Abstract: A container strip in the form of a chain of interconnected preopened bags with openings having longitudinal dimensions of at least about 1/32 inch is disclosed. The container strip provides greatly enhanced facility for bag registration and opening during packaging operations utilizing the improved container strip. A process of forming a chain of pre-opened bags is also disclosed. Face and back plastic webs are independently fed along individual paths of travel to a common path. The webs are differentially tensioned while in their independent paths by stretching the face web more than the back web such that the face web will retract longitudinally more than the back web upon release of the web tension. While so tensioned edge seals are formed between the webs to convert the webs into a tube and longitudinally spaced transverse seals are formed between the webs to delineate bottoms of bags.

Abstract: A bag and a method and apparatus for forming an easy open bag wherein a said bag is formed of thermoplastic heat shrinkable film is disclosed. Specifically, an easy open thermoplastic heat shrinkable bag having a heat shrinkable thermoplastic tear strip panel sealed without adhesives or heat seals is disclosed. A method of making said easy open bag is also described.

Abstract: A gusseted envelope or box making apparatus and method including the use of a tractor feed unit (11) which perforates the web stock (5) prior to a subsequent printing step. A thermal print head (61) precisely activates thermal ribbon (57) which is accurately registered with the web (5) by means of pin feed holes (16,17). A product conveyor (74) manipulates the product (75) so as to automatically load the box or envelope (69) thus manufactured and printed. A multipart form (141) is disclosed including a continuous envelope (167), return reply envelope (173) and enclosed coupon (166) which may all be imprinted with unique customer information (161). The complete form (141) is folded and inserted into a parent envelope (167) by a series of vacuum plates (376) and insertion rams (392).

Abstract: A method of manufacturing bags that are rectangular when collapsed and which comprise two superimposed flat sides, sealed at the edges, and a handle member. The method comprises the steps of: laying out a web forming three parallel subordinate webs, one extending longitudinally in the middle and one on each lateral side thereof; folding two top flanks out of the middle subordinate web to create a handle-top portion; V-folding a center strip of the middle subordinate web to create a handle member; providing the handle member with a finger slot and with depressions that allow the middle part to be pulled apart along the handle member to form a gusset; bringing the two lateral subordinate webs together; and attaching the lateral subordinate webs together along seams to create bag edges and cutting off the bags along their edges.

Abstract: Twin compartment packets, e.g. tea bags, are formed with the compartments connected at the heads of the packet and optionally at the tails. The packets are produced from a pair of compartmented tubular webs that are brought together with the compartments in register, the webs then being interconnected at the compartment end seals and severed at those seals to form the separate packets. Apparatus for performing the process deposits doses of tea at spaced intervals onto the two separate webs before forming them into the tubular compartmented webs, brings the compartments of the two webs into register, interconnects the registered compartments, and separates the interconnected compartments into individual packets while the web advances continously through the apparatus. The process is capable of high production rates because the webs are able to move through the successive stages at a uniform speed.

Abstract: A flexible woven fabric bulk container made of four panels with vertical selvage sides, vertical warps and cut edges in the direction of the weft at the top and bottom, with diagonally extending interlocking hemmed corners with upper portions splayed or flared in a counter-clockwise direction and overlaid with inner and outer depending legs of inverted "U"-shaped loops.

Abstract: A method is disclosed of attaching a gripping device to a sheet of packaging material that is to be formed into a container includes the steps of forming a hole in the sheet of packaging material, inserting an anchorage device in the hole, sealing the anchorage device to the sheet of packaging material in a liquid-tight manner and fixedly connecting a gripping device to the anchorage device.

Abstract: A package is provided which is formed of a plastic film such as polyethylene or polypropylene. The package is formed to define an internal chamber to accommodate an article to be packed. A slit is provided in the wall and a hanger is provided a part of which extends through the slit. This part is provided with projections which lock the hanger against retraction into the internal chamber. The projections are rounded and/or wedge shaped to facilitate penetration of the hanger through the slit. According to the method by which such a package is formed the projections are shaped to penetrate through the slightly smaller slit without exceeding the elastic limit of the material from which the package is formed. Thereby the material can resume its original shape after the projections have been forced through the slit.

