Abstract: In general, certain embodiments of the present disclosure provide devices and methods for brewing beverages. According to various embodiments, the device comprises a pipe structure coupled to a chamber. In some embodiments, the chamber may be configured to house a brewing agent. The device further comprises a pump coupled to the pipe structure. In some embodiments, the pump may be configured to cause water in a container to be pumped through an intake aperture in the pipe structure. The device further comprises a heating element coupled to the pipe structure. In some embodiments, the heating element may cause the water to be heated. In some embodiments, the water in the pipe structure may be directed through the chamber in order to steep the brewing agent in the water.

Abstract: The present utility model discloses a cool immersed and centrifugal coffee brewing machine, includes a filtration cup arranged in a blender jar for accommodating coffee powder; and a stirring mechanism, rotating under driven, is arranged for driving coffee powder and water in the filtration cup to rotate, the centrifugal force formed by rotation and the rotating time are sufficient to brew coffee; a space is set between the filtration cup and the blender jar for accommodating coffee solution. The present utility model of cool immersed and centrifugal coffee brewing machine, due to adopting a stirring mechanism which is driven by a motor, drives the mixture of coffee powder and water to rotate rapidly, thus achieves a fast brewing of the cold soaking coffee through the centrifugal force, which is able to shorten the brewing time of cold soaking coffee from several hours to 10-30 minutes, therefore, it is more practical.

Abstract: A capsule dispenser to dispense a capsule to a user as a dispensing operation is disclosed, along with a beverage preparation machine to extract an ingredient of a beverage from a capsule supplied thereto by a user as a beverage preparation operation. Also disclosed is a beverage preparation system in which the capsule dispenser and beverage preparation machine are operatively linked by a control system. Methods of preparing a beverage using the beverage preparation system are also disclosed. Further disclosed are a computer program for a processing unit of the control system, along with a non-transitory computer readable medium that includes the computer program.

Abstract: The invention concerns a beverage dispenser comprising:—a housing (4)—at least two containers (2) for storing a water soluble beverage powder, each container comprising a tank (21) and an outlet (22),—at least two dissolution chambers (3), each being operatively linked to one of the containers (2) for preparing a beverage from the water soluble beverage powder and a diluent,—for each dissolution chamber (3), an extractor hood (5) at the top of said dissolution chamber,—an evacuating fan (6),—an extraction device (7) connected to each extractor hood (5) and to said evacuating fan (6), said extraction device comprising internal paths (71) for guiding flows from the extractor hoods through the extraction device, wherein:—the extraction device (7) is an essentially parallelepipedic box connected: to each extractor hood (6) through cooperating holes (71) on its front lateral side, and to the evacuating fan (36) through one cooperating holes (72) on one other lateral side,—the box of the extraction device is fully

Abstract: A handheld coffee tamper having a circular tamper base, connected to a handle, wherein the cross section design of the circular tamper base has a stepped configuration where the base of the tamper and the first rise of the first step has a sharp edge having a radius of less than 0.2 mm, where the rise of the first step is between 0.5 to 4.0 mm and the run of the first step is between 0.05 to 2.0 mm and where the second step forms the side wall of the tamper, where the side wall is at least 5.0 mm in height, and where tamper base has a Rockwell hardness of at least 25.

Abstract: A system that generates brewed beverages may receive requests to produce specified brewed beverages. The system may include a scheduler that initiates and controls the performance of one or more chemical or mechanical processes to produce the beverages. While one chemical or mechanical process for producing a beverage is being performed, other processes may be performed for production of the beverage or another beverage. The scheduler may determine the time at which to perform each process, the time at which a beverage should be presented, the resources to be used to perform the processes, or the time at which to perform a cleaning process, dependent on an actual or expected demand for beverages, or dependent on a target time for beverage retrieval. Shared resources may be applied to the production of beverages for high priority orders, while partially completed beverages for lower priority orders are staged for subsequent advancement.

Abstract: An apparatus and method for sharing capsule image data and beverage preparation parameters, from one or more beverage preparation machines with a remote computer system via a network, such as the Internet, is disclosed. The remote computer system may process the capsule image data to determine characteristics of the capsule (e.g., a type of capsule, such as a brand, or beverage ingredients in the capsule), thereby relieving the beverage preparation from having to determine information about the capsule. The remote computer may track a user's consumption of capsules, may compare this value to the user's past capsule purchase history, and may determine if the user's supply of capsules is below a threshold value (e.g., below a week's worth of capsules).

