Abstract: A sealing machine for sealing plant material disposed within a heat-sensitive bag comprises a first platen, a second platen movable with respect to the first platen between open and closed positions, and a compressible member disposed in a gap between said first and second platens. As the second member moves towards the closed position, the compressible member contacts and applies a pressure to bag, and evacuates substantially all of the air from within the bag without damaging the plant material. A sealing strip heats the bag, while an opposing pressure strip directs a pressure to the bag.

Abstract: A positive-pressure packaging system is provided to seal a product within an open package. The system includes a pressure chamber which encloses the product and package and is configured to expel atmosphere gases initially present within the package. The system includes a seal assembly for straitening the opening of the package so as to prevent the passage of particulate and other matter from within the open package. The system also includes a pressure source configured to increase pressure within the pressure chamber so as to expel the atmosphere gases by compression of the open package. A method of using the positive-pressure packaging system is also disclosed.

Abstract: An apparatus and a method for packaging articles in bags is proposed, where a packaging magazine is used for receiving and guiding an article to be packaged. An article to be packaged is slid by a slider into the packaging magazine. The packaging magazine then moves together therewith into an opened bag, which is removed from a bag stack. With the bag, which surrounds the packaging magazine, the latter is then slid into the transfer magazine from where further conveying takes place.

Abstract: A device and method for turning and relaxing compressed springs in pocket sections of a spring pocket row is provided. The device comprises a push rod having a lower limb and a connection rod. A first linear drive pivots the push rod about a vertical axis and the second linear drive raises and lowers the push rod. During a working stroke the first linear drive pivots the push rod so at least one compressed spring is seized and displaced in a pocket section. The push rod is returned to its original position before the spring pocket row is advanced. The process is then repeated.

Abstract: The invention relates to a method for wrapping a plurality of soft elements, comprising the steps of stacking the elements, compressing the stack in a direction of stacking, and thus forming a package, inserting in a feeding direction the package into a film, preferably a plastic film, which at least partly consists of a thermoplastic material and which in an at least partly overlapping manner surrounds the package, sealing the film in the feeding direction, and cutting and optionally sealing the film transversely of the feeding direction. The method is characterised in that the step of sealing the film in the feeding direction is carried out by supplying from a nozzle towards the film a pressurised heated gas towards the portions of the film that overlap each other, so that they change into an at least partly molten state and are joined. The invention also relates to a device for carrying out the method.

Abstract: A packaging apparatus includes a pair of rolls forming a nip through which two web portions are passed with an item to be packaged between the web portions. The rolls include resiliently compliant roll portions that deform to accommodate the thickness of the item, and the roll portions press the web portions to seal them together in peripheral regions surrounding the item and to center the item between the webs in the thickness direction. The apparatus also includes side seal devices that traverse inwardly toward the item to seal the webs together close to the item's opposite side edges to prevent the item from laterally shifting. The web portions may have cohesive disposed on their facing surfaces such that the web portions adhere to each other with pressure but tend not to adhere to the packaged item or other surfaces.

Abstract: An adjustable pneumatic density control is provided for an agricultural bagging machine which not only acts as an anchor against premature movement of the machine as the bag is being filled, but also controls the density of the material being packed in an agricultural bag. The adjustable pneumatic density control comprises an inflatable bladder which is supported upon the rearward end of a flexible cable extending from the frame of the bagging machine. An air line extends to the bladder to supply air to the interior thereof to enable the size of the bladder to be selectively varied. A density control gauge or meter is imposed in the air line to enable the operator to ascertain and control the pressure within the bladder. An optional shield is also provided which extends partially around the bladder to reduce wear on the bladder and to prevent damage to the bladder.

Abstract: A loading apparatus for loading a strip of a soft material into a container includes a sleeve member rotatable among first, second and third angular positions. First cylinder unit for pushing the strip of the soft material into the sleeve member at the first angular position. Second cylinder unit for compressing the strip of the soft material in the sleeve member at the second angular position. And a third cylinder unit for pushing the compressed form of the soft material into the container.

Abstract: A spring unit comprises a continuous coil spring (5) contained within a sleeve (26) of strong, yet flexible, material. The unit is produced by providing a folding attachment device (2) having oppositely inclined spaced walls (13, 14) which converge from a feed end (3) to an outlet end (4), and simultaneously drawing the flexible material and the coil spring through the folding attachment device from the feed end to the outlet end with the spaced walls acting to fold the material over the coil spring and to apply a substantially uniform compressive force to the coil spring. As the material and the spring are drawn through the outlet end (4), overlapping edges of the flexible material are joined together to complete the spring unit.