Abstract: A false gusset (12, 82) is positioned between bag panels (26, 28 and 98, 100) to form a bag having a handle (24, 80) at its upper end formed by upward continuations of the sides (26, 28 or 98, 100) of the bag (10, 78). This construction removes the false gusset (12, 82) and the seals (66, 68 or 114, 116) which connects the false gusset (12, 82) to the bag panels (26, 28 or 98, 100) from the forces created by the weight of the bag (10, 78).

Abstract: A method and apparatus wherein individual plastic articles are sheared from a cartridge of such articles and conveyed mechanically through an inserter arm to a desired position.

Abstract: A method and apparatus for fabricating continuous envelopes for use in connection with electronic data processing printers or the like is disclosed. The method and apparatus includes the steps of severing an advancing web along longitudinally spaced-apart transverse lines to provide straight completely severed segments and a non-severed medial segment. In a distinct step, the web is severed along non-linear lines adjacent to the transverse lines, with each non-linear line including a severed longitudinal segment and a severed bridging segment which extends in an oblique direction between the transverse line and the outer end of the associated longitudinal segment to provide a generally triangular cut-out which, when both are removed, yields an envelope backing panel having a tapered closure flap.

Abstract: Draw tape bags are made with folding surfaces which decrease in width to the final bag height. One edge of each side of a moving web of film is tucked onto a side of a surface to produce a hem in each edge of the moving web. Rollers, which are canted with respect to the direction of movement of the web, pull the hem of the film tight against the surface to insure that the web is at the final bag length when the web leaves the surfaces.

Abstract: A package which is formed as a bag to be caried has a plurality of lateral walls having upper portions which form a gripping part and lower portions which form a body part, two first opposite walls are folded, two second opposite walls are provided in the region of the gripping part with a gripping opening and upper and lower welding seams which connect the walls with one another and separate the gripping part from the body part, one of the second opposite walls has a section adjoining the gripping part and is provided with window-like opening, and a covering foil covers the window-like opening of the section of one opposite wall.

Abstract: Apparatus for severing window patches from a web of patch material includes a mechanism for applying adhesive to selective portions of the web, a pair of cooperating rolls to feed the web to the adhesive applying mechanism, a vacuum roll engaging successive window patches with adhesive, a severing mechanism cutting successive window patches of a pre-selected length from the web in spaced relation to a portion of the web engaged to the surface of the vacuum roll, a vacuum conveyor positioned between the adhesive applying mechanism and the severing mechanism to advance the web along a path from the adhesive applying mechanism toward the severing mechanism, a discharging end portion of the vacuum conveyor being spaced from the severing mechanism. The vacuum conveyor is constructed and arranged to transport the web from the adhesive applying mechanism, a pre-selected distance through the vacuum roll before the web is transferred to the vacuum roll and from the latter to the severing mechanism.

Abstract: An adhesive closure bag with a Z-folded flap, together with a method of production thereof.

Abstract: A bag tying machine comprises a guide (17, 18) which receives the open end part of a filled bag as it is moved through the machine, a follow-up member (29) which is movable adjacent the guide (17, 18) following a bag to gather together the open end of the bag, and means (39, 40, 43) for supplying a length of pressure sensitive adhesive tape and holding it across the path of the gathered together end of the bag. The machine also includes a pair of pivoted arms (20, 21) having a first pair of jaws (30, 31), upstream from the length of pressure sensitive adhesive tape and against which the gathered together end of the bag is initially compressed, and a second pair of jaws (34, 35) immediately downstream of the adhesive tape which support the adhesive tape as the gathered together neck of the bag is urged into contact with it and which then clamp the adhesive tape around the gathered together neck of the bag to tie it together.

Abstract: An improved high speed method for producing quantities of discrete envelope assemblies, each assembly including an envelope and separate double folded enclosure formed from the same blank of sheet material and having personalized information printed on both the envelope and enclosure that is unique to each assembly.The method provides for continuous operation of the method steps all occurring one after the other as each assembly travels in the same general direction throughout all processing operations.

