Abstract: A blister packaging system and method which includes a preheat station, a cold seal press station, and a trimming station to provide a blister-type cold seal bonded blister package. The method comprises feeding the adjacent sheets of thermoplastic material to a preheat station and preheating selected sections, usually edge areas, of the plastic material for very short periods of time to a tacky or melt temperature, thereafter cold pressing the preheated sections under pressure at a temperature of less than 60.degree. F. to cold bond seal the preheated sections, and thereafter optionally to trim the cold bonded thermoplastic sheet material to a finished size and recovering a blister, cold-bonded package.

Abstract: Devices for packaging selected items. More particularly, the present invention relates to devices for continuously packaging selected items in a controlled atmosphere enclosure. Further, the present invention relates to devices for continuously sealing containers containing selected items in a controlled atmosphere.

Abstract: An apparatus for sealing a covering material to an outer flange of a container includes a container carrier for aligning the covering material relative to the container so that a portion of the covering material is positioned over the outer flange of the container. The apparatus also includes a sealing assembly having a horn and a mechanism for applying pressure to the outer flange and to the covering material against the horn. The apparatus further includes a conveyor for moving the container carrier relative to the sealing assembly so that the outer flange of the container and the portion of the covering material positioned over the outer flange pass below the horn. In addition, the apparatus includes a mechanism for vibrating the horn at a predetermined frequency to cause friction between the outer flange of the container and the portion of the covering material positioned over the outer flange to seal the outer flange to the covering material.

Abstract: It is often desired to again seal packages, consisting initially of foils hot-sealed with one another, after opening and partial removal of the content in the package in order to at least partially separate the remaining content in the package from the environment. A resealing area is provided for this purpose besides the hot-sealing area, with which the top and the bottom foil are connected to one another, which resealing area consists of individual closing elements which, fitting into each other, are provided in the two foils. The foils are not threadlike connected with one another in the resealing area. Rather dotlike closing elements exist, which also permit a small undercut. They are formed in matrixes without a top die, which matrixes are thereby subjected to an underpressure, whereas the other side of the foil is under an excess pressure. The deformation is thus brought about purely pneumatically.

Abstract: A method for manufacturing a container filled with a product is disclosed. The container has a substantially tubular body portion of thin-walled plastic or laminated plastic material and a butt-weldable end-piece at each end of the body portion. A first end-piece is fitted to one end of the body portion and the product is introduced into the container via the open end of the body portion, a second end-piece 13 is introduced into the open body portion end to an intermediate position at which it partially projects into the body portion, and the plastic material of the body portion end region and the second end-piece is softened through application of heat energy. The end-piece by means of relative displacement between it and the body portion, is pressed into the body portion to its terminal position during evacuation of air from the interior of the container via an opening in the end-piece and the opening is thereafter heat-sealed.

Abstract: A method for capping jars to achieve a seal includes the step of heating the cap prior to placement on the jar. The heated cap is placed on the jar and tightened. The cap and jar are then heated to actuate a seal received in the cap.

Abstract: The present invention provides an easily openable sealed container consisting of a lid and a main body having a flange, wherein a sealing layer of the main body or a sealing layer of the lid has a number of microdents in the flange portion, the thickness of said sealing layer is 10-100 .mu., said sealing layer and an adjacent layer contacting therewith have a lamination strength of 300-2,000 g/25 mm width, and said sealing layer and the lid or the main body are sealed in the flange portion at a strength larger than said lamination strength, as well as a process for producing said sealed container.

Abstract: Disclosed is a method and apparatus for controlling the temperature of a container end portion during manufacture, said container being filled with a product 11, and comprising a substantially tubular body portion 10 of thin-walled plastic or laminated plastic material and a butt-weldable end-piece 13 at each end of the body portion, whereby a first end-piece is fitted to one end of the body portion and the product 11 is introduced into the container via the open end of the body portion, a second end-piece 13 is introduced into the said open body portion end to an intermediate position where it partially projects into the body portion 10, and the plastic material of the body portion end region and the second end-piece is softened through application of heat energy, characterized in that the end-piece 13, by means of relative displacement between it and the body portion 10, is pressed in to the body portion to its terminal position whilst cooling gas is supplied to the transverse wall 15 of the end-piece 13.

