Abstract: A system for dispensing sprayable material such as paint and other liquefied products. The system includes a dispenser designed to accept a flexible, crushable, container filled with sprayable material and having a valve and spray tip at one end. The container is placed into a slot in the dispenser with the valve on the container secured in the housing of the dispenser. In operation, a plunger that runs lengthwise within the housing of the dispenser exerts force on the bottom of the container crushing it as it is emptied and forcing the sprayable material out through the valve and spray tip.

Abstract: A hydration system includes first and second opposing flexible walls that form a bladder having a sealable compartment for containing a liquid. The system includes a drinking tube having a first end with a valve and a second end. A first port is configured to receive pressurizing gasses into the compartment. A second port is configured to provide fluid communication between the compartment and the drinking tube. The third port allows liquid to be supplied into the compartment. A first baffle and a second baffle connect the opposing walls within the compartment. The first and second baffles are configured to oppose expansion of the bladder as the pressurizing gasses are introduced into the compartment. A space between the first and second baffles is accessible via the third port. The space is configured to receive and secure a thermal pack. The thermal pack is insertable and removable via the third port.

Abstract: A liquid dispensing system for use with a bag having a pre-attached spigot includes a cavity arranged to receive the bag of liquid. A spigot-recess is configured to engage the spigot of the bag of liquid. A top plate assembly is locatable at or near the top of the system, the top plate assembly including a pressure plate arranged to apply a downward force on the bag of liquid. The system also includes a lifting plate arranged to apply an upward pressure on the bag of liquid.

Abstract: A dispenser pack for a free-flowing medium includes a metering pump, a container that is tightly connected to said metering pump and that can be ventilated by the pump, and a closing cap. The free-flowing medium within the container is enclosed by a bag made of a flexible material with an upper aperture rim of the bag being tightly connected in one part/piece to a wall of the container, and a space between the inside of the container wall and the outside of the bag being at atmospheric pressure.

Abstract: An integrated beverage blending system comprising: a controller for menu selection; an ice portion control module; an ingredient module; a dispensing apparatus in communication with the ice portion control module and the ingredient module, wherein the ice and the ingredient are dispensed into a beverage container via the dispensing apparatus.

Abstract: Liquid dispensing systems for use with a bag having a pre-attached spigot are shown and described, in one example, a system includes a cavity for receiving the bag of liquid. A spigot-recess is configured to engage the spigot. A top plate assembly is locatable at or near the top of the system, the top plate assembly including a pressure plate for placing downward force on the bag of liquid. The system also includes a lifting plate for placing an upward pressure on the bag of liquid.

Abstract: The present invention relates to a packaging combination for accommodating and dispensing a filling material. The packaging combination comprises a tubular casing having a first end, a second end and a central axis extending through first and second ends, wherein the tubular casing is tightly filled with filling material and closed at its first and second end by a closure means. The packaging combination further comprises a dispensing system including a dispensing device having a passageway extending through the dispensing device with an inlet opening at its one end and an outlet opening at its other end and being attached to the first end of the tightly filled tubular casing, the first end of the tubular casing extending inside the passageway. The system further comprises a dispensing cap having an attachment end and a dispensing end reversibly attachable to the outlet opening of the dispensing device, by its attachment end.

Abstract: Disclosed is a hydration device including at least one fillable bladder in fluid communication with a first end of an adjustable semi-rigid tube; a first valve connected to a second end of the adjustable semi-rigid tube; a base configured to transmit at least a portion of a user's weight as a positive pressure to the at least one fillable bladder; and a support structure connected to the base and the adjustable semi-rigid tube.

Abstract: A combination beverage concentrate and concentrate bag and an apparatus for using the combination. The combination is adapted for use in the preparation of a finished beverage having a first volume of the beverage concentrate and a second volume of diluent. The concentrate bag is flexible, disposable and has a volume equal to or greater than the sum of the first volume and the second volume. A first volume of the beverage concentrate is disposed within the concentrate bag. The apparatus is adapted to accept the diluent-filled combination, mix the diluent with the beverage concentrate and dispense finished beverage from a dispenser. In the dispensing system, connections for providing diluent or a pressurizing agent to the beverage concentrate or to the finished beverage are located at the dispenser outlet opening or upstream of that opening.