Abstract: A method for producing quantities of discrete envelope assemblies including at least one separate enclosure for each assembly, the invention allows formation of the envelope and enclosure from the same sheet of material and allows marking of both envelope and enclosure with indicia which can be unique to each assembly. The method particularly allows continuous, high speed manufacture of assemblies personalized by name and address or the like by printing the indicia on a web of sheet material followed by formation of the web into a plurality of separate envelopes and enclosures with the envelopes and enclosures having like indicia being associated, the method including the use of a fugitive adhesive effected during manufacture, the contour cutting of the web prior to folding and the maintenance of a singular direction of travel of the web and elements cut therefrom throughout manufacture.

Abstract: An improved high speed method for producing quantities of discrete envelope assemblies, each assembly including an envelope and separate enclosure formed from the same blank of sheet material and having personalized information printed on both the envelope and enclosure that is unique to each assembly.The method provides for continuous operation of the method steps all occurring one after the other as each assembly travels in the same general direction throughout all processing operations.

Abstract: A method of making multiple reclosable bag material, which comprises advancing from a supply source bag wall film in continuous strip form and providing confronting colinear wall panel portions with surfaces facing toward one another, feeding separable fastener assembly in continuous strip form from a supply source into corunning relation between the wall panel portions, and permanently securing to the wall panel portion surfaces oppositely facing base surfaces of the fastener assembly. The material thus formed is adapted to be split longitudinally into a plurality of bag material strip sections adapted to be sealed across at spaced intervals into bag units.

Abstract: Disposable receptacles for storing articles in sterile condition and having breather means integral with the walls thereof, as well as apparatus and methods for making such receptacles and the materials therefor, are disclosed. The receptacles are fabricated of a laminate comprising a layer of breathable barrier material such as paper and a layer of thermoplastic, polymeric material such as polyethylene. The breather means may be made by heat sealing the thermoplastic layers of a pair of laminated sheets together at small, selected areas and then separating the sheets causing localized delamination of the layers and the formation of ruptured, blister-like projections in the thermoplastic layers at the heat seal positions.

Abstract: An apparatus for stacking and joining, in a stack, bags of synthetic-resin foil or sheet material comprises a press for connecting the bags together at least along one edge, a conveyor for carrying the stack of connected bags out of the press, a device for stacking the bags and for transporting the stacked and unconnected bags to the press. According to the invention, the press is stationary and the stacking device comprises a plurality of tines upon which the bags are successively deposited against an abutment, the tines being then moved downwardly to deposit the bags on a grate along which the bags are displaced by a gripper to the conveyor and into the press.

Abstract: A single piece of woven material is folded in half along a fold line forming a sack top. Bottom free edges are sewn to form a bottom seam. Side free edges are sewn to form side seams which are spaced from the fold line. A single slit is formed from the fold line between the side edges. The slit does not cut lengthwise extending strips of the woven material, such that upon lifting the sack by lifting loops between the slit and the side edges, the lifting stress is evenly distributed among all of the lengthwise strips.

Abstract: A plurality of expandable bags are serially connected lengthwise in roll form. Each bag is of substantially long length and has an expandable gusset near one end thereof and traversely of the length. The gusset end of each bag is respectively connected to the filling or open end of the next bag by perforated or weakened structure. Various modifications of the position of the opening are incorporated. Also, the bags are rolled into serial form in a compact package for distribution and use with the gusset and opening portions of each bag being rolled inwardly to the inside of the roll, or outwardly to the outside of the roll. The method of making these serially connected bags in roll form is also included.

Abstract: Disclosed are a pouch for containing a material therein, a laminate film for the pouch, and a method for producing the pouch. The laminate film comprises a first plastic layer and at least one second plastic layer on which said first plastic layer is laminated. The first plastic layer is partially subjected to surface roughening treatment prior to the lamination, and surface irregularities are filled with a plastic material of the second plastic layer. In a pouch having substantially rectangular shape, at least one folded portion is provided at a side edge of the pouch. The surface roughened portion is positioned at and around the folded portion and at an external surface of the pouch. In one embodiment, the folded edge is provided at one side of the pouch and a heat sealed portion is provided at the other side edge thereof. In another embodiment, folded portions are provided at both side edges of the pouch and a heat-sealed portion is provided at a rear central portion thereof.