Abstract: A member with a first body having a through hole along a longitudinal axis thereof along which a beverage is fed from a percolation chamber. A first cup-shaped body is axially aligned under the first body, and a ball, which stops the flow of the beverage under the bias of a spring, is between the hole and the inside of the first cup-shaped body until the beverage reaches a given pressure. A second cup-shaped body houses the lower part of the first body and the first cup-shaped body and internally defines a chamber. A first through window is defined in the first cup-shaped body under the stopping zone of the flow in the hole; and a second through window is defined in the second cup-shaped body, through which contact between the beverage and air is made and is suited to feed the beverage from the chamber outwards.

Abstract: A connecting device is arranged for connecting a beverage machine (2) with an external liquid delivery system (3) to supply such liquid to the machine (2). The connecting device (1) has: a device body (16); an inlet (10) for a fluid connection to the external system (3); an outlet (13) for delivering liquid from the external system (3) via the inlet (10) to the machine (2); a valve arrangement (12a, 12b) switchable between an open configuration for establishing a fluidic connection between the inlet (10) and the outlet (13) and a closed configuration for interrupting the fluidic connection; and a control unit (14) for switching the valve arrangement (12a, 12b) between its open configuration and its closed configuration. The device body (16) has an assembly arrangement (16c; 16b, 16d, 16e, 16f) for reversibly or irreversibly assembling the device body (16) to the machine (2).

Abstract: An outdoor cooking device preferably constructed from sheet metal or other non-combustible material comprising a wok support tube and a circular disk to act as a heat shield attached to the support tube. The support tube contains vent holes or relief cuts above the heat shield. The outer diameter of the disk fits just inside the inner diameter of an outdoor cooker. The support tube allows a wok or similar cook pan to sit proud of the outer cooker walls. This arrangement channels hot air and fire from a heat source, typically charcoal contained within the device tube, to the surface of a wok to provide true high heat wok cooking.

Abstract: Examples are disclosed herein that relate to a cooking system. One example provides a cooking system including a body supporting a cooking surface, a grease trap receptacle positioned within the body, the grease trap receptacle including an opening to an outside of the body, a grease drain located adjacent to the cooking surface, the grease drain opening into the grease trap receptacle such that the grease drain and the grease trap receptacle define a watertight passage for water to flow from the cooking surface to the opening, and a grease trap movably positioned within the opening of the grease trap receptacle.

Abstract: An apparatus for cooking tamales includes a lid, a base, and a hinge. The lid comprises a semi-rigid, food safe material. It may have an elongated shape and a plurality of perforations to allow steam to pass through the lid. The base comprises a semi-rigid, food safe material. It may also have an elongated shape and a plurality of perforations to allow steam to pass through the base. The hinge connects the lid and the base such that the lid and the base define a cavity when closed against each other. The cavity defined by the lid and the base is shaped to hold a tamale for cooking.

Abstract: A cooking device that allows you to BBQ and smoke different foods on a grill is disclosed. The present invention allows for use with or without a rotisserie. It has a locking lid on one end which doubles as a locking mechanism with a handle. Each end has holes to allow for most rotisseries on the market. The holes at both ends of the can are offset. This creates a tumbling effect that helps stir the ingredients when turned.

Abstract: A grilling and toasting apparatus for cooking food includes a base and a grill plate rotatably mounted on the base. The grill plate has a first grilling surface and a second grilling surface located in different planes and cooperating with each other to define a substantially V-shaped included angle. The grill plate is configured to rotate between a first grilling position, in which the first grilling surface supports the food, and a second grilling position, in which the second grilling surface supports the food.

Abstract: A food reheating assembly for includes an oven that may have a slice of pizza positioned therein. A door is hingedly coupled to the oven. The door is positionable in an open position and a closed position. A heating element is positioned within the oven and the heating element heats the slice of pizza. A control is coupled to the front side and the control may be manipulated. The control is electrically coupled to the heating element such that the control turns the heating element on and off.

