Abstract: Compositions from 25% to 65% of a synthetic rubber block copolymer and from 75% to 35% plasticizer by weight are heated and mixed and applied, usually with a curing agent, to the lid or cover of a container such as a drum or pail. The application may take place while the lid or cover is revolved and the heated mixture is flowed on. The synthetic rubbers may be of the groups comprising SBS rubber, SIS rubber, S-EB-S rubber. The plasticizer may be from the group comprising paraffin, oils or waxes, polyethylene, polypropylene or ethyl vinyl alcohol.Apparatus is also shown and described for implementing the application of the compositions to the lid or cover as it is revolved. If a groove is formed in the cover before reception of the composition, the apparatus extrudes or flows it into the groove and then the flowed-in material is permitted to set.

Abstract: The present invention provides a filter element made wholly of fluorocarbons resin, comprising as essential elements a filter material produced by folding a sandwich-form sheet comprising a filter membrane made of a fluorocarbon resin and net supporters made of a thermoplastic fluorocarbon resin superimposed on the both surfaces thereof into a pleat form and liquid-tightly welding the edge parts of the both sides of the pleated sheet, sealed end parts produced by embedding the both end parts of said filter material except the central openings into a thermoplastic fluorocarbon resin to force the resin into the pleats, whereby the both end parts are each integrally and tightly welded, and fluorocarbon resin caps welded liquid-tightly with said sealed end parts, and production thereof.

Abstract: A method and device for heat sealing thermoplastic materials is disclosed. A pair of flat resistance wires are encased within a plastic sheath and arranged in parallel with their flat surfaces lying in one plane. The wires are spaced from each other in a manner designed for maximum thermal emission. To weld together two thermoplastic materials, the sheathed wires are held between and in firm contact with the materials to be joined. A predetermined electric current is passed through the wires until enough heat has been generated to weld the materials together. The invention may also be applied to a process for heat sealing plastic lids to plastic drums. In particular, the sheathed wires are fastened to the lower surface of a thermoplastic drum lid. The lid, together with the resistance wires is clamped to a thermoplastic drum with a standard drum clamp. An electric current is passed through the wires for a period of time sufficient to heat up the wires and weld the lid to the drum.

Abstract: A packing container of the non-returnable type is frequently manufactured from laminated material which comprises a central carrier layer of paper with thermoplastic layers applied to both sides. As an opening arrangement, a pre-punched pouring opening is used which is covered on the one hand by a tear-off cover strip located outside the packing container and, on the other hand, by an inner protective strip. A method for sealing an emptying opening in accordance with the invention ensures that a part of the inner protective strip corresponding to the shape and size of the pouring opening accompanies the cover strip since the strips are heat-sealed to each other at the same time as they are pressed against each other by means of pressure fluid. An arrangement for carrying out the method comprises a heating device with a heatable zone and an outlet for pressure fluid.

Abstract: The present invention relates to a glue-free method for sealing closures to paperboard food containers, and also to the novel closures for such method. The present invention is particularly applicable to containers for moisture sensitive food items such as salt, and is characterized in the use of a thermoplastic vinyl chloride ethylene copolymer which functions both to provide a heat seal and effective resistance to moisture vapor transmission. The copolymer has sufficient slip to permit handling of the closures in automatic forming and heat sealing equipment.

Abstract: A capsule sealing machine comprising a rectifying unit for rectifying closed capsules, which have been supplied from a hopper, so as to assume a predetermined posture, a conveyance unit for conveying from a transfer station, at which the rectified capsules are successively transferred thereto, towards a delivery station, a liquid binder applicator for applying a liquid binder, for example, gelatin solution, to the overlapping joint area between the cap and the body of each of the capsules to provide a tamper-resistant seal, and a drying unit for drying the applied liquid binder.

Abstract: A thermoplastic container bottom is inertially spin welded into the interior of a cylindrical container body of paperboard internally lined with a layer of thermoplastic material. A body supporting mandrel has an expansible body engaging portion which is inserted into the body and subsequently expanded to define a cylindrical surface of a diameter exactly equal to that of the specified internal diameter of the body. A seating member at the end of the body supporting mandrel establishes the depth to which the container bottom is inserted into the body and is provided with a low-friction projecting resilient member which contacts the rotating bottom.

Abstract: Method and device for sealing containers wherein a foil or the like material is pressed on a container by means of a heater. An electromagnetic field is generated between a carrier and a counterpart by means of which field the carrier and counterpart are drawn together. As a result of this, the heating facility moves towards the container to be sealed.

Abstract: A closed pouch for infusion liquid is made from a continuously extruded plastics hose by providing transverse seals and cutting the hose in said seals, and an assembly of two necks and a filling hose connection is secured to the outer wall of each pouch, said wall being pierced when liquid is to be extracted from or supplied to the pouch through one of said necks. Such an assembly is made from plastics as a unitary structure together with closing caps for the necks and a common flange to be secured to said wall. One neck is provided, at the flange side, with an enlarged bore terminating in a shoulder which is substantially parallel to the flange, and a pierceable sealing pad is inserted from the flange side into said enlarged bore, the latter being eventually closed by the pouch wall.

Abstract: This invention is directed to means for expediting the fabrication of selectively-manifolded honeycomb structures for use as fluid filter elements. The method comprises the use of flexible masks which are properly aligned to the end faces of a honeycomb structure utilizing vibratory motion in conjunction with a locating wire. By varying the configuration of the masks, it is possible to fabricate a fluid filter element having a center zone which is selectively manifolded and an outer portion wherein at least the ends of the honeycomb structure cells are completely filled.