Abstract: Apparatus for atmosphere-modifying and sealing individual trays includes a film disposing roller disposed closely adjacent the top of the tray to define a nip region and an elongated gas injection nozzle spanning the nip region for injecting gas through the nip region between the film and the tray. A split conveyor belt advances the trays past the film disposing roller to a sealing unit utilizing band sealers for the longitudinal tray edges and reciprocal "hot bar" sealer for the leading and trailing tray edges. The gas injection nozzle injects the gas substantially perpendicular to the advancing direction, down and into the individual trays. An optional second gas nozzle provides a gas flow curtain across the tray leading edge.

Abstract: A method of positioning a continuous strip of tops over a continuous set of receptacles prior to sealing, wherein the following steps are performed repeatedly;the set of receptacles is advanced past sealing means through a distance equal to one longitudinal pitch of the receptacles or a multiple thereof;simultaneously, the strip of tops is released over a length equal to one longitudinal pitch of the tops or a multiple of said pitch, with said strip being driven by the set of receptacles, and with the longitudinal pitch of the tops being slightly greater than the longitudinal pitch of the receptacles; andapplying deformation to a central zone of each top level with the sealing means so as to shift the edges between the not-yet sealed tops so that they overlie the corresponding edges between receptacles.

Abstract: A z-tab innerseal for a container and method of application involves an innerseal having a first sealing portion for sealing a first portion of an opening defined by an upper rim of a container, a second sealing portion for sealing the remainder of the container opening and a flap portion between the first and second sealing portions which is adapted to be grasped and pulled upwardly by a user to remove the innerseal from the container opening. An advantage of the flap portion is that it allows the innerseal to be removed without having to penetrate or scrape the innerseal with a sharp object such as a knife. A method of forming the improved innerseal includes providing a blank of stock material having a folded portion, cutting the blank to form an innerseal, mounting the innerseal onto the rim of a container and sealing the innerseal to the container by passing the assembly through a heating station.

Abstract: A breather package for surgical elements such as sutures or suture-needle assemblies having a layer of fibrous material and a layer of plastic material forming a pocket therebetween. Longitudinal heat seals and transverse top and bottom seals are provided which form the package. The layer of fibrous material is provided with longitudinal strips of release agent material through which the longitudinal heat seals are formed. An apparatus for forming such a package is also disclosed.

Abstract: After plastic bowls have been filled with soup they are conveyed to a cleaning station. At this station downward needle-like jets of ambient air specifically conforming to the bowl flange surfaces blow contaminants off of the flnages and away from the containers, in either continuous or intermittent operations. Lids are then heat sealed to the cleaned flanges, and the sealed containers sterilized.

Abstract: The present invention provides a method and an apparatus for induction welding a first plastic member to a second plastic member. A contacting portion of the first plastic member is clamped into contact with a contacting portion of the second plastic member. A current is induced in conductive material external to the plastic members and proximate one of the contacting portions to generate heat sufficient to bond the contacting portions together. The method and apparatus are capable of sealing plastic members that are devoid of conductive material.

Abstract: A film cover is heat-sealed to the open end of containers and cut from a film stock by a cam-actuated, orbitally moving knife blade which severs the film stock along a circumferential region closely adjacent the container's open end. A major extent of the orbital movement of the cam-actuated knife blade about the open-ended container is preferably substantially circular (to closely conform to the circular cross-sectional geometry of open-ended containers to be film-covered). However, a minor segment of the knife blade's orbital movement is cam-actuated so as to follow a segment of an arcuate non-circular (e.g., elliptical) path to form a protruding tab on the film cover so as to allow a consumer to more easily grasp and remove the same. The film is preferably continuously supplied to the sealing and cutting zone, while the waste web (i.e., the film remaining after the film cover has been cut from the film stock) is continuously retrieved from the sealig and cutting zone at substantially constant rates.

Abstract: A multilayer container with a flange for sealing with a lid, wherein the thickness of the inner surface layer at the inner edge of the flange is thinner than that in the sealing area, is produced by a method wherein a circular portion of a multilayer sheet to be the flange is held at a certain pressure while the multilayer sheet is being thermoformed under specified molding conditions, with the other portion than the circular portion being stretched. Even a seal ring having an even surface serves as a means for sealing the resulting multilayer container with a lid while ensuring easy openability.

