Abstract: A document pressing envelope is constructed by providing first and second substantially rectangular sheets of transparent material and a strip of opaque material, each of the sheets having corresponding first, second, third and fourth edges. A strip of first adhesive material is disposed on a first major surface of the first sheet, adjacent to the first edge thereof. The strip of opaque material is placed on the first major surface of the first sheet, to substantially cover the strip of first adhesive material. Strips of second adhesive material are disposed on a first major surface of the second sheet, adjacent to the first, second and third edges thereof. The respective first major surfaces of the first and second sheets are placed in facing contact, so that the respective second and third edges of the sheets are substantially in alignment to define respective closed ends of the envelope.

Abstract: Large size packagings of napkins, paper rolls, quilts etc. normally appear as tight plastic sheet packings of a block-like shape. As a carrier handle is used a strong strip of sheet material which extends across a side panel of the packing, what is disadvantageous for the visual impression of the packing. A carrier handle cannot be formed direct in the packing sheet, as the packing will then no longer be dust proof. A handle is formed wherein inside the handle area, a barrier layer is provided in order to make the packing dust proof. Preferably a carrier handle strip portion is prepared between easily breakable weakening lines, whereby the handle panel of the packing may show a high quality stamp regardless of the handle.

Abstract: Bag segments arriving one after the other in a travel direction at an upstream input station are first lifted one by one as they arrive at the input station, are inverted them, and are deposited in a stack at a downstream stacking station atop one of a pair of similar pin-type stacking carriages held at an upper level. The one stacking carriage and the stack carried thereby are periodically displaced downstream from the stacking station to a downstream station at the upper level and the other stacking carriage is raised in the stacking station from a lower level below the one carriage to the upper level with the one carriage such that the segments are subsequently deposited on the other carriage in the stacking station. The one carriage is then lowered in the downstream station from the upper level to the lower level to strip off the stack it carries and thereafter is displaced at the lower level back upstream to the stacking station.

Abstract: A bag for protecting grains from insect pests harmful to stored grains is produced by treating one piece of kraft paper with an insecticidal solution containing a pyrethroide insecticide, laminating 1 to 5 pieces of kraft paper, to which the pyrethroidal insecticidal compound is not applied, onto the insecticidally unprocessed surface of the former kraft paper, and then forming the resulting kraft paper laminate into a bag so that the surface, to which the pyrethroid insecticide has been applied, of the former kraft paper faces the outside. When grains are preserved in the bag according to the present invention, the grains can effectively be protected from insect pests harmful to stored grains.

Abstract: A microwavable package, comprising a folded package for use in holding a variety of cookable items, such as popcorn, other food products, or other substances, all to be heated within a microwave oven, the package being formed of a polymer material, comprising one or more liners of such laminated material, with the package being formed into the tubular configuration, and having a paper or paper-like web of material located and adhesively secured within its manufacturer's joint; the formed tubular like material is then folded at its bottom segments, adhered temporarily through the usage of a hot melt of other adhesive, and having a paper or paper like seal applied thereover, to form a fully integrated and foldable package which is capable of functioning and maintaining its structural integrity even when exposed to the energy of a microwave oven.

Abstract: The present invention is drawn to an improved method of making a document file which has a pair of covers and a plurality of file elements laminated one upon another between the covers. The file elements are hot-sealed together and to the covers. The covers each have an auxiliary sheet hot-sealed to the cover body. The outermost file elements are hot-sealed to the auxiliary sheets of the covers. Thus, no dents or recesses are formed on the cover by hot-sealing the outermost file elements to the respective covers.

Abstract: An apparatus for producing various shapes of polyethylene bags includes a heating mold separating means, a cutting mold separating means and a collecting means. By using such an apparatus for making PE bags, a double-layered polyethylene sheet rolled on a roller is transported into the heating mold separating means by input rollers to form polyethylene bags of any desired shape. Since the bags can not be completely separated from the sheets by heating mold, the bags together with the sheets must be sent into the cutting mold separating means by transporting rollers again. The cutting mold separating means will cut the boundary of the bag except the root portion, so that the bag is completely separated from the sheets, except for the root portion. Finally, the bags together with the sheets are sent into the collecting means. The cutter of the collecting means indents the root portion of the bags and the needles of the collecting means pokes through the root portion of the bags.

Abstract: Bags in a series have first and second end portions with the bags being separated from one another except for links that connect the first end portions of the bags into a continuous chain, which is wound upon itself on a storage reel. Such winding may be in a vertical spiral fashion, or it may be by engagement by a separable continuous strip, such as a ribbon tape across the second end portions of the bags as reeled upon a core, thereby maintaining the bags in the chain substantially free from skewing relative to one another. Method and apparatus for effecting the reeling of the bag chain are also disclosed.

Abstract: A method and an apparatus for heat welding a butt seam on a tube of packaging material, in which the welding heat is generated by applying a high-frequency alternating electromagnetic field of a pair of induction coils. To prevent current arcing at the cut edges of a metal inlay of the packaging material in the vicinity of the abutting edges of a sheet of packaging material, the edges are guided spaced apart from one another by a predetermined distance. To this end, the apparatus has a separating blade, which in the operative range of the electromagnetic alternating field protrudes in between the abutting edges of the sheet of packaging material and between the induction coils.