Abstract: A log packaging apparatus for packaging logs using a turret or a shuttle. The turret or shuttle can be used in conjunction with a wrap conveyor. The turret system can include a rotatable turret with at least one clamp movable into different positions in the apparatus, a log station at which logs are received, and a log ejector for ejecting logs from the log station into clamps of the turret. Logs can be ejected from the log station, through wrap material, and into the turret clamps. In other embodiments, a wrap conveyor inserts wrap material between a shuttle and a log station at which logs are received. Logs in such embodiments can pass from the log station to the shuttle through the wrap material.

Abstract: An improved agricultural feed stock loading apparatus that includes a feed tunnel. In various embodiments, the apparatus includes a multi-part tunnel system that can be removed from the bagger and/or adjusted in width and/or length for shipping and moving convenience, and to accommodate different-sized bags. Other embodiments include a foldable brake beam and shaft mechanism that facilitates shipping and road travel. Other embodiments include a feed wagon portion with a large buffer table as a unitary part of the bagger, facilitating depositing a large amount of feed onto the bagger, and freeing the loading machinery for other duties.

Abstract: A recloseable storage bag is disclosed which may include first and second sides having closed sides and an open top. Primary closure members may be provided proximate the top, with a secondary closure element being provided in one of the sides to enable gas to be evacuated from the bag after the primary closure members are closed. The secondary closure member may further include the ability to prevent liquid from exiting the bag therethrough.

Abstract: Method and device for packing bags filled with product in a box. The bags are made gas-permeable and after the bags have been filled with product the residual volume of gas therein is removed by drawing off the gases present in the bag by means of suction. This is achieved by conveying the bags over a belt on which vacuum is acting. Prior to this step the bags can be subjected to a vibratory treatment in order to optimise the position of the product in the bags.

Abstract: According to a method for packaging one stack of multiply articles made of paper, a presser receives and compacts the stack of articles to be packaged and a pusher moves longitudinally the stack so as to make the stack hit a wrapping foil, previously placed vertically. The stack, partially wrapped within the wrapping foil, is introduced between a pair of belt conveyors. The presser and the pusher are carried by a slide moving longitudinally between a backward position with respect to the wrapping foil, where the stack is received and compacted, and a forward position, in which the presser hit the wrapping foil and move close to the belt conveyors, so as to transfer and introduce the stack between the belt conveyors.

Abstract: Apparatus and methods for removing excess fluid, and specifically gas, from a flexible container and sealing the container are provided. The apparatus comprises a device for receiving a flexible container including a product and having a first open end and a second sealed end located at an opposite end of the container from the first open end. The device includes an interior designed to receive at least a portion of the flexible container. The interior is defined, at least in part, by a compressible member that is so constructed and arranged so as to progressively squeeze excess gas located in the interior of the flexible container from the second sealed end out the first open end of the flexible container. The device also includes an integral sealing member that seals the first open end of the flexible container after the compressible member squeezes fluid from the interior of the flexible container.

Abstract: A disaster pack comprising a pillow, a blanket, and a mattress pad compressed and disposed within a first sealed bag comprised of a cavity, and a seal at one end of the cavity is disclosed. A packaged product comprising a compressible dry good compressed and disposed within a sealed bag comprised of a cavity, and a seal at one end of the cavity, wherein the compressed volume of the compressible dry good disposed within the sealed bag is less than about twenty percent of the free state volume of the compressible dry good is also disclosed. A method for making the packaged product comprises the steps of placing the compressible dry good within a bag; placing the compressible dry good disposed within the bag on a platen; compressing the compressible dry good within the bag; sealing the open end of the bag to form a sealed bag; and removing the dry good within the sealed bag from the platen.

Abstract: An adjustable pneumatic density control is provided for an agricultural bagging machine which not only acts as an anchor against premature movement of the machine as the bag is being filled, but also controls the density of the material being packed in an agricultural bag. The adjustable pneumatic density control comprises an inflatable bladder which is supported upon the rearward end of a flexible cable extending from the frame of the bagging machine. An air line extends to the bladder to supply air to the interior thereof to enable the size of the bladder to be selectively varied. A density control gauge or meter is imposed in the air line to enable the operator to ascertain and control the pressure within the bladder. An optional shield is also provided which extends partially around the bladder to reduce wear on the bladder and to prevent damage to the bladder.