Abstract: Reclosable packages for food products and methods for making the packages, each package having a semi-rigid base including a recess for containing the food and a thin film flexible lid. The base has an upper peripheral flange extending from an edge of the recess to an outer edge, an elongated groove being formed in all but a minor portion of the flange. A rib is positioned within the groove. The lid and rib are formed from a first thermoplastic material while the base is formed from a second thermoplastic material having a fusion seal inhibitor relative to the first material. During the process of forming the package the rib is fusion bonded to the lid and peelably sealed within the groove, the lid also being peelably sealable to the flange. Spaced apart recesses extending across the groove are formed in the flange to provide rigidity to the flange.

Abstract: A method is disclosed wherein a lid is engaged to a container by the formation of interlocking waves of lid material and container meterial about the interior rim of the container. The interlocking waves are geometrically aligned relative to the interior of the container so as to maximize the burst strength of the container, and also to minimize the force required to peel the lid from the container. An unheated clamp head is used to clamp the lid structure immediately adjacent a heated seal head used to form the interlocking wave structure about the inside rim of the container. The unheated clamp head prevents any melted portions of the containter or lid from flowing to or towards the outside rim of the container. Interlocking waves of material are thereby prevented from forming about the exterior rim of the container.

Abstract: A method for sealing a retort container comprises the steps of heat-sealing an opening of a retort container after charging contents into the container so that a line-seal having a width ranging from 0.5 to 2.5 mm is formed to thus seal the container and then performing knurled sealing at a portion including the line-seal. The sealing method can provide a container having sufficient seal strength and does not spoil the beautiful appearance of the flange portion of the container even if contents thereof remain in the flanged portion or the like. Moreover, the method does not cause foaming in the sealed regions at all and it is not necessary to perform the sealing treatment under substantially severe conditions to prevent the occurrence of the foaming and, therefore, the method can provide containers having a sealed portion easily peelable.

Abstract: An induction heating package sealing system includes a control which applies full power to an inductor of a first period and reduces power gradually for a second period. A seal temperature profile gradually approaching a temperature goal is thereby achieved which provides for a more uniform seal.

Abstract: A method of packaging goods including providing a base and placing goods over the base. A flexible web of gas permeable skin wrapping plastics material is then applied over the base and the goods, and air or gas is evacuated from between the base and the skin wrapping so as to allow the skin wrapper to flexibly displace onto the goods to at least partially skin pack the goods. A lid is then applied over the skin wrapping and spaced from the wrapping. A desired gas is then provided in the space between the lid and the skin wrapping to enhance the keeping properties of the packaged goods by permeating the skin wrapping. The lid is sealed to the base so that the space is permanently retained, and the skin wrapping is attached relative to the base.

Abstract: A packaging machine for producing a reclosable package from a bottom film, a top film and a closure strip therebetween shall be designed to facilitate the generation of a hermetic seal in particular in the region of the closure strip with low film consumption. To this end a sealing station for sealing an edge portion between the product and the closure strip and an evacuation and sealing station having a chamber for sealing the package including the edge portion are provided.

Abstract: The present invention provides methods and means for lid sterilization and temporal sealing. With the lid sterilization means, a lid's whole surface is completely sterilized, while it is held and revolved, and the lid then is put on the opening of a container which is hung by a flange on a pair of rails and carried by a pushing plate. With the temporal sealing means, the lid is partially pushed on the flange by a heater and is briefly and temporarily sealed.

Abstract: An easy-open package has a vessel forming an upwardly open compartment and having an annular rim surrounding the compartment and a foil engaging the rim of the vessel part all around the compartment, having an open tab which projects laterally past the rim, and formed with a tear line extending around the compartment except at the tab and extending around and delimiting of the tab. The tab is unitarily formed with the foil and is connected to the foil by an integral web that overlies and is bonded to the rim. The bond between the foil and the vessel is substantially weaker at the web than elsewhere.