Abstract: The present invention provides a dispenser (1) having a housing (2) containing a replaceable unit (10) whereby the dispenser has a handle (3) comprising a fixed portion (4) and an actuator portion (5) with the handle being mounted at the top of the dispenser, with an outlet of the dispenser located at the bottom of the dispenser. The dispenser (1) in accordance with the present invention permits the dispenser to be carried and operated simultaneously in a vertical position avoiding the need to reorientate the dispenser prior to dispensing a fixed measure of concentrate (12).

Abstract: A jug for retaining a plastic bag containing a liquid and a method of using the same. The jug includes a bottom and a peripheral wall extending upwardly therefrom and defining a cavity for receiving the bag. The peripheral wall terminates in a rim and a handle extends outwardly from the peripheral wall's exterior surface. An engagement means is provided on the jug to engage the bag and retain it within the cavity when the jug is tilted to pour the liquid therefrom. The engagement means preferably is a slit defined in the rear region of the peripheral wall adjacent the handle. The slit originates in the rim and extends downwardly for a distance. A portion of a rear region of the bag is slid into the slit and wedged therein. The wedged portion extends into a compartment defined by a retaining wall that extends outwardly from the peripheral wall.

Abstract: Device adapted to deliver fluids, in particular medicines, under pressure, comprising a receptacle 1 of variable volume in a form or shape of a pouch or flexible container of general cylindrical shape with exclusively longitudinal pleats 2 containing the fluid under pressure to be delivered and equipped with an actuator C permitting to open a valve 15a, 15b, to enable the aforementioned fluid to be delivered, the whole being located inside a receptacle 4 capable of resisting to an elevated internal pressure, the internal volume of this last receptacle comprised between its wall and the receptacle of variable volume being filled with a neutral gas under a pressure sufficient to exert on the receptacle of variable volume a pneumatic constraint sufficient to permit the delivery of the therein contained fluid when the above-said valve permitting the said delivery is operated by the aforementioned actuator C.

Abstract: A valve for distributing two fluids contained in a rigid flask by propulsion, the first fluid contained in a first flexible pouch, and the second fluid in the flask so as to be isolated from the first fluid before the fluid leaves through the valve. When the valve is placed on the flask, an internal part of the valve is inside the flask, an external part of the valve is outside the flask. A first passage which can be closed connects the inside of the first pouch and the space surrounding the external part of the valve, and a second passage which can also be closed connects the space intended to receive the second fluid and the space surrounding the external part of the valve. The valve has a second flexible pouch for receiving the second fluid, which is fixed to the valve and placed around the first pouch.

Abstract: A soap dispensing assembly includes a soap container and a universal dispenser. The soap container is capable of having a liquid pump or a foaming pump attached to it. The universal dispenser is adapted to house and dispense soap from the soap container regardless of whether the container has a liquid pump or a foaming pump. Using this assembly, a manufacturer may sell the universal dispenser and offer to sell the consumer liquid and foamable soap for use with the same dispenser.

Abstract: The invention relates to a container (1) for liquids, such as beverages and oils, comprising a blow moulded polyester casing (2), a valve (4) for dispensing the liquid from the container, and an inlet for introducing a propellant. The casing (2) is enveloped by a stretch blow moulded polyester shell (9).

Abstract: A fluid storage container includes a container body provided with an interior space for storing a fluid and an opening for guiding the fluid from the interior space to the outside. A lid covers the opening of the container and is provided with a discharge opening for the fluid. The discharge opening is configured so that the discharge opening is normally in a closed state, sealed by a plug, but is set to an open state when extracting the fluid from the container body. Thus, outside air and impurities are prevented from entering the container, which prevents the degradation of the contents of the container and thereby drastically increases the lifespan of the contents.

Abstract: A clamping system secures a discharge spout of a bulk storage bag to an outer surface of a process interface connection. The clamping system includes a first clamping arm and a second clamping arm. Each clamping arm has a fixed end and a free end arranged such that the free end can pivot about the fixed end between a clamping position and an open position. Each clamping arm has an inner clamping surface configured to clamp a portion of the discharge spout against a portion of the outer surface of the process interface connection when the clamping arm is in the clamping position. The inner clamping surfaces are arranged such that when the first and second clamping arms are in the clamping position, the inner clamping surfaces cooperate to clamp the discharge spout against substantially the entire outer surface of the process interface connection.