Abstract: The specification discloses a method and apparatus for producing a package containing high moisture content particulate plant material intended for human consumption or for use as animal feed stock which will preserve same without the particulate plant material undergoing a drying process, the method involving either providing a flexible walled container or alternatively forming such a container from a web of plastics material cling film (15), at least partially filling the flexible walled container with particulate plant material via a delivery chute (17) into an upper open mouth of the flexible walled container, pressing the particulate plant material to expel air therefrom, closing the flexible walled container and preferably applying two circumferentially extending bands (22, 23) of plastics material film overlapping one another at 90° around the closed flexible walled container with sufficient web thicknesses and tension to compress the flexible walls of said container inwardly.

Abstract: The present invention comprises a unitary flexible package for enclosing and containing in a sealed condition one or more compressible products in both a compressed and uncompressed condition. The package comprises a first closure member capable of sealing the package in a first closed condition defining a first volume, and a second closure member capable of sealing the package in a second closed condition defining a second volume, the second volume being greater than the first volume. A method for making the package of the present invention is also disclosed.

Abstract: A fruit injector and method for squeezing a fruit segment into a container, particularly, a beer bottle. A channel shaped body includes a plunger and a compression member pivotally connected for movement to the body for compressing a fruit segment.

Abstract: An improved method is disclosed for shipping very large tires which are typically used on very large vehicles such as earthmovers. The tires can be shipped so that less shipping and storage space is required.

Abstract: A string (12) of pocketed coil springs (14) is formed by inserting compressed springs between upper and lower plies of a folded, preferably thermally weldable fabric (16). The springs are maintained in a compressed configuration while a longitudinal seam (54) joins the free edges of the thermally welded fabric (16) together. Subsequently, the compressed springs (14) are allowed to relax into an expanded configuration after which a transverse seam (80) is formed in the fabric (16) between the adjacent springs (14) thereby encapsulating each spring (14) within a fabric pocket (86). The string (12) of pocketed coil springs (14) is advantageously formed without the need for reorienting the springs (14) after being inserted between the plies (24, 26) of the fabric (16) and thereby avoiding the disadvantages and complications associated with turning or reorienting the pocketed coil spring (14).

Abstract: There is disclosed an apparatus and method for evenly dispersing the contents of powder filled bulk bags, in order to create a flat, even, horizontal bulk bag surface for efficient attachment to the suction head of a vacuum lift.

Abstract: An apparatus and method for manufacturing a drainage line unit. The apparatus includes a mandrel having an inner cavity. Rear, upper and front openings communicate with the mandrel cavity. Preferably, a controller connected to at least one sensor is operably positioned to control the apparatus. A pipe feeder feeds perforated vent pipe through the inner cavity of the mandrel from the rear opening to the front opening and therethrough. The pipe is positioned within the inner tube cavity so as to define a void space between the pipe and the wall of the mandrel. A hopper assembly has an exit port positioned for feeding a plurality of plastic bodies into the cavity. A blower produces a sufficient air flow through the mandrel cavity for moving the plurality of plastic bodies to substantially fill the void space so that the pipe emerges from the front opening of the mandrel surrounded by the plurality of plastic bodies.

Abstract: A fruit injector and method for squeezing a fruit segment into a container, particularly, a beer bottle. A channel shaped body includes a plunger and a compression member pivotally connected for movement to the body for compressing a fruit segment.

Abstract: An exemplary pocket spring assembly comprises a plurality of elongate fabric tubes disposed adjacent each other. Each fabric tube has a plurality of pockets, with at least some of the pockets of adjacent fabric tubes being welded together at midpoints on the adjacent pocket. Further, a spring is disposed in each of the pockets.

Abstract: A method of packaging spring units in which at least one web of insulator material is fixedly located against one of the top and bottom surfaces of the spring units. Each web of insulator material is secured to the outermost coil springs along longitudinal edges of the spring units with securing elements. The resultant bedding products are then roll-packed.

Abstract: A method and apparatus for braking an agricultural feed bagger includes the following steps. A first step involves providing an agricultural feed bagger having a frame. The frame includes a tunnel with an intake end for receiving material to be bagged and an output end adapted to receive an open mouth of an agricultural bag. A second step involves positioning a body at a remote end of a linkage which extends outwardly from the frame into a flow stream of agricultural feed entering the open mouth of the agricultural bag. The flow of agricultural feed acting against the body serves to slow the forward progress of the agricultural bagger, as the force exerted against the body is transmitted, via the linkage, to the frame.