Abstract: A firebox assembly for generating smoke and conveying controlled amounts of smoke and air for a kamado oven. A firebox assembly has a door leading to a fire chamber, in turn, having an exit opening for smoke to flow into a smoke chamber. A chimney connected to the smoke chamber has slide gates to control the flow of smoke from the smoke chamber into the kamado oven. Further, the gates allow the smoke to be exhausted to the atmosphere and further allow atmospheric air to enter into the chimney eventually flowing to the kamado oven.

Abstract: A gas fire bowl has a heating portion which includes a pedestal, a fire bowl, a locking lid, a burner fixed in the fire bowl, gas parts communicating with the burner, and ignition parts housed and connected in the fire bowl and close to the burner. A portable BBQ grill portion can be installed on and detached from the fire bowl of the heating portion and the pedestal has a plurality of locking features. The portable BBQ grill portion includes a cooking plate and a grease cup having a pocket and removablely attached to outside of the fire bowl. The locking lid has portable features to cooperate with corresponding features of the fire bowl to make the gas fire bowl hand-held and potable. The device can be used as a gas fire bowl, also can be used as a BBQ grill in one unit with space and cost savings.

Abstract: A portable temperature regulating food conveying device may include a lid and a base. The base may be coupled to four sidewalls which may extend up and away from the base. The sidewalls may each be coupled to two other sidewalls to form a generally rectangular prism shaped container which may define a cavity for receiving one or more food items and/or food containers. The lid may be coupled to the top of one or more sidewalls thereby allowing the lid to govern access to the cavity. A liner may be removably positioned within the cavity proximate to the base and sidewalls. One or more temperature modifying units may be in thermal communication with the cavity and the liner and may be configured to modify or to maintain the temperature of the cavity and items received within the cavity.

Abstract: A thermos flask comprises a container that has, on the upper side, an opening on which a lid is held. The lid closes the opening when in a closed position and is able to be at least partially moved by means of an actuation element in order to partially release the opening such that liquid can be poured out. The lid is able to be placed on a receiving portion of the container and is held in the closed position by means of a detent.

Abstract: A device for frothing milk and liquid food is disclosed having a frothing rotor and a motor adapted to rotate the frothing rotor, a seat adapted to substantially entirely contain the frothing rotor an inlet for feeding the milk or liquid food into the seat, an air inlet and an outlet of the milk or liquid food from the seat.

Abstract: A food processor includes a base, a motor disposed within the base, a drive shaft operatively connected to the motor and extending outwardly from the base, the output shaft being rotatable upon actuation of the motor, a bowl mounted on the base for containing food items, a modular lid for covering the bowl and having an opening therein, and a removable attachment receivable by said opening.

Abstract: A food processor includes a base, a motor disposed within the base, a drive shaft operatively connected to the motor and extending outwardly from the base, the output shaft being rotatable upon actuation of the motor, a bowl mounted on the base for containing food items, a lid for covering the bowl and having an opening therein, at least one storage container receivable within said bowl, and an indexing mechanism engageable with the at least one storage container and being operable to selectively index the storage container within the bowl.

Abstract: A tool for compression of food within food cans is provided having a handle engaged with a body with first and second supports. A threaded member engaged with a first support when rotated translates a contact member against a lid of a can on a support surface of the opposing second support to compress food in the can between a lid and the bottom of the can. The tool can in include a plurality of contact members sized to engage different diameter sized cans.

Abstract: A system for a combination utensil and strainer tool. The tool has a utensil portion. Attached to and downstream from the utensil portion is the straining portion. Attached to and downstream of the straining portion is the handle portion. A user can use the utensil portion to stir, cook, and other functions. The user can thereafter use the same tool as a strainer.

Abstract: A cooking utensil handling device comprising: a covering body that defines a receiving space, an opening to the receiving space adapted for insertion of a hand of a user, and at least a first aperture in communication with the receiving space and adapted for extension of a first portion of a utensil therethrough, wherein the receiving space is adapted to receive a handling portion of the cooking utensil such that the handling portion of the cooking utensil can be grasped by the hand of the user within the receiving space.

Abstract: A collapsible storage apparatus is provided. Articles may be placed in the apparatus for draining, drying, washing, and the like. The apparatus may be opened for use, and may be collapsed for storage in place. The apparatus is joinable to a nearby surface, for instance, an interior surface of a sink, facilitating ready use and positioning.