Abstract: An apparatus and process for iso-thermally sealing electronic packages with a thermosetting adhesive have first and second platens for holding and for heating a package and a lid, respectively. The second platen is operatively coupled to the first platen, so that alignment of the package to the lid is automatically achieved when the first platen and the second platen are placed in a sealing position. The process includes the steps of pre-heating a package and a lid, the lid having a mating surface coated with a thermosetting adhesive; and mating together the heated package and the heated lid when iso-thermal conditions are achieved. The iso-thermal seal process and apparatus are based on the principle of uniting the package and the lid with a thermosetting adhesive after all three components, and gases in the cavity as well, are already at a stable adhesive curing temperature.

Abstract: Packaging apparatus, using an upper film (6) pre-heated before contact with a lower film (9) on which products (not shown) are placed, has at least the central region heated by radiant heaters (7) and the marginal regions heated by hot air nozzles (10) at least in the region immediately preceding contact (8) between the upper and lower films.

Abstract: There is disclosed a closure which permits the opening of a membrane sealed nutritional or pharmaceutical product container in a single action motion which also maintains a hermetic seal under retort conditions. This closure includes a generally cylindrical side wall having threads along the inner surface thereof and retaining means for cooperative engagement with the lip of a plastic container, and a top having an annular rim portion and a center portion, with the top having a lower surface attached to a heat-sealable barrier able to be secured to the plastic container, with the top also having a center portion removal means. A method is also disclosed for providing a hermetic seal on plastic containers using the closure and plastic container of this invention.

Abstract: A method and apparatus for sealingly fixing a lid (20) to the opening flange (11) of a container body (10) includes a reception device (30) with a support surface (34) for receiving and supporting the container body by abutment of the flange against the support surface. A sealing device (60) applies a pressure to the lid placed between the sealing device and the flange to form a joint which units the lid with the flange. The reception device has a part-spherical surface (3) and a resting device (40) has a part-spherical surface (41) for cooperation with the spherical bounding surface of the reception device.

Abstract: A method and a device for seaming the end of a tube. In the method, the shell of the tube is placed onto the shoulder of the end piece, a sleeve ring is placed where the joint is to be produced, and the seaming is effected by smelting in a seaming element a plastic layer provided on the sleeve ring, tube shell and/or end piece.

Abstract: A reclosable display package of thin flexible thermoformed material with a bubble body for sealing to a plastic backing card is disclosed. The bubble body has top, left, right, and bottom flanges, and faces defining a bubble which encloses an article compartment. An egress opening is formed in one face or in portions of several faces of the body. The reclosable display package includes a cover independent of the body and connected to the body by an integral hinge. The cover is pivotable about the integral hinge to fully close the egress opening in the body of the package. The bottom, left, and right flanges of the blister together with portions of the attached backing card may be removed to form a package with no protruding flange on three sides.

Abstract: The present invention relates to a container for an integrated circuit wafer comprising a tray-shaped member having a recess and a complimentary sheet member sized to attach to and cover said recess, at least one of said members being made from a material selected from the group consisting of a single layer of a high nitrile resin, and a laminated layer of a high nitrile resin, a polyvinylidene chloride resin, an ethylene vinyl alcohol copolymer or a polyvinyl alcohol resin, and a method for storing the wafer.

Abstract: A method for joining a lid to a container includes the formation of interlocking waves of material at the location where the lid joins the container. The interlocking waves are geometrically aligned relative to the interior of the container so as to maximize the burst strength of the container and minimize the peel strength of the lid from the container.

Abstract: This invention pertains to a reclosable package having a body member, a base, a hermetic seal between the body member and base and snap locking projections in the side walls of the body member and base.

Abstract: A capsule charging apparatus for charging a hard gelatin capsule with a filling of powder, granule, or liquid continuously at every constant amount, in which operation processes such as receiving, holding, separating, charging with the filling, recoupling, and ejecting of the capsule are performed in order during one rotation of a turntable at plural positions defined by a predetermined rotation angle by which the turntable intermittently rotates, the turntable comprising a pair of rotary members disposed opposite to each other with a fixed space therebetween in the vertical direction of a vertical shaft, and between the upper and lower rotary members being interposed capsule guide members for connecting cap containing pockets with corresponding body containing pockets of the rotary members in order to separate the capsule into the cap and body and recouple them.