Abstract: An airbag folding apparatus includes a folding tube, a folder support apparatus, and a plunger mechanism. The folding of an airbag utilizing the folding apparatus comprises the following steps. A vehicle airbag is attached to the plunger mechanism and the airbag is lowered into the folding tube. The plunger mechanism is introduced into the folding tube after the airbag is completely inside the folding tube. The plunger mechanism is forcibly lowered into the folding tube causing the airbag to be compressed or folded. The plunger mechanism remains exterior to the airbag throughout the folding process. The plunger mechanism is then detached and a fold retention sheet is wrapped around the folded airbag.

Abstract: An open cell foam with thermal memory characteristic is used as an indicator for heat damage to an article containing heat sensitive contents packaged in a carton. The foam material may be a polyurethane-based thermoplastic polymer referred to as “Cold Hibernated Elastic Memory” (CHEM) foam. The thermal memory foam can be produced in compressed form and used as inserts in the carton. Upon exposure to a temperature at or above the foam glass transition temperature, the foam insert expands to substantially its original shape (volume) so as to apply a compressive force against the article, making it difficult to remove from the carton. Alternatively, the expanded foam will deform the carton walls, providing an external indication of heat damage. The foam can also be used as a heat-indicating element in an inspection panel of the carton, which ruptures so as to provide external indication of heat damage.

Abstract: The present invention is directed to an apparatus for compressing a plurality of objects into a compressed grouping and transferring said compressed grouping to a transfer conveyor. The apparatus includes a rotatable cylinder having a plurality of receiving areas positioned around the circumference of the cylinder for receiving a plurality of objects in expanded arrangement from an infeed conveyor at a receiving position. The apparatus also includes first and second compression members, one positioned on each end of said cylinder adjacent the receiving areas and covering a circumferential-portion of a side of said cylinder. The compression members include inclined portion which force the end objects toward the longitudinal center of the cylinder. In addition, a transfer conveyor running longitudinally through the cylinder for capturing a compressed grouping at the transfer position.

Abstract: The present invention is a container for storing fine particles in a sealed packaging, wherein air in the container can be evacuated through compression or vacuum without removing the fine particles. The container comprises a main body enclosing a pouch, terminating in a principal opening, a sealing mechanism attached to the pouch for sealing the pouch, at least one exit port extending through the wall of the pouch, and a porosity mechanism adjacent the exit port, wherein the porosity mechanism permits air to exit through the exit port, but prevents the fine particles from escaping through the exit port.

Abstract: Pieces (21) are cut out from a lay-up (20) built up from plies of superposed flexible sheets of material, and the lay-up is then packaged in full inside a covering (70) without separating the cutout pieces from the scrap. The lay-up can thus be transferred from a cutting installation to a workshop for assembling the pieces, and information relating to the layout or layouts of the cutout pieces can be transmitted therewith.

Abstract: A case loading machine and method of operation is described for positioning at least two flexible bags, having an unstable product therein, in a case and in side-by-side contact with one another. A case engaging and displacement mechanism is positionable inside a case from an open top end of the case whereby to divide the case into compartments of predetermined size. The mechanism holds the case at a loading position with one of the compartments aligned at a bag receiving position. A bag engaging and transfer mechanism engages one of the bags from a bag filling position and transfers it into the aligned compartment. The bag engaging and transfer mechanism is provided with a compression compartment to compress the flexible bag and displace the unstable product therein whereby the bag is sized to enter into the aligned compartment. The case is then displaced to align another compartment at the loading position to receive a further bag.

Abstract: A device for packing trees and greenery on a pallet or the like having lateral supports. The device comprises a base part capable of supporting a pallet and a working tower protruding upwards from one side of the base part. The working tower comprises a top part which is movable between a horizontal position and a vertical position, and which, at least in its horizontal position, is slidable in a vertical direction to compress the trees packed on the pallet. The device additionally comprises a frame which at least comprises plate parts at the ends of the pallet, and which together with the lateral supports of the pallet defines a delimited loading area for trees and greenery. The frame is vertically slidable, and the top part has an extent in its horizontal position which cause trees and greenery as well as the frame to be pressed downwards by the top part during the compression. Also described is a method of compressed packing of trees and greenery on a pallet or the like having lateral supports.

