Abstract: Disclosed is a method of making garment protector that is of high quality, having an envelope structure made of cloth fabric with an easy access opening in one of its sides covered by a flap member.

Abstract: A method of folding an air bag and an air bag having a main panel 20 defining a top (26), front (24), and bottom (28) portions and side panels (44a,b) the top and bottom portions defining a neck 30 narrower than the front portion; comprising the steps of: laying bag with bottom portion (28) of main panel (22) flat and as fully extended as possible; flattening the front portion (24) of the main panel (20) to over the flattened bottom portion to form a first lateral extending fold (80) between the bottom (28) and front portions (24) of the bag; maintaining a portion of the front panel (24), proximate the bottom panel (28), relatively flat and folding over the front portion with the top portion to define a second lateral fold (82) between a top portion and the front portion with the top portion flattened and extended as fully as possible, aligning edges (86) of opposing top and bottom portions; placing bag material towards a centerline (70) of bag to form on each side of the bag (20) first (90) and second (92) e

Abstract: This invention relates to the method for manufacturing a variety of square bottom containers by folding to the same side both of two brims of a sheet-shaped container of raw material of paper, aluminum foil, plastic laminate film and the like such that the brims mutually abut each other, forming a bonding agent or heat-seal layer on the outsides of both these butted brims, then forming the lower portion into a W-shape with an inverted V-shaped fold being provide in the midway, and then press-fitting the bonding agent or heat-seal layer from the outside of the formed sheet for its bonding or deposition, the press fit formed sheet defining a square bottom container having a bottom laminate which is flat with no overlap and having a heat seal film or the like which doesn't come inside the container. The method is efficient and the containers can be manufactured quite easily.

Abstract: The bottom of a gusseted, square-bottom bag is sealed by applying a fin seal, a cross seal which intersects the fin seal, and a third seal at the intersection of the fin seal and the cross seal.

Abstract: A flexible filter bag, the filter element of which is seamless and avoids prior leakage problems, is made by wrapping a flexible, preferably perforated, filtering fabric and a flexible nonfiltering transport material together onto a cylindrical mandrel to provide a tube. A thin metal ring is fitted into the tube, and the portion of the filtering fabric which extends beyond the edge of the transport material is folded inwardly around the ring to provide a cuff. A sleeve of a length about twice that of the tube is inserted into and pulled over the tube until the free ends of the sleeve are approximately coterminous with the ring-free end of the tube. The free ends of the sleeve and tube are gathered in the manner of a sausage casing and then subjected to pressure to form a seal, but the convolutions of the transport material terminate just short of the seal so as to avoid bunching at the seal.

Abstract: An ovenable bag includes a sheet of paper-like material; opposite edges of the sheet secured to each other to define a tubular member having opposite ends; the tubular member being folded inwardly along lengthwise fold lines thereof which are diagonally offset from each other and being flattened with respect to the lengthwise fold lines to form two pair of lengthwise crease lines that are parallel to the lengthwise fold lines, such that the flattened tubular member is defined by a wide wall section, a narrow wall section and an expandable wall section connecting the wide and narrow wall sections together; the narrow wall section extending past the wide wall section in the lengthwise direction of the flattened tubular member at a first end thereof; the flattened tubular member being folded over itself at the first end thereof along a transverse fold line; the wide wall section being adhered to itself at the folded first end of the flattened tubular member; and the narrow wall section being adhered to the expan

Abstract: An enclosure for use to safely secure a water-sensitive medical or electronic device such as a medication infusion pump in a water-resistant manner is disclosed which utilizes a pouch made of a sheet of thin plastic material to store the apparatus, the pouch being adhesively sealable to secure the device. The enclosure also includes a perforated area which may be opened to form a strap to carry or hang the device, and is constructed inexpensively to be of a disposable nature.

Abstract: A lapel provided at the one end of a paper sheet to forming a paper bag is introduced into the interior of an opening on the rotary cylinder by means. The folding blade has a rotational axis located outside the rotary cylinder parallel to an axis of rotation of the rotary cylinder. The thus bent lapel is brought in pressure contact with the edge face of the opening by means of a holding pawl which turns in operative association with the rotary cylinder. Thereafter, the lapel is covered and depressed by means of a depressing pawl which turns in operative association with the rotary cylinder whereby the lapel and a part of the paper sheet are adhesively secured to one another to build a double-walled structure around the opening of the paper bag.

