold body also includes an air tube. The air tube has one end attached to and in fluid communication with the manifold body. An opposite end of the air tube is adapted for receiving the compressed air therethrough and into the manifold body. When the compressed air is received through the air tube and into the manifold body, the balloons attached to the manifold air ports are inflated for forming a balloon cluster around the manifold body thus providing an attractive and decorative display.

Abstract: A water storage assembly is disclosed including a flexible bladder having a water storage cavity, a water inlet in fluid communication with said cavity, a water outlet in fluid communication with said cavity, and a rigid frame adapted to support said bladder wherein said bladder wherein said bladder is secured to said rigid frame and said bladder is adapted to expand and contract upon flow of said water into and out of said cavity.

Abstract: The present invention is directed to a system for aiding collection of debris comprising a rigid, unitary body further comprising a base and a shell. The base is substantially planar, having a proximal end portion and extends to a distal end portion. The base has a pair of edges extending longitudinally from its proximal end portion to its distal end portion. The shell has a proximal end portion and extends to a distal end portion and has a pair of edges extending longitudinally from the proximal end portion to the distal end portion. The shell has an elevated region extending between the pair of edges. The base joined to the shell at their respective corresponding edges, defining a cavity therein and defining a mouth at its proximal end, the mouth being contiguous with a debris channel, and the debris channel being contiguous with an outlet at the body's distal end.

Abstract: Method and apparatus for filling bags with loose materials, wherein a package to be filled is filled by means of a filling element in a filling process. The filling process comprises a filling stage, a settling stage, and a discharge stage wherein during the filling stage, loose material is filled into the bag while admitting air and in the settling stage, a settling phase is provided for the pressure to drop and in the discharge stage, the bag is discharged from the filling element. In the settling phase, the squeezing device applies a squeezing pressure to the package so as to vent the package and to reduce the volume available to the package, until a predetermined reduction of the volume available to the package is reached, whereupon the squeezing pressure of the squeezing device on the package is reduced and the package is discharged from the filling element.

Abstract: A two part system for transferring fill material in and out of soft furniture such as beanbag furniture, which comprises a transfer bag and a tubular funnel secured to the transfer bag and a second tubular funnel secured inside a piece of soft furniture to which the filling is to be transferred.

Abstract: A sealing and inflating assembly includes an air compressor for generating a pressurized air, a tire repairing container for receiving a sealing preparation having a mouth opening, an outlet piece attached to the mouth opening of the container for guiding the pressurized air to flow into the container, and having an inlet conduit for allowing the sealing preparation to flow out of the outlet piece, a pipe coupled to the inlet conduit of the outlet piece for directing and guiding the pressurized air to flow into an upper space of the container without flowing through the sealing preparation when the container is disposed upside down.

Abstract: A tire repair device comprises: a bottle body 10 containing tire cement, and a bottle cap 20 formed at an opening of the bottle body 10. A tire cement guiding tube is provided in the bottle cap 20, in which the guiding tube includes a first tube section 21 axially parallel to the bottle body 10 and a second tube section 22 perpendicular to the first section 21 of the tube. The second tube section 22 connects with an end of a fluid transfer tube 30, and a connector 40 is formed at the other end of the fluid transfer tube 30, and the connector is connected to a tire to deliver tire cement from the bottle body 10 to damaged areas of the tire. A step 25 is formed along the inside wall between an entrance 211 of the first tube section 21 and an entrance 221 of the second tube section 22.

Abstract: Novel water balloon filling devices and tying fixtures are disclosed herein. Preferred filling devices are configured to attach to a water spigot or hose and include a spring valve that is protected from internal water flow. Preferred tying fixtures can include two prongs having diverging end sections.

Abstract: A kit for repairing and inflating inflatable items comprises a housing, a compressor assembly housed within the housing, a connecting device having an inlet connected to the compressor assembly and a seat adapted to be fluidically connected to a container assembly for a sealing liquid and to the inlet, a valve configured to be opened automatically when the container assembly is connected to the connection device and elastically maintained in a first position such as to fluidically disconnect the inlet from the seat when the container assembly is disconnected from the connecting device, and a flexible tube fluidically connected to the compressor assembly. In particular, the connecting device comprises an outlet fluidically connected to the valve so as to be fluidically connected to the inlet when the valve is in the first position, and in that the flexible tube is connected to the outlet.

Abstract: An automatic ice vending apparatus including a holding vessel formed with an aperture, the holding vessel being configured and dimensioned to receive and house ice pieces produced by an operatively associated ice supply, an ice metering device, and an ice transferring device at least partially disposed within the holding vessel that facilitates movement of ice pieces located therein in a first direction toward the aperture thereof, and movement of ice pieces in a second different direction from the aperture to the ice metering device, which is adapted and configured to meter a quantity of ice pieces into a readily transportable container. Methods and automated methods of delivering ice to consumer(s) are also included.