Abstract: A method is provided for forming a package of a plurality of side-by-side stacks of continuous strips of material in a rectangular container. Each strip is folded back and forth about first and second fold lines to form a stack of a plurality of folded overlying strip portions which are arranged side-by-side so that the side edges are aligned. The fold lines are transverse to the strip and arranged at opposite ends of the stack. A splice tail portion extending from a first strip end portion of each stack is spliced to a second strip end portion. The stacks are compressed such that their height is equal to that of the container and the splice tail portions remain loose and uncompressed.

Abstract: A string (12) of pocketed coil springs (14) is formed by inserting compressed springs between upper and lower plies of a folded, preferably thermally weldable fabric (16). The springs are maintained in a compressed configuration while a longitudinal seam (54) joins the free edges of the thermally welded fabric (16) together. Subsequently, the compressed springs (14) are allowed to relax into an expanded configuration after which a transverse seam (80) is formed in the fabric (16) between the adjacent springs (14) thereby encapsulating each spring (14) within a fabric pocket (86). The string (12) of pocketed coil springs (14) is advantageously formed without the need for reorienting the springs (14) after being inserted between the plies (24, 26) of the fabric (16) and thereby avoiding the disadvantages and complications associated with turning or reorienting the pocketed coil spring (14).

Abstract: An improved apparatus and method compresses a cylindrical blank into a tampon which is dimensionally stable and which is provided with a domed insertion end. A cylindrical blank is radially compressed and then introduced into a cylindrical axial compression chamber. The blank is then subjected to an extreme axial overcompression. The closed insertion end of the compression chamber has a bore formed therethrough. The bore is generally coaxial and is adapted to accept a reciprocating ejection ram having a ram surface facing into the chamber. When the ram is seated in the first position, the ram surface and the insertion end wall of the compression chamber together form a smooth doming surface. The bore periphery is of a smaller diameter than the chamber and hence radially spaced from the side walls of the chamber, and the ram has sufficient clearance to move through the chamber and eject the tampon without interference from the walls of the chamber.

Abstract: The present invention is directed to an apparatus for compressing a plurality of objects into a compressed grouping and transferring said compressed grouping to a transfer conveyor. The apparatus includes a rotatable cylinder having a plurality of receiving areas positioned around the circumference of the cylinder for receiving a plurality of objects in expanded arrangement from an infeed conveyor at a receiving position. The apparatus also includes first and second compression members, one positioned on each end of said cylinder adjacent the receiving areas and covering a circumferential-portion of a side of said cylinder. The compression members include inclined portion which force the end objects toward the longitudinal center of the cylinder. In addition, a transfer conveyor running longitudinally through the cylinder for capturing a compressed grouping at the transfer position.

Abstract: A method is provided for forming a package of a plurality of side-by-side stacks of continuous strips of material without intervening rigid container walls. Each strip is folded back and forth about first and second fold lines to form a stack of a plurality of folded overlying strip portions. The fold lines are transverse to the strip and arranged at opposite ends of the stack. The strip portions of each stack are arranged side-by-side so that the side edges are aligned. The strips are fed simultaneously through a guide slot in a movable carriage that is parallel to the stacks end upon which the stacks are arranged.

Abstract: A method of manufacturing an ink cartridge for use in an ink jet recorder, comprising the step of providing an ink bag having a top end, and a bottom end below the top end, the top end being open and the bottom end having an ink feed port therein; moving the ink bag from a first position near a top edge thereof and positioning the ink bag in a vacuum chamber; depressurizing the vacuum chamber; charging a selected quantity of ink into the ink bag; sealing the open end of the ink bag at a second position below the first position; pressing the sealed portion of the ink bag to a selected thickness with press plates; sealing the bag in the pressed position at a third position below the second position; and cutting the ink bag between the second and third positions.

Abstract: An apparatus and associated methods are provided for producing a plurality of shock absorbing pads. The apparatus preferably has a core pad former for forming particulate core material into a plurality of individual core pads, a core pad encaser positioned downstream from the core pad former for encasing the plurality of individual core pads with a selected sheet of material to thereby form a sheet of a plurality of shock absorbing pads, a pad sheet debulking conveyor positioned adjacent the core pad encaser for debulking the sheet of the plurality of shock absorbing pads and conveying the sheet of the plurality of shock absorbing pads downstream, and a pad separator positioned downstream the pad sheet conveyor for separating the sheet into a plurality of individual shock absorbing pads.