Abstract: A system for applying coatings and more specifically paint coatings is provided that combines fluid stored in separate reservoir containers prior to expelling the mixture for application. The reservoirs may be comprised of collapsible and disposable bags that eject its fluid upon activation of an actuator or expanding bladder. The fluid components are combined and blended together in a mixer that is positioned between the reservoirs and a nozzle.

Abstract: The present disclosure relates to a blow-molded, rigid collapsible liner that can be suitable particularly for smaller storage and dispensing systems. The rigid collapsible liner may be a stand-alone liner, e.g., used without an outer container, and may be dispensed from a fixed pressure dispensing can. Folds in the rigid collapsible liner may be substantially eliminated, thereby substantially reducing or eliminating the problems associated with pinholes, weld tears, and overflow. The present disclosure also relates to systems and liners, including the liners just mentioned, that may be used as alternatives to, or replacements for, simple rigid-wall containers, such as those made of glass. Such advantageous systems and liners may replace simple rigid-wall containers in a system for delivering a high purity material to a semiconductor process substantially without modification to an end user's existing pump dispense or pressure dispense systems.

Abstract: A spike for dispensing fluids from a flexible bag, wherein the spike includes multiple fluid channels which transfer liquids from the bag to an enclosed dispensing chamber and air from the enclosed chamber to the bag to permit and control fluid flow within the system.

Abstract: An assembly for dispensing a beverage from a beverage container includes a cooling chamber containing a pressure chamber configured to accommodate the container and having a lid with a lid opening. The assembly further includes a dispensing tower and a dispensing line channel extending between a lower opening in the cooling chamber and an upper end in the tower. The lid opening is alignable with the lower opening of the channel so that the lid opening provides a guiding element for the passage of a dispensing line between the pressure chamber and the tower through the channel. A method of guiding the dispensing line includes opening the lid of the pressure chamber; aligning the lid opening with the lower opening of the channel; and guiding the dispensing line so that it extends through the lid opening and the channel.

Abstract: A liquid supply assembly is disclosed. The liquid supply assembly may be used in combination with a spraying device or spray gun to apply liquid to a substrate. The liquid supply assembly is particularly suitable for use in systems utilizing pressurized liquid containers.

Abstract: A bag spout retainer apparatus for a bulk bag discharger is the disclosure of the type wherein a frame suspends a bulk bag with a side-secured discharge spout, and the spout is held in a closed position against the bag. A bag-engaging member is mounted on the frame in a position laterally-displaced from a lower end of the bag above the discharge spout. A reciprocating driver is attached to the bag-engaging member and is adapted for moving the bag-engaging member between a retracted position out of engagement with the lower end of the bag and an extended bag engaging position for engaging and holding the bag spout in a closed position against the side of the bag during release of the spout against the side of the bag.

Abstract: The invention is a closure for the aperture of a pressure driven dispensing container. The closure includes (a) an outer shell having a planar base including an outer first main surface and an inner second main surface. The base includes a dispensing aperture fluidly connecting the outer surface to the inner surface and receives a dispensing tube. An outer peripheral skirt juts out of the inner surface and seals the closure to the aperture of the container. The closure also includes (b) a flexible valve in contact with the inner surface located within the outer peripheral skirt and defining an interior passageway having a first opening at one end adjacent to and in fluid communication with the first dispensing aperture and having a second opening at the other end of the passageway, wherein the flexible valve is resiliently biased so that it naturally shuts and seals the second opening.

Abstract: The present invention relates to a module (28) for a modular pressure distribution system (8) comprising a plurality of modules. The module (28) comprises a frame (60, 60?, 61, 61?) defining an outer periphery and a space defined within the outer periphery and a pressure chamber (22) for receiving a beverage container (68), the pressure chamber being arranged within the space. The module further comprises a first type connector (46) and a second type connector (48) positioned at the outer periphery. A fluid path (47) establishes fluid communication from the first type connector to the second type connector. The first type connector (46) is connectable to a connector of the second type connector (48) of a neighbouring module, and the first type connector is adapted to receive a pressure-fluid from a pressure-fluid source. The second type connector is adapted to transfer the pressure-fluid to a first type connector of a neighbouring module.