Abstract: The invention relates to a tire pressure control system for a motor vehicle, comprising a rotary feedthrough (7) having a stator and a rotor for transferring compressed air, fed from a compressed air source on the vehicle side to the rotor (R) designed for supporting a wheel. The rotary feedthrough (7) comprises an annular chamber (25) present between the rotor (R) and the stator (S) that can be sealed off by activatable seals (15, 16). A stator side and a rotor side air channel (8, 17) open into said chamber. The seals (15, 16) that can be activated for the purpose of compressed air transfer are disposed spaced apart in an axial arrangement having the same or approximately the same spacing from the rotary axis of the rotor (R). According to the invention, either the seals (15, 16) are designed for operating facing each other and an annular grove (18) present between the seals (15, 16) and open to the rotor (R) in the radial direction engages in rotor flange (19).

Abstract: A tie-less water balloon assembly includes an inner membrane for creating a one-way water flow channel. The channel includes a seal and a closure member. Water entering the balloon is directed into the flow channel and into the balloon. Once the water is inside the balloon, the water exerts pressure on the flow channel and prevents water from prematurely escaping the balloon.

Abstract: The present disclosure relates to a temporary mobility kit for repairing tires, including: an air compressor; a sealant assembly selectively connected to the air compressor; a sealant hose in the sealant assembly, configured to connect the air compressor to a tire valve; and a first circuit configured to assess a connection condition.

Abstract: A passive method for conserving fuel vapor by connecting the ullage space of the liquid fuel storage tanks to a bladder in a vapor conservation tank; connecting the ullage space of a liquid fuel delivery vehicle to air space of the vapor conservation tank, external of the bladder; delivering liquid fuel from the delivery vehicle into the liquid fuel storage tanks, the liquid fuel displacing fuel vapor from the storage tanks; delivering displaced fuel vapor into the bladder, the delivered fuel vapor inflating the bladder and displacing air from the air space of the vapor conservation tank, external of the bladder; and, thereafter, over time, delivering fuel vapor from the bladder into ullage space of the fuel storage tanks, replacing the volume of liquid fuel delivered from the fuel storage tanks into vehicle fuel tanks. A passive system for conserving fuel vapor is also described.

Abstract: A portable device for rapidly inflating an inflatable bag is disclosed, which comprises at least one inlet intended to be connected to a source of compressed gas, in order to allow this gas to expand into an air intake chamber, the inlet being associated with a mechanism that triggers the release of the compressed gas to the air intake chamber, the latter having an opening allowing atmospheric air to be admitted and an outlet intended to be connected to the bag that is to be inflated. The device further comprises an intermediate distribution chamber for the compressed gas, which chamber is arranged between the inlet and the air intake chamber in order to connect the one to the other, and ejection holes arranged so as to open into a lateral wall of the air intake chamber in order to connect the latter to the intermediate distribution chamber.

Abstract: Provided is a tire sealant liquid container that accommodates a tire sealant liquid, and that includes: an air inlet guiding therein a compressed air outputted by a compressor; and a tire sealant liquid outlet guiding the tire sealant liquid into a tire. The air inlet is provided at a position above a liquid level of the tire sealant liquid, and the tire sealant liquid outlet is provided at a position below the air inlet.

Abstract: An apparatus for introducing a selected beverage into a flexible pouch 8, sealingly closing the pouch 8 and dispensing the closed pouch 8. The apparatus comprises a housing 4 adapted to, in use, accept a plurality of reservoirs 10 of beverage concentrate. Each reservoir 10 has a concentrate pump 12 provided with a diluent inlet and a mixer for mixing pumped concentrate with diluent to produce a mixed beverage. Leading from each pump 12 is flexible conduit 14 terminating in a nozzle 68 for dispensing the mixed beverage.

Abstract: A valve assembly for vacuum sealing a collapsible storage bag including a first valve part and a second valve part. The first valve part being inserted into the second valve part with a wall of the bag in between, causing the wall of the bag to break and/or puncture. A valve sealing mechanism to control the air flow from within the bag through the first and second valve part and out the bag.

Abstract: An apparatus for filling a balloon with a fluid and tying a knot in the neck of the balloon, having a filling device body engaging a source of fluid under pressure. A balloon barb extends outwards from the body, and a fluid passageway in the body communicates with a control to allow the passage of fluid from the source to the balloon barb. A tying device extends from the body substantially parallel to the balloon barb, the tying device being detachable from and reattachable to a receptacle in the body of the filling device. A keyway is located either the tying device or an inner surface of the receptacle, and a key is located in the other of the tying device or the receptacle. The key corresponds in dimensions to fit in the keyway, where the key removably fits into the keyway when the tying device is inserted in the receptacle of the body of the filling device.