Abstract: A compressed upholstered furniture assembly kit, method of manufacture and assembled article of furniture. A consumer-assembled article of furniture having upholstered portions is provided in a manner which comports with the shipping, warehousing and display constraints of retailers and which accommodates a variety of consumer decorating tastes. The kit includes frame members and reduced volume padding. This padding, when exposed to air at atmospheric pressure expands to its natural size and shape. The padding may include a porous protective cover which is applied prior to reducing its volume, and may also include a bladder to which fluid is added to provide further expansion. The expanded padding provides cushions which are covered with separately available decorative, fitted covers to form upholstered pieces, which are then applied to the assembled frame to form a completed article of furniture.

Abstract: This method and apparatus contemplate the making of pocketed springs for mattresses and cushions by inserting compressed springs at intervals along and between the plies of a folder two-ply strip of sheeting, maintaining the springs compressed therein while seaming the edges of the plies to form a sleeve about the compressed springs as the strip is drawn lengthwise toward a release point at which each spring is free to expand to spread the plies. This transposes the edge seaming to mid-height of the spring. A previously made cross seam incorporating the transposed edge seaming limits the forward movement of the spring and a further such cross seam made behind the spring encloses the spring within an individual pocket of the sleeve. The repetition of spring release and cross seaming behind each spring released produces a string or chain of pocketed springs with the closing seam of the sleeve at mid-height of the springs.

Abstract: A method for the design and fabrication to reproduce a preselected subject matter such as a wild animal in a material comfort object incorporating a cavity that may be enhanced into an enclave by incorporating preselected portions of the subject matter such as a head or legs to add a surround to the cavity, giving preference to reproducing areas of the subject matter with plush material which resembles the color and texture of the subject matter while maintaining easy access to the cavity thereby presenting an exposed surface or comfort panel that is soft, warm and inviting to the user of the object. A sound reproduction device may be added to the object to provide preselected sounds, a child safe pocket may be formed in the object to hold the sound reproduction device.

Abstract: A method of making a plate-like frozen raw hamburger-like matter includes: a filling step for filling a constitutional material of the raw hamburger-like matter between a first thermal seal a second thermal seal, provided in a direction perpendicular to the conveying direction; a deaerating step of pressing the film so that the filled constitutional material is extended until the second thermal seal is provided; a forming step for forming the plate-like raw hamburger-like matter by equalizing the constitutional matter, therein; and a freezing step for maintaining its shape by rapidly freezing the package bag enclosing the raw hamburger-like matter.

Abstract: A bagging machine for bagging material in an elongate bag. An anchor connected to a cable extends from the machine and resides in the material being placed in the bag. The anchor may be extended different distances from the machine to provide a varying restricting force to restrict the movement of the machine away from the bag being filled. Powered reels are provided to reel in cable or play out cable to vary the distance between the anchor and machine.

Abstract: A method of storing and aging a meat which comprises the steps of containing meat in a controllable environment under a mechanical compression, substantially separating a majority of a surface of the meat from direct contact with a gas present in the controllable environment, controlling the gas in the controllable environment by reducing free oxygen gas in the controllable environment and controlling gas pressure in the controllable environment while protecting a majority of the surface of the meat from the effects of a pressure variation, and holding the meat under the controllable environment for a period of time within a predetermined temperature range; provided that the meat is held under the mechanical compression during the controlling of the gas in the controllable environment.

Abstract: A package of a continuous strip of material comprises a plurality of parallel side by side stacks each containing a length of the strip which is folded back and forth such that each folded portion of the stack is folded relative to the next portion about a line transverse to the strip and such that the side edges of the strip portions are aligned. The strip is continuous through each stack and is connected by a splice from the end of one stack to beginning of the next stack. The package is compressed to reduce the height of the stacks and maintained in the compressed condition by an evacuated sealed bag. The preferred package arrangement uses the package for pay off of the strip in the orientation in which it is formed with the bottom of the stacks resting on a support and the package tilted to one side so that the stacks lean against a support surface for stability.

Abstract: An apparatus and method for manufacturing a drainage line unit. The apparatus includes a mandrel having an inner cavity. Rear, upper and front openings communicate with the mandrel cavity. Preferably, a controller connected to at least one sensor is operably positioned to control the apparatus. A pipe feeder feeds perforated vent pipe through the inner cavity of the mandrel from the rear opening to the front opening and therethrough. The pipe is positioned within the inner tube cavity so as to define a void space between the pipe and the wall of the mandrel. A hopper assembly has an exit port positioned for feeding a plurality of plastic bodies into the cavity. A blower produces a sufficient air flow through the mandrel cavity for moving the plurality of plastic bodies to substantially fill the void space so that the pipe emerges from the front opening of the mandrel surrounded by the plurality of plastic bodies.