Abstract: Systems are described for delivery of a wide variety of materials in which liquid and gas or vapor states are concurrently present, from a package preferably including a fluid-containing collapsible liner. Headspace gas is removed from a pressure dispensing package prior to liquid dispensation therefrom, and ingress gas is removed thereafter during dispensation operation. At least one sensor senses presence of gas or a gas-liquid interface in a reservoir or gas-liquid separation region. A gas removal system including an integral reservoir, at least one sensor, and at least one flow control elements may be included within a connector adapted to mate with a pressure dispensing package, for highly efficient removal of gas from the liquid being dispensed from the container.

Abstract: In one embodiment, a bag-in-box container includes a fluid containment bag including a pliable body and a dispensing spout that extends from the body, the spout including a neck and a collar that extends outward from the neck, a carton in which the bag is positioned, the spout of the bag being recessed within an interior space of the carton, and a locking member placed in contact with the neck that secures the spout in a predetermined position within the carton interior space.

Abstract: The container produced in a coextrusion-type blow molding process, which consists of a substantially rigid outer container and an easily deformable inner bag, with the inner bag being closed by a bottom weld seam when excess material is squeezed off at the bottom of a blow mold, and said bottom weld seam being clamped in a likewise closed bottom weld seam of the outer container, at least one pressure compensating opening being formed on both sides of the bottom weld seam, and all pressure compensating openings being formed at points of the outer container that are offset in the circumferential direction from the intersection lines of a plane extending through the bottom weld seam and through the longitudinal center axis of the container with the circumferential wall of the outer container and of the inner bag so that the inner bag contracts only from two sides when the container contents is dispensed, is characterized in that the wall thickness of the inner bag is greater in the area of the intersection lines

Abstract: The present invention relates to a bag-on-valve system (10) comprising a pressure container (12) having a substantially flexible filling material container (14) which is received therein and in which a filling material (22) having unsaturated compounds, preferably terpenes, particularly preferably limonenes, is received and can be removed from the bag-on-valve system (10) by means of a selectively actuatable valve (20), a propellant, preferably a propellant gas, being provided in order to support the removal between the pressure container (12) and the filling material container (14) so that a flexible sheath (16) of the filling material container (14) is in contact with the filling material (22) at the inner side (16a) thereof and is in contact with the propellant at the outer side (16b) thereof, the sheath (16) of the filling material container (14) further being substantially formed from a flexible film laminate (30) which has a metal layer (32), a plastics layer (42) and a thermally sealable sealing layer

Abstract: An oral hydration system includes a mounting fitting configured to be mounted to a mounting structure and a holster rotatably coupled to the mounting fitting. A hydration liquid bladder is removably disposed in the holster. A feed tube has a proximal end communicating with the hydration liquid bladder. A backflow-prevention bite valve is coupled to a distal end of the feed tube.

Abstract: A drinking-water dispenser comprising: a containment chamber for the water; a delivery device, which is designed to enable or prevent outlet of the water from the containment chamber so as to enable a user to draw off water from the dispenser; a connection device for enabling installation of a replaceable refill reservoir on the dispenser and for setting the dispenser and the refill reservoir in fluid communication; and a collector, which in turn comprises a substantially limp sac set within the containment chamber and connected in a releasable way to the connection device and to the delivery device.

Abstract: Embodiments relate to a dispenser including a container including a containment portion and a handle portion, the handle portion containing an actuating device to selectively actuate a pump; the containment portion defining a chamber, wherein the chamber may include at least a first interior side, and wherein the first interior side comprises at least a first zone comprising a first tackiness characteristic and a second zone comprising a second tackiness characteristic, such that the first tackiness characteristic exceeds the second tackiness characteristic.

Abstract: A dispensing device for a viscous edible product, with a storing unit for storing the viscous product, and a dispensing unit. The dispensing unit includes a flexible packing tube for packing and dispensing the food product, disposed within the dispensing unit such that it comprises a substantially linear portion adjacent its dispensing opening, compression components for pinching said linear portion of tube, compression components being movable in substantially perpendicular and parallel directions relative to the longitudinal axis of the tube, actuation components for reversibly moving said compression components firstly in a direction substantially perpendicular to the longitudinal axis of the packing tube to releasably pinch at least one portion of the flexible tube, and secondly in a direction parallel to the longitudinal axis of the tube towards its dispensing opening, so as to dispense at least one portion of the product packed in the tube.