Abstract: Aspects of embodiments of the contemplated invention disclose a bath tub having a distal end, a proximal end, a left side connecting the distal and proximal ends from a first direction and a right side connecting the distal and proximal ends from a second direction. The bath tub derives its advantage over existing bath tubs in that it provides placement of bathing supplies, items and accessories within recessed cavities found in the bath tub thereby allowing for a more relaxing bathing experience for users and an organized storage for the bathing supplies, items and accessories.

Abstract: Shower caddies with vertically and horizontally movable baskets are disclosed. Each basket is independently adjustable by a mechanism including a front plate, a rear plate and a draw fastener, which allows the user to adjust both the vertical and horizontal position of the basket from a single control point for simple and easy operation. The shower caddies may also include a tilt-resisting locking mechanism that resists rotation of the caddies when supporting an uneven load.

Abstract: Described is a prefabricated bathtub or shower pan with curved outer edges and an elevated threshold that act as returning points for water. More specifically, the bathtub or shower pan are formed to include a drain area surrounded by interior sides and a threshold dam. A side ledge is formed atop each of the interior sides, each side ledge having a top edge. Surrounding walls rise from the top edge of each side ledge. Further, the threshold dam has an angled top surface with a lower edge. Notably, the lower edge of the angled top surface is higher than the top edge of each of the side ledges to prevent, any water from running from the side ledges onto the threshold dam. The bathtub or shower pan also include curved outer edges that transition from a side wall and onto the threshold dam to return water to the drain area.

Abstract: The invention provides a bathroom fixture in the form of an electronic mirror with a touchlessly operated fluid dispenser. The device provides visual cues to assist in the touchless operation thereof.

Abstract: System for dispensing a foam of a fluid product having a head wherein a mixing chamber of the product with air is formed. The head has a passage for product; a unit for foaming with a passage for supplying with a mixture coming from the chamber and a passage for dispensing the foam; a supply valve of the mixing chamber has a product valve and an air valve; the valves are arranged to open the passage for product and for air respectively in order to supply the mixing chamber; and a passage for return air provided with an air return valve arranged to open under the effect of a vacuum that the source of air exerts on it in order to allow for the air return in the source through the head. The supply valve has a membrane whereon the product and air valves are formed.

Abstract: A character-shaped porous mitt for housing and dispensing soap comprised of an outer body formed from terry cloth or similar material and a sponge-like material lining an interior cavity containing a soap pocket in which to hold bar or liquid soap that is fastened using a hook-and-loop fastener. An area at the mouth, the body or the rear of the mitt through which the bar of soap or the liquid soap can be received and housed until the soap mixes with water to produce a rich lather with which to cleanse a user's body. Finger pockets or loops are configured to receive the fingers of a user to allow the user to securely hold the mitt, even in the presence of rich lather. A rough-textured portion of the outer body provides added friction between the outer body and skin of a user to allow the user to scrub or exfoliate his or her skin.

Abstract: A method of stacking a plurality of absorbent sheet products is provided. In an embodiment, the method includes folding an absorbent sheet inwardly along a first folding line to form a first inner panel, folding the absorbent sheet inwardly along a second folding line, substantially parallel to the first folding line, to form a second inner panel, folding the absorbent sheet along a third folding line substantially perpendicular to the first and the second folding lines to form a first outer panel and a second outer panel, sandwiching the first and the second inner panels therebetween to obtain one of the absorbent sheet products, and inserting at least a section of at least one of the first and the second outer panels of each one of the absorbent sheet products between the first and the second outer panels of an adjacent one of absorbent sheet products of the stack.

Abstract: The Automatic Hand-Free Toilet Paper Dispenser will automatic dispense a small amount of toilet paper as the person wave their hand across the electrical sensor. Along with the electric sensor there is a digital display readout that will show the number of sheet being dispense. Once the dispenser run out of sheets there will several flashes on the digital display to let you know that it's time replace the rolls of tissue paper.

Abstract: A portable children's toilet system, a handheld children's toilet kit and a pram is disclosed. The portable children's toilet system includes a collapsible children's toilet and a collapsible privacy screen, for providing privacy to a child using the collapsible children's toilet. Advantageously, the portable children's toilet system is easy to carry, for example on a pram, and can be used on demand. As such, reliance on public toilets is avoided.