Abstract: A dosage-dispensing element (30) on a container (10, 11) for free-flowing or pourable bulk materials has an outlet spout (12) that reaches into the element. The element has an inlet opening (32) on the side facing towards the container, a clamping profile (42) and/or a quick-tightening device (44) which makes a releasable connection between the outlet spout and the element, a slot-shaped outlet opening (34) on the side that faces away from the container, a ring gap (22) between the outlet spout and the inlet opening, a wall (36) extending between the respective openings with an inside (37) and an outside (38), and a foil-shaped material (20), especially a foil hose or foil section, stored in the area of the outlet spout. The inlet opening, the inside of the wall and the slot-shaped outlet opening are covered with the foil-shaped material.

Abstract: A temporary mobility kit directed to a release arrangement for selectively releasing a sealant bottle from the base of the kit is disclosed.

Abstract: A flood wall system and method of constructing same, including providing a first main panel section; attaching sleeves to each side of a main panel prior to configuring the final chamber; providing two sleeves of fabric at the upper opening of each chamber for supporting the chambers while they are filled with materials such as sand; providing a series of chambers sewn together to define a continuous cellular wall; the final chamber having a horizontal height which is two feet (0.6 m) longer than the vertical height further having a front toe portion one foot (0.3 m) in height; filling each chamber with a quantity of material, such as sand; on each end of a completed chain of chambers, further comprising a set of loops or ties so that a chain of chambers is capable of being tied to other chains of chambers to define the continuous flood wall system.

Abstract: A kit for repairing and inflating inflatable articles has a compressor unit for producing compressed air; a container containing sealing fluid injectable into the inflatable article by means of a stream of compressed air from the compressor unit; a fluid line designed to connect the compressor unit to the inflatable article; and a sensor for determining a connection status to the inflatable article.

Abstract: In a filling system for sealing and inflating tires, comprising at least one pressure source, in particular a compressor, and at least one container for receiving tire sealant, the container for receiving tire sealant is to be of tire-like design.

Abstract: A tube holder for a tube filling machine includes a cup-shaped housing having a tube receptacle that opens towards the top and into which one end area of a tube can be inserted. At least one vertical groove is formed in the area of the inner wall of the tube receptacle into which a clamping element is inserted, wherein the clamping element can be radially displaced substantially perpendicularly to the longitudinal central axis of the tube receptacle and is pivotably disposed about a pivot axis that extends substantially tangentially relative to the inner wall of the tube receptacle. A clamping force that acts radially from the outside onto the inserted tube can be applied by the clamping element under the action of upper and lower spring elements. The pivot axis is thereby formed on a pivot bearing which permits radial displacement of the pivot axis.

Abstract: To prevent a burr, produced from the joint portion by welding between a liquid agent container and an injection unit, from interfering with a boring member inserted into a jig communication passage when the boring member is inserted into the jig communication passage to prevent the obstruction of the piercing action through a sealing member by the edge of the boring member.

Abstract: A balloon filling device is provided. The balloon filling device includes a hose connector extending outwards from a body of the balloon filling device, a hose barb extending outwards from the body along a predominant axis, the hose barb being displaced on the body from the hose connector, a valve within the body having an opened state where the valve forms a conduit between the hose connector and the hose barb and a closed state where the conduit is blocked and a receptacle disposed in the body adjacent the hose barb that receives a balloon tying device.

Abstract: The improved bag valve includes a flexible bag (4) made of an impermeable material with an opening that is closed by a valve (6) for filling the bag (4) with a desired product. The empty bag (4) is rolled up or folded about a longitudinal axis (X-X?) and kept in the rolled position. The bag (4) is designed so as to elongate itself when filled with the desired product.

Abstract: A flexible container has a container body with container walls that define a container interior. A container socket is connected to the container body and has a container opening through which the container interior is filled. Carrying loops are connected to the container body for lifting the container. The container socket has an initial retracted position in the container interior and is transferable from the initial retracted position into an upright filling position. The container socket is at least partially comprised of an elastically expandable material. The flexible container is filled by inserting into the container socket a filling tube, contacting with the filling tube the container socket in the initial retracted position, and transferring the container socket to the upright filling position and keeping the container socket secured on the filling tube in the upright filling position. The bulk material is introduced through the filling tube into the flexible container.

Abstract: Inflation kit, especially for inflating balloons, balls and the like, characterized in that it comprises: two opposing hollow interlocking bodies, one having at least one inlet for air coming from the outside and the other body having at least one outlet for air coming from the internal cavity defined by the two bodies; an extractable bellows inside the internal cavity defined by the two bodies, through which air can flow from the air inlet to the air outlet; a valve that can be coupled to the air outlet of one of the bodies; and lastly a deflated inflatable element housed inside the cavity defined by the two bodies.