Abstract: A wallet or billfold of exceptionally thin construction having a limited number of folds, pockets, and thickness of material, yet being capable of holding both bills and credit cards in separate pockets. Access to the card pocket may be achieved without unfolding the wallet or exposing the currency carried in it.

Abstract: Apparatus for forming an assembly of sealed envelopes used as a postal mailer includes a main envelope processing unit for producing envelopes from the envelope-forming continuous sheet, and an intermediate element supply unit exchangably connected with the main envelope processing unit to supply the intermediate element to the main envelope processing unit.

Abstract: A method of manufacturing folding paper sacks, especially gusseted sacks, wherein each sack is shaped out of a tubular section separated from a single- or multiple-layer tubular web and closed at both ends with folded bottoms is characterized in that each tubular section continues to be conveyed uninterruptedly parallel to the direction of travel of the tubular web once it has been separated from the tubular web and the forward and/or rear ends of the tubular sections are shaped during the continuous pass by prefolding and crimping over and by the application of adhesive to the folded bottom, transversely to the direction C of travel, and accordingly sealed.

Abstract: Apparatus for assembling axially elongated, diametrically expandable and contractible product bags axially within energy sleeves of elastomeric material which are at least partially diametrically expanded at assembly. The apparatus comprises three, (3) energy sleeve expansion stations where at the elastomeric sleeve is sequentially expanded by the insertion of expansion rods and/or tubes therewithin. From the third station the energy sleeves proceed to an assembly station with an expansion tube therewithin. At the assembly station a product bag is inserted axially within the expansion tube in the energy sleeve with an end portion protruding from the tube. A first mechanism moves the energy sleeve axially relative to the tube so that an end portion surrounds and frictionally grips a part of the protruding product bag.

Abstract: A plastic bag to be carried in the hand and a method for manufacturing the plastic bag are disclosed. The plastic bag comprises a top part, a jacket part and a bottom part. The top part is provided with a carrying aperture or the like and the bottom part is provided with a filling valve or the like by which the plastic bag can be filled with bulk material. The top part of the plastic bag is formed by a transverse seam and a reinforcing patch attached to one side of the upper end of the bag whereby the top part includes three material plies. A reinforcing patch can be attached to both sides of the upper end of the bag so that the top part is constituted by four plies.

Abstract: A method for making an airtight, flexible cell for utilization in the application of door edge safety strips is disclosed. The illustrated technique describes a series of steps which may be applied to the raw sheet material used to reduce the number of folding operations required to produce a seam.

Abstract: In the construction of a collapsible receptacle there is provided a length of fabric material and a length of webbing material formed from the same material as the length of fabric material. A plurality of lift loops formed from length of webbing material are positioned at spaced points along the length of fabric material with the lower ends of the lift loops located more than a predetermined distance above the lower edge of the material. After the lift loops are secured to the length of fabric material, the assembly is secured around the upper end of a collapsible receptacle body panel with the lift loops projecting above the upper edge of the panel. A line of stitching is used to at least partially secure the assembly to the body panel, with the line of stitching positioned at least the predetermined distance below the lowermost end of the lift loops.

Abstract: An envelope forming machine includes frame means supporting envelope blank feed means for feeding envelope blanks from an upstream end serially past aligner means, a printer transfer roller positioned adjacently above selectively operable printer means, scoring means and folding means to an envelope delivery station, with a release paper patch applying means being positioned above the transfer roller to apply a patch of release paper to adhesive on a flap of each envelope as each envelope flap passes over the printer transfer roller which serves as a backup roller against the flap during the application of the patch of release paper to the envelope flap.

Abstract: The invention concerns expanding files. A flat strip of flexible material (12) is progressively folded longitudinally to form a U-shaped channel. A length of the material equivalent to the developed width of a gusset is drawn forward. A precut partition with glued tabs (113) is placed at the rear of the drawn forward section of material. A fold is formed by pushing the three edges of the channel inwardly. This sequence of operations is repeated to form a multiplicity of pockets, comprising a plurality of parallel partitions joined along three edges to constitute respective filing pockets by the flexible material which is concertina-folded to constitute respective gussets. This multiplicity of pockets may be sectioned to provide separate expanding files. The invention comprises the manufacturing method and the machine for implementing same.

Abstract: A method of forming a container strip of flexible sheet material having anti-corrosion inserts is disclosed. The method includes the steps of bringing two webs of flexible material into superimposed relationship, applying an adhesive to one of the webs, and feeding inserts, one by one, between the two webs. Thereafter, the webs are passed between rolls which compress the webs and the inserts to adhere the inserts to the web having adhesive. Edge seals, end seals, and perforations then are formed to produce a strip of flexible containers suitable for reception of corrosion prone articles.In an alternative embodiment, an adhesive is applied to both webs at spaced locations and an insert then is compressed between the webs at a location toward one end of the container. This technique produces a container having a header portion to provide support for display purposes.

Abstract: A method of making a restraint cushion which when inflated forms a generally horizontally orientated lower compartment connected to a vertically orientated upper compartment comprising the steps of providing upper and lower sheets of woven material joined together along a rear edge and the side edges, forming a pleated section in the upper sheet, connecting the parts of the pleated section together, joining the pleated section to the lower sheet to form a wall separating the first compartment from the second compartment, and forming at least one opening between the compartments to allow fluid to flow from the lower compartment to the upper compartment.