Abstract: A system for dispensing fluids wherein a support structure holds bulk fluid contained within a bag that is transferred from the bag to an enclosed chamber in a dispensing base, from which chamber the fluid is dispensed, via a puncturing device utilizing multiple spikes. After dispensing air pressure in the enclosed chamber is equalized with the air pressure acting on the bulk fluid by at least one of the spikes.

Abstract: Presently, when the liquid inside a fluid dispenser (such as a condiment dispenser) is low, a person has to turn the fluid dispenser upside down to cause the fluid to migrate towards the spout for squirting out. The problem associated with having to turn the fluid dispenser upside down is that the fluid can seep through a vent hole and dry up the vent hole when the fluid dries up. The present invention features a fluid dispenser that can dispense a fluid contained therein without having to flip the dispenser upside down to have the fluid migrated to the spout.

Abstract: The present invention relates to a container having a hollow shell defining a body with a dispensing aperture, and a bag within the shell, the open end of the bag extending through the dispensing aperture and being secured with respect to the outside of the shell. The bag is made from a material suitable for containing the intended contents of the container. The shell may be formed from a material that would not be suitable for containing the intended contents of the container alone. The shell may be formed from a biodegradable material, such as wood or paper pulp. The bag may be separated from the main body of the container to allow for separate disposal. The container may be sealed by providing a spout through which the contents of the container are to be dispensed, and by folding the spout over to create a nip which seals the container.

Abstract: The present invention relates to a container having a hollow shell defining a body with a dispensing aperture, and a bag within the shell, the open end of the bag extending through the dispensing aperture and being secured with respect to the outside of the shell. The bag is made from a material suitable for containing the intended contents of the container. The shell may be formed from a material that would not be suitable for containing the intended contents of the container alone. The shell may be formed from a biodegradable material, such as wood or paper pulp. The bag may be separated from the main body of the container to allow for separate disposal. The container may be sealed by providing a spout through which the contents of the container are to be dispensed, and by folding the spout over to create a nip which seals the container.

Abstract: A container comprising a rigid body (5) having a neck (6) defining an aperture providing access to the container cavity and a bag (9) positioned in the interior of the body (5), the bag being formed of thermoplastic material and having a neck (2) from which there radially extends a flange (3) which rests on a free edge of the neck (6) of the body (5) and defines a hole for providing access to the cavity of the bag (9) and for sealedly housing the body of a hermetic pump (P) operable manually to withdraw the fluid substance (F) from the bag and feed it to the outside through its dispensing stem (S), the bag being formed by hot blow molding of a preform placed directly within the container, a lubricant fluid being disposed between said container and said bag.

Abstract: A container comprising a rigid body (5) having a neck (6) defining an aperture providing access to the container cavity and a bag (9) positioned in the interior of the body (5), the bag being formed of thermoplastic material and itself having a neck (2) from which there radially extends a flange (3) which rests on a free edge of the neck (6) of the body (5) and defines a hole for providing access to the cavity of the bag (9) and for sealedly housing the body of a hermetic pump (P) operable manually to withdraw the fluid substance (F) from the bag and feed it to the outside through its dispensing stem (S), the bag being formed by hot blow molding of a preform placed directly within the container, said bag having a substantially uniform thickness and being detached from the container along its entire outer surface.

Abstract: A dispenser for relative rapid cooling or heating of the contents of a liquid storage container provides a receptacle for receiving the liquid storage container therein and positioning a thermal transfer portion of the liquid storage container in thermal conductive relationship with a thermal conduction pad associated with the receptacle. Thermal energy is effectively and efficiently transferred from the thermal conduction pad to the liquid in the liquid storage container. The thermal conduction pad is controlled to provide and maintain the desired temperature to the liquid. The liquid is dispensed directly from the container. Various types of containers can be used in the dispenser, with a special bag-in-box container having a inner container and outer box with thermal conduction windows in the box to provide good heat transfer between the thermal conduction pads and the inner container constituting an aspect of the invention. A special rigid container can also be used.

Abstract: A hair removal device is provided, comprising a handle and a collapsible reservoir suitable for containing a fluid to be dispensed during use of the hair removal device, the hair removal device additionally comprising a container enclosing the collapsible reservoir, a fluid outlet adapted to allow fluid to exit both the collapsible reservoir and the container, an orifice adapted to allow air to flow in or out of the container, and a suction device, adapted to suck fluid out of the collapsible reservoir through fluid outlet. The container can be rigid, deformably rigid, or a combination of both.