Abstract: An easily-opened container includes a container body with an opening portion and a lid cooperating with the opening portion. The lid has a central lid portion and a peripheral portion located outside this lid portion and sealingly and permanently fixed to the opening portion for closing the container. The central lid portion and the peripheral portion are separated from one another by a weakened portion which extends in the circumferential direction of the opening portion and at least partially around the opening portion. In a restricted region, the opening portion is provided with a recess located beneath the weakened portion. A stripping unit with fulcrum-effect is pivotally supported in a support region.

Abstract: Disclosed is a flexible package made of plastic and capable of standing by itself, comprising a generally cylindrically-shaped body, comprised of a flexible plastic film; a first cover part at one end of the cylindrically-shaped body; and a second cover part at the opposite end of the cylindrically-shaped body, wherein the cover parts are bonded to the plastic film by heat-sealing. Also disclosed is a packaged liquid product, in particular a product under gas pressure, and a method for producing the packaged product.

Abstract: A method and apparatus for sealing a flat lid with a lower layer of heat bondable material onto the upper, generally flat surface of a flange extending around the periphery of an access opening in a container of the type used to store a substance subsceptible to deterioration when exposed to atmosphere for a prolonged time such as prepared foods, which method and apparatus moves a separate and distinct heating unit with a downwardly facing heating ring in a preselected path, preferably circular in shape, between first and second positions, includes a generally fixed high frequency power supply for energizing said heating ring, connects this fixed high frequency power supply to the individual heating rings of the moving heating unit only when the unit is moving between the first and second positions, and energizes the power supply only while the heating unit is moving between the first and second positions.

Abstract: By means of the method proposed the joining of a cap and a body of a capsule used to enclose medicines, with the open end of the body already inserted in the cap, is achieved by directing a flow of hot compressed fluid, progressively on a circular portion of the cap overlapping a relative underlying circular portion of the body, so as to affect the entire circumference of the circular portion of the cap; the resulting seal between the said portions prevents separation, without breaking, of the cap or the body.

Abstract: This invention relates to a closure which permits the opening of a hermetically sealed plastic container in a single action motion, which also maintains the hermetic seal under retort conditions. This closure includes a generally cylindrical side wall having threads along the inner surface thereof and a top portion having a metallic disk with its lower surface coated with a fusible coating, such as polypropylene. An annular flange is provided along the inner surface of the side wall to retain the metallic disk between the annular flange and an inwardly inclined inner surface portion of the side wall. A method is also disclosed for providing a hermetic seal on plastic containers using the closure of this invention.

Abstract: There is disclosed a simply constructed apparatus for and a ready method of blockading a mouthpiece of a transfusion synthetic resin container used for medical drip infusion. Based on the apparatus and the method thereof, insertion of an instillation needle can be facilitated, and there is no leakage of fluid. Besides, low costs of manufacture suffice, and high efficiency can be attained.

Abstract: A method and apparatus for sealing a flat lid with a lower layer of heat bondable material onto the upper, generally flat surface of a flange extending around the periphery of an access opening in a container of the type used to store a substance susceptible to deterioration when exposed to atmosphere for a prolonged time such as prepared foods, which method and apparatus moves a separate and distinct heating unit with a downwardly facing heating ring in a preselected path, preferably circular in shape, between first and second positions, includes a generally fixed high frequency power supply for energizing said heating ring, connects this fixed high frequency power supply to the individual heating rings of the moving heating unit only when the unit is moving between the first and second positions, and energizes the power supply only while the heating unit is moving between the first and second positions.

Abstract: The invention relates to a method and a device for the sealing of a container (10) by means of a wafer (20). The container comprises one or more joining means (14, 16) which are adapted so that by a joint (12), e.g. a welding joint, they are connected in a leakproof manner, to the wafer in an edge zone (21) of the same. The wafer is held against a contact surface (32) of a retaining means so as to be moved by the same until it rests in its edge zone (21) against anyone of the joining means (14, 16). While the contact with the retaining means is maintained, the wafer is connected by a fixing means (50) in its edge zone in a leakproof manner to anyone of the joining means through the fixing means supplying energy to the edge zone so that a joint (12) is formed. The invention makes it possible to fix in a leakproof manner a previously cut wafer to the opening part of a container.