Abstract: In a process of making T-shirt bags a flat tubular film that is provided on each side with at least one gusset is provided with top end seam welds, which close the gusset portions to form handle loops, and with cutouts, which are similar to the neckline of a T-shirt and extend through the inner creases of the side gussets, and the tubing is then folded on itself about its longitudinal center line and is thereafter formed at its bottom end with seam welds, which join all plies, and is formed between adjacent top end and bottom end seam welds with transverse perforation lines or with hot wire-welded joints to separate adjacent bags from each other. Before the folding of the tubular film on itself about its longitudinal center line those portions of the tubular film which are subsequently provided with the top end seam welds are provided with layers of a release agent which extend across the web and prevent a welding of the web.

Abstract: A flanged, dish shaped rectangular pressure responsive diaphragm is made from non-stretchable flat sheet stock in which the corners are formed with a tapering loop of excess material, and pleat folds take up the excess flange material to allow a tab portion to lie flat across the corner. Spacer strips and pieces are added to provide a uniform flange thickness.

Abstract: An improved former and method of forming superposed hems in superposed panels forming a continuous pliable and foldable web, especially thin plastifilm panels for forming plastic bags includes a first turning edge for turning at least an intermediate portion of the superposed panels from a first direction to a second direction, a second turning edge adjoining one side of the first turning edge for turning superposed free side edge portions of the web transverse to the intermediate portions and third and fourth turning edges spanning both the turned intermediate portions and turned side edge portions of the web for turning a separate one of the side edge portions against the turned intermediate portion thereby forming the hem.

Abstract: In the manufacture of packing containers from laminated material contact between the inner layer of the material and the contents is avoided by doubling up the cut edges present in the packing container. It has proved to be difficult to perform a secure folding and sealing of the folded edge without damage to the material, since the outer, water-tight layer of the material consists of very thin, heat-sensitive thermoplastic. This difficulty is overcome by carrying out the folding and sealing of the edge of the material web gradually while at the same time supplying heat or glue. By supplying the sealing-promoting agent as late as possible during the course of folding, damage to the material as well as to the folding arrangement is avoided.

Abstract: A folding assembly for forming a gusset in a file folder hinge and folding the file folder with the gusset inside of the file folder, the assembly including a transporting arrangement for moving a file folder in sequence through a scoring station, a creasing station, a squeezing station and a folding station, the creasing station including a drive assembly for moving one panel of the file folder toward the other as the hinge is creased. The gusset may be heated at the scoring station, creasing station and/or its squeezing station.

Abstract: In apparatus for laying for flexible sheets into a folded Z-shaped form, a supply conveyor (1) is disposed above means (9) for supporting or transporting the leading end of each sheet (26). Clamping means (16, 17) for laterally clamping the sheet on a transverse line are provided laterally of the supporting or transporting means (9). A reciprocatable transverse rod (22) is provided in a gap between the supply conveyor (1) and the means (9). Further conveyor means at right-angles to the supporting or transporting means (9) define an inlet which consists of double belt conveyors (30) or pairs of rollers, is extensible and closable in a plier-like manner, and is arranged so that one side edge of each sheet (26) folded to Z-shape by the transverse rod (22) lies within said inlet.

Abstract: An improved infusion bag for preparing an infusion of tea or other infusible substances, comprising a sachet member of liquid-permeable sheet material and a pull string. The pull string is joined at the upper apex of the sachet. At least one ventilative slit is provided below the joint point of the string and the upper apex of the sachet. The sachet can be folded into a generally tetragonal shape. After steeping, and by the action of withdrawing and submerging, the infusible substance swells and sinks to the lower apex of the sachet. The improved infusion bag makes the infusible substance less compacted and overcomes the constraint due to the capillarity of the liquid-permeable sheet material itself and the interface capillarity of the mass of the infusible substance. This gives a higher quantity and higher concentration of infusion liquor.