Abstract: The present invention relates to a container having a hollow shell defining a body with a dispensing aperture, and a bag within the shell, the open end of the bag extending through the dispensing aperture and being secured with respect to the outside of the shell. The bag is made from a material suitable for containing the intended contents of the container. The shell may be formed from a material that would not be suitable for containing the intended contents of the container alone. The shell may be formed from a biodegradable material, such as wood or paper pulp. The bag may be separated from the main body of the container to allow for separate disposal. The container may be sealed by providing a spout through which the contents of the container are to be dispensed, and by folding the spout over to create a nip which seals the container.

Abstract: The present invention relates to a container having a hollow shell defining a body with a dispensing aperture, and a bag within the shell, the open end of the bag extending through the dispensing aperture and being secured with respect to the outside of the shell. The bag is made from a material suitable for containing the intended contents of the container. The shell may be formed from a material that would not be suitable for containing the intended contents of the container alone. The shell may be formed from a biodegradable material, such as wood or paper pulp. The bag may be separated from the main body of the container to allow for separate disposal. The container may be sealed by providing a spout through which the contents of the container are to be dispensed, and by folding the spout over to create a nip which seals the container.

Abstract: A portable liquid applicator system and a method for applying liquid directly from an original package container, e.g., a five-gallon bucket, to a surface. The system includes a wheeled platform onto which the container is positioned such that fluid within the container flows toward a pour opening. A extended actuating handle engages a valve at the pour opening and allows the valve to be opened and closed by a user in an upright position, rather than having to bend to operate the valve. A method includes positioning the container on the platform, opening the valve, and then moving the platform to disperse the liquid onto a surface.

Abstract: In combination with a collapsible container with a dimension that varies as the container collapses from a full position to an empty position, the bottle cover with a sight opening for viewing of indicia on the bottle to provide an indication as to the extent the bottle is full or empty.

Abstract: A one way valve assembly flows a sterile flowable substance from a source to an outlet orifice and prevents any backflow of contaminants through the one way valve assembly when the flowable substance ceases to flow. The valve assembly includes an elastomeric membrane which aids in preventing any backflow of contaminants when dispensing of the flowable substance is stopped.

Abstract: A device stores and meters a powder and mixes the powder with a diluent to prepare a food product. The device is able to be connected to a tank containing the diluent and to a source of air. The device includes a multidose container to form a reserve of powder, a powder dosing system, a powder duct integrated in an air chamber that can carry air around the powder duct outlet. The powder duct outlet emerges in a mixing chamber that includes a diluent inlet and a food product outlet, the whole forming a single piece disposable device.

Abstract: A reinforced container system comprises a container having a bottom wall, a pair of opposite side walls, a pair of opposite end walls, and opposed pairs of diagonal corner panels interposed between adjacent side and end walls to form an interior space. The bottom wall includes two opposed glue panels each of which is foldably joined to respective longitudinal edges of the bottom wall and each of which attached to the respective side walls. A protective sleeve is configured to detachably attach to the container. The protective sleeve includes two side walls, two end walls and opposed pairs of diagonal corner walls interposed between adjacent side and end walls. The side walls, the end walls and the diagonal corner walls are joined to one another along four vertical hinges to whereby protect the container against tremendous forces and inertia caused by mixing or shaking machinery.

Abstract: A system and method for dispensing fluids is introduced. A preferred embodiment comprises a sealed tank, a bag containing fluid inside the sealed tank, an outlet for dispensing the liquid in the bag, and a pressure generating device to create pressure in the sealed tank.

Abstract: A material dispensing assembly (100) and method of operation is disclosed for converting a portable cartridge dispensing tool to a bag-type dispensing tool. The assembly comprises a single piece piston (110) for advancing material though a material housing (104), the single piece piston (110) includes a substantially square-shaped receptacle (140). The assembly further comprises a square shaped drive rack (112) for attaching to the piston (110) at the substantially square-shaped receptacle (140) at a connection end (128). The drive rack (112) further comprises a plurality of teeth (142) located thereon. The assembly (100) further has a support (127) with a substantially square profile for receiving and supporting the drive rack (112) during operation such that the construct of the drive rack and piston (110) are prevented from rotating during operation.