Abstract: A container comprising a body with a rim (6) of which at least the upper surface is of a first plastics material, and a flexible closure (8) of which at least the under surface is of a second plastics material different from the first, the body and closure being attached together by a heat seal formed between the said surfaces thereof, wherein the heat seal includes radially inner and radially outer ears (18,16) formed during the heat sealing operation by heat and pressure, each ear having a core (22,20) which is formed of the first plastics material and is joined integrally to the rim by a thin root (34,32), and an envelope (26,28) which is formed of the second plastics material integrally with the closure and which envelops the core and tapers in beneath the core to a position adjacent to the thin root of the core, both ears lying on the top of the rim around at least a substantial part of the container periphery, the closure having a free portion (10) located outside the heat seal for grasping by the user,

Abstract: This invention relates to a container with a metallic cover, including a container body having a plastic flanged portion and a metallic cover provided with a peripheral edge which is roll-seamed around the flanged portion. A method of manufacturing the container is also disclosed. The method includes the steps of applying as a coating a heat sealing compound onto an inner surface of the peripheral edge of the metallic cover, roll-seaming the metallic cover around the flanged portion of the plastic container body, and fusing the flanged portion and the peripheral edge by heating to mutually secure the flanged portion and the peripheral edge of the metallic cover. An apparatus for manufacturing the container is also disclosed.

Abstract: This invention pertains to a reclosable package having a body member, a base, a hermetic seal between the body member and base and snap locking projections in the side walls of the body member and base.

Abstract: This invention pertains to a reclosable package having a body member, a base, hermetic seal between the body member and base and snap-locking projections formed in the side walls of the body member and base.

Abstract: A flat top, thermoplastic coated, paperboard container including a separate cover member and a membrane-type seal, with corner gussets for providing (1) a liquid tight corner construction and (2) top strength and rigitidy for convenient commercial distribution and consumer use. The cover member serves only to protects the membrane, and need only be minimally tack-sealed to the structure to withstand transportation stresses.

Abstract: A dished foil lid is secured to a container having a flange at its top by placing the lid over the open top of the container with the periphery of the foil on the flange and the dished portion of the lid extending downwardly into the container, and by applying a heating tool to the exterior of the foil adjacent the inner edge of the top of the container. The heating tool preferably has a tapered tip portion so that when it is urged into the depression formed by the dished portion of the lid, the side surfaces of the tip bear against the part of the foil adjacent to the inner edge of the top of the container. The time, temperature and pressure of application of the tip are such as to cause the adjacent inner edge of the container to soften and, upon subsequent removal of the tool, a narrow seal is formed between lid and container at the inner edge of the top of the container. The resultant seal is not only uniform and hermetic, but is easily parted when one later peels off the lid.

Abstract: The combination comprises rigid planar thin sheet substrate means. An envelope defined by sheets composed of transparent material and having an outer edge is secured on the rigid planar thin sheet substrate means. A postage stamp is disposed between the sheets within the envelope. The envelope is sealed along its outer edge to confine the postage stamp while allowing a visual examination of the postage stamp through the envelope. A clear material is disposed over the envelope to form a transparent dome-like structure through which the postage stamp may be viewed. A particular feature of the invention is a method for forming rigid first and second planar thin sheet substrate members. The first member is registered with and disposed within a recessed area on one displaying face of the second thin sheet substrate member.

Abstract: The method and machine according to the invention allow the closing of containers, particularly pots and small trays for food products. The method consists successively in separably fixing a strip of closure material (1) on a support strip (2), the closure material strip comprising pre-cutouts (4) defining lids (5) for closing the containers (6), separating from the support strip (2) the portion (10) of the closure material strip (1) which is situated externally of the lids (5), fixing a lid (5) on each of the containers (6) and separating the support strip (2) from each of the lids (5) fixed on the containers (6). The machine according to the invention comprises a supply station (7) for delivering a complex formed by a closure material strip (1) fixed separably to a support strip (2), a separation station (9) for separating from the support strip (2) the portion (10) of the strip (1), and a recovery station (12 ) for receiving the support strip (2).