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: A glueless paper bag is formed from a single sheet of paper or similar flexible sheet material which is first folded longitudinally upon itself and then transversely to provide an open mouth bag having a closed bottom, pleated, relatively expansible sides, a single ply front wall, a multiple ply rear wall and a locking section which is tucked into the open mouth of the bag in overlying relation to the multiple ply rear wall thereof. The bag may be readily unfolded to provide a rectangular doily or napkin-forming sheet.

Abstract: A disposable or reusable and reclosable thermoplastic bag capable of being compactly stored as a food container in freezers, yet capable of standing with an upright spout in a microwave oven for non-spill thawing and cooking of food contained in the bag. The bag is formed of two wing-shaped pouches on either side of the upright spout. The preferred closure is a zipper type which can automatically vent upon softening of its thermoplastic structure during the cooking stage. The bag preferably has inner and outer skin layers of different heat-softening temperature responses so that peripheral sealing is effected only with the inner layers, allowing the wing-shaped pouches to be formed out of a gussetted bottom without sealing of the outer layer plies facing one another.

Abstract: A multiple pocket, expandable envelope, and a blank and method of forming the envelope, involve the use of a planar, unitary blank. The envelope has front and back panels and front and back divider panels therebetween to define three pockets within the envelope. The front panel is hingedly coupled to the front divider panel along a fold line at one side thereof. The back panel is hingedly coupled to the back divider panel along a fold line at one side thereof. A plurality of side panels hingedly couple the front panel to the front divider panel at the other side of the front panel, the back panel to the back divider at the other side of the back panel, and the front and back divider panels to each other. This permits the multiple pocket, expandable envelope to be formed from a planar, unitary blank in a simple and inexpensive one-pass straight line operation on conventional folding and gluing apparatus.

Abstract: A process for the manufacture of a jacket, comprising two cover sheets joined to one another, for a flexible disk for data recording, the cover sheets and the nonwoven lining being punched out in the form of blanks including the functional apertures, and the cover sheet blank and the nonwoven blank being joined to one another and then folded to form the jacket, wherein the sheet material for the cover sheets is transferred from a magazine, with the aid of mechanical, air-operated grippers provided with positioning means, to an assembly surface and is there provided, the sheet of nonwoven material from a second magazine is tacked onto the cover sheet material by spot-welding and is then joined thereto over the entire surface by thermal welding, thereafter the cover sheet material thus provided with the nonwoven covering is transferred to a holder frame and then conveyed, with this frame, to a punching device where it is punched out to form a blank provided with the functional apertures, subsequently the blank

Abstract: An apparatus for the manufacture of a jacket, comprising two cover sheets joined to one another, for a flexible disk for data recording, the cover sheets and the nonwoven lining being punched out in the form of blanks including the functional apertures, and the cover sheet blank and the nonwoven blank being joined to one another and then folded to form the jacket, wherein the sheet material for the cover sheets is transferred from a magazine, with the aid of mechanical, air-operated grippers provided with positioning means, to an assembly surface and is there positioned, the sheet of nonwoven material from a second magazine is tacked onto the cover sheet material by spot-welding and is then joined thereto over the entire surface by thermal welding, thereafter the cover sheet material thus provided with the nonwoven covering is transferred to a holder frame and then conveyed, with this frame, to a punching device where it is punched out to form a blank provided with the functional apertures, subsequently the b

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.

Abstract: A system for handling and transferring plastic bags between folding stations including control means for monitoring the folding accuracy and alignment of each bag while advancing along a predetermined path and means responsive to the control means for diverting each improperly registered bag from such path.

Abstract: This invention relates to a stiff tubular hollow rod, said rod being substantially double-walled over its entire length and comprising one single length of flexible tubing, the wall of which is substantially free of openings and at least one of the surfaces of the tubing is provided with a coating, said rod comprising a shirred outer tube and an inner tube substantially free of folds arranged in the hollow space of said shirred outer tube constituting the casing for the inner tube, the inner tube being joined to the shirred outer tube at one of its ends and sealed at the other. The invention also relates to processes for making said hollow double-walled tubular rod of flexible tubing and to a sausage produced using said hollow tubular rod of flexible tubing.