Abstract: A portable urinal is arranged for coupling with a bottle having a bottle opening, wherein the portable urinal includes an urine collector having a funnel channel for receiving urine expelled by a user, and an attachment head including a detachable lid extended from the urine collector for detachably coupling at the bottle opening of the bottle, and a tubular urinal guider extended from the detachable lid for inserting into the bottle opening of the bottle when the detachable lid is coupled at the bottle opening of the bottle so as to guide the urine into the bottle from the funnel channel. After use, the portable urinal is detached from the bottle and a bottle cap is re-placed at the bottle opening to seal the urine in the bottle.

Abstract: A planar surface cleaning system including a main body, at least one vacuum source, and a cleaning component is disclosed. The main body includes a bottom portion, wherein the bottom portion defines an outer portion defining a surface area about a perimeter thereof and an inner portion defining a cavity formed within the outer portion. The at least one vacuum source is supported by the main body and is in fluid communication with the cavity. The cleaning component covers the surface area defined on the outer portion and is removably connected to the outer portion. The planar surface cleaning system further includes a handle portion. The handle portion may be connected to the main body via a U portion.

Abstract: A hand vacuum cleaner may have an air treatment member and a pre-motor filter downstream from the air treatment member. A suction motor and fan assembly may be is positioned downstream of and below the pre-motor filter, a post motor filter may be positioned downstream of the suction motor and fan assembly and in the lower end of the hand vacuum cleaner. A clean air outlet may be positioned below the suction motor and fan assembly whereby air travels downwardly from the suction motor and fan assembly and through the post motor filter to the clean air outlet.

Abstract: A hand vacuum cleaner may include a suction motor and fan assembly that is positioned downstream of a pre-motor filter and in an upper end of the hand vacuum cleaner. A post motor filter may be positioned downstream of the suction motor and fan assembly and may be in the lower end of the hand vacuum cleaner. The clean air outlet may be positioned below the suction motor and fan assembly whereby air may travel generally downwardly from the suction motor and fan assembly and through the post motor filter to the clean air outlet.

Abstract: A vacuum cleaner includes a suction nozzle defining a nozzle inlet, a manual nozzle height adjustment assembly for adjusting the height of the nozzle inlet relative to a surface to be cleaned, and a bleed valve fluidly connected to a working air path of the vacuum cleaner to selectively open to reduce suction at the nozzle inlet. The bleed valve is incorporated with the nozzle height adjustment assembly such that movement of the nozzle height adjustment assembly between different height settings will automatically open or close the bleed valve.

Abstract: A coverage robot including a chassis, multiple drive wheel assemblies disposed on the chassis, and a cleaning assembly carried by the chassis. Each drive wheel assembly including a drive wheel assembly housing, a wheel rotatably coupled to the housing, and a wheel drive motor carried by the drive wheel assembly housing and operable to drive the wheel. The cleaning assembly including a cleaning assembly housing, a cleaning head rotatably coupled to the cleaning assembly housing, and a cleaning drive motor carried by cleaning assembly housing and operable to drive the cleaning head. The wheel assemblies and the cleaning assembly are each separately and independently removable from respective receptacles of the chassis as complete units.

Abstract: A cleaning apparatus includes a combing unit including a series of spaced protrusions or teeth extending into a cleaning roller for preventing build up and removing debris (such as hair, string, and the like). The protrusions extend along a substantial portion of the cleaning roller and extend partially into the cleaning roller to intercept the debris as it passes around the roller. The protrusions have angled leading edges that are not aligned with a rotation center of the cleaning roller and are directed into or against a direction of rotation of the cleaning roller. The combing unit and protrusions have a shape and configuration designed to facilitate debris removal from the cleaning roller with minimal impact on the operation of the cleaning apparatus. The cleaning apparatus may include a surface cleaning head of an upright vacuum cleaner or sweeper or a robotic vacuum cleaner.

Abstract: A nozzle (10) for a floor cleaning device, suitable for both wet and dry cleaning, the nozzle comprising an airflow inlet (50) at a front end of the nozzle, and a detachable cleaning device (90) that, if mounted on the nozzle (10), lifts a rear end of the nozzle.

Abstract: A vacuum cleaner attachment is disclosed having a concave vacuum head with a swivel joint that permits swiveling of the vacuum head only within the plane of the vacuum head. The concave vacuum head can have a curvature that is similar to the curvature of a cylindrical surface to be vacuumed. Thus, while a user manipulates the conduit providing the air suction to the vacuum head, the concave surface can be supported and swiveled around the circumference of the cylindrical surface to be vacuumed, while the vacuum head is also moved along the length of the cylindrical surface. Throughout this movement of the concave vacuum head, the concave opening of the concave vacuum head can stay in closer proximity and conformity to the cylindrical surface than is possible using a fixed vacuum head with a flat opening, thereby making cleaning of the cylindrical surface more effective and efficient.

Abstract: Provided herein is a dust measuring apparatus. The dust measuring apparatus includes: a body; a window unit exposed to the outside through an opening part of the body, such that dust present in the outside is gathered on the window unit; a light emitting unit emitting light to the window unit; a light receiving unit receiving light reflected from the window unit; and a controlling unit measuring an amount of dust gathered on the window unit on the basis of strength of the emitted light and strength of the received light.

Abstract: An autonomous floor-cleaning robot comprising a housing infrastructure including a chassis, a power subsystem; for providing the energy to power the autonomous floor-cleaning robot, a motive subsystem operative to propel the autonomous floor-cleaning robot for cleaning operations, a command and control subsystem operative to control the autonomous floor-cleaning robot to effect cleaning operations, and a self-adjusting cleaning head subsystem that includes a deck mounted in pivotal combination with the chassis, a brush assembly mounted in combination with the deck and powered by the motive subsystem to sweep up particulates during cleaning operations, a vacuum assembly disposed in combination with the deck and powered by the motive subsystem to ingest particulates during cleaning operations, and a deck adjusting subassembly mounted in combination with the motive subsystem for the brush assembly, the deck, and the chassis that is automatically operative in response to an increase in brush torque in said brush

Abstract: A vacuum cleaner main body includes a main body case, a camera provided in the main body case and that can perform imaging at a given angle of view, a driving wheel that allows the main body case to travel, and a controller. The controller includes at least a traveling mode and an imaging mode. In the traveling mode, the controller controls the drive of the driving wheel to allow the main body case to travel autonomously. In the imaging mode, the controller controls the main body case to autonomously travel to a given imaging position so that the camera sequentially images still images in a plurality of adjacent directions at an angle equal to or smaller than the angle of view. The vacuum cleaner main body can securely image, with the camera, a wide range without any blind spots.

Abstract: An autonomous floor-cleaning robot comprising a housing infrastructure including a chassis, a power subsystem; for providing the energy to power the autonomous floor-cleaning robot, a motive subsystem operative to propel the autonomous floor-cleaning robot for cleaning operations, a command and control subsystem operative to control the autonomous floor-cleaning robot to effect cleaning operations, and a self-adjusting cleaning head subsystem that includes a deck mounted in pivotal combination with the chassis, a brush assembly mounted in combination with the deck and powered by the motive subsystem to sweep up particulates during cleaning operations, a vacuum assembly disposed in combination with the deck and powered by the motive subsystem to ingest particulates during cleaning operations, and a deck adjusting subassembly mounted in combination with the motive subsystem for the brush assembly, the deck, and the chassis that is automatically operative in response to an increase in brush torque in said brush

Abstract: A fluid suction device includes an elongate handle having a suction head at its distal end. The suction head extends in opposing directions substantially perpendicularly to the handle. The suction head includes an elongate longitudinal aperture in its outer wall in fluid communication with a suction pump. An absorbent panel covers the longitudinal aperture. When the suction head is applied to a spilled fluid, the wicking action of the absorbent panel and the negative air pressure from the suction pump allows rapid and efficient cleaning of an area affected by a fluid spill. The device also allows for safe and efficient removal of potentially dangerous objects such as broken glass. The device collects fluid in a waste reservoir so that it is easily disposed of.

Abstract: An extractor cleaning machine that includes a base having a base exhaust duct having an exhaust outlet directed toward a surface being cleaned. The extractor further includes a suction source that is operable to generate an airflow that is discharged through the exhaust outlet of the base and onto the surface, which is configured to at least partially dry the surface. The extractor further includes a body pivotally coupled to the base such that the body is pivotable between an upright position and an inclined position, and the body includes a body exhaust duct that is movable relative to the base exhaust duct as the handle pivots between the upright position and the inclined position. The base exhaust duct and the body exhaust duct cooperate to form an exhaust passageway between the suction source and the exhaust outlet.