Abstract: A process and apparatus for sealing electronic packages and lids involves placing a heater preform device between the sealing surfaces of the package and lid. If the package and lid are ceramic, the preform may be metallic having a glass coating fused thereto. Similar glass coatings would be fused to the sealing surfaces of the package and lid. The metallic portion of the preform is then heated by, for example, passing an electrical current therethrough to melt the glass and effect the seal.

Abstract: A method for fabricating fluid containers in general, and more particularly, plastic fluid containers which are suitable for use in water mattresses. The containers are fabricated by first extruding a polymer mixture into a tubular configuration and cutting to the desired length. One end of the tubing is framed by a support member in such a way that a portion of the end of the tube folds over the support member. The support member is constructed in a manner so that it may be disassembled into two sections. A flat end piece section is then placed over the assembly and the thus-formed end assembly is positioned within a support fixture such that the sealing end surface of the assembly is supported on the upper face of the support fixture. The fixture is then moved to a sealing area where an induction heater generates sufficient heat to heat seal the flat end piece to the end of the tubular member.

Abstract: A packaging tube is provided which is substantially gas-tight and has low absorptivity, consisting of a tube of multilayer composite foil with a metallic barrier layer, a prefabricated plastic head piece having a discharge opening and an external thread, and a connecting body which consists of a composite foil containing a metal layer and at least one thermoplastic material layer. The head piece is placed on the connecting body and is welded thereto by means of the plastic layer. The circumferential rim of the tube overlaps the outer rim of the connecting body extending over or under the same, and its plastic layers are softened by the inductive generation of heat in the metal of the composite foil and are welded together while pressure is applied. The head piece has the shape of a cylinder or a truncated cone and is joined at its base area completely to the connecting body.

Abstract: A method and apparatus are disclosed for preforming a heat-shrinkable member to a pre-selected configuration which may at least partially conform to a container to which the member is to be applied. The preformed member is subsequently applied to the container so that the member is retained in association therewith, such as for tamper-indication. The heat-shrinkable member is initially preformed by the use of a preforming mandrel which may be at least partially configured like the configuration of the container. After the member has been heat-shrunk on the preforming mandrel, it is positioned in association with the container, and thereafter heated so as to further conform the heat-shrinkable member to the configuration of the container. By this technique, hightly desirable control of the heat-shrinking process is achieved, thus assuring proper conformance of the heat-shrinkable member to its associated container.

Abstract: This relates to the hot packing of products such as food within cans. In order to permit the use of less strength cans than heretofore considered practicable, it has been necessary prior to the closing of such hot packed cans to introduce a pressurizing media such as liquid nitrogen being preferred. It is here proposed to so apply the closing end unit to the filled can so as to permit the end unit to function as a piston and to effect a pumping action when it is applied so as to permit the internal pressurization of the newly filled can without requiring any additive.

Abstract: To simplify fitting and sealing the crystal (4) to the casing (2, 6, 8), assembly is effected by means of ultrasonic welding. The casing (2, 6, 8) and the crystal (4) are made of synthetic materials which are thermo-weldable to each other. The mating faces (8a, 4b) of the peripheral wall (8) of the casing and the crystal (4) are formed for reducing the contact area between the two parts to permit thermo-welding by subjecting the assembly to high-frequency mechanical vibrations imparted by a tool (15).

Abstract: In a method of sealing separate flat lids (16) on to a series of generally rectangular tray-like containers (11), particularly containers which are coated with a polyester such as polyethylene terephthalate for heat resistance, the containers are moved continuously along a line while a lid (16) is positioned with its margin in contact with a peripheral flange (26) on each container, marginal side portions (25) of the lid and/or the side portions of the container flange are bent, e.g. by profiled strips (23, 24) acting as ploughs, to form a V-shaped recess between them, hot air is directed into the recess, e.g. from elongated nozzles (31, 32), to activate adhesive within the recess and to heat the side portions (25, 26), after which the side portions are pressed into contact to seal them together, e.g. by profiled strips (33, 34) and pressure rollers (35, 36). The movement of the containers (11) is thereafter changed, e.g. by turning the line of movement through 90.degree.

Abstract: The invention relates to a method for the manufacture by means of shrink-forming of a packing container of orientation-stretched laminate comprising polyester and aluminium foil, the laminate being formed to a tube (14) and subsequently being made to shrink over a mandrel (10,28) to the intended shape.

Abstract: Methods and apparatus for bonding an overlapping portion of the outer cap (7,7') and inner body (6, 6') of a closed cylindrical capsule (5). A flexible tubular coupling (13,14,20) positioned around the circumference of the capsule (5) is compressed to exert an inward radial force (23) on the capsule (5) while ultrasonic vibratory motion is applied in a direction (12,12') parallel to the axis of the capsule (5) by an ultrasonic transducer (10,10') with a rigid tip (11,11') attached to the coupling (13,14,20). For bonding of gelatinous capsules (5), the unitary coupling (20) or split coupling (13,14) can comprise a polymeric elastomer material such as latex rubber with approximately the same acoustical impedance as the capsule (5).

Abstract: A multi-cell battery container and method of making same wherein a tubular extrusion having opposing ridged and grooved walls is cut to length and divided into a plurality of compartments by partitions subsequently sealingly mated with the grooves.

Abstract: A method for making a cosmetic pencil having a lead of solvent-based cosmetic composition.The leads are packaged in an airtight container, such as a plastic bag and stored in a freezer at a temperature below approximately 0.degree. for approximately 12 to 168 hours. The leads are then stored at room temperature for at least two hours and unpackaged. Then the leads are encased in grooved slats to form an assembly which is wrapped with airtight wrapping.

Abstract: A capsule-sealing apparatus for use in conjunction with capsule-filling equipment is disclosed which seals a two-piece ingestable capsule. The sealing apparatus includes a chamber having nozzles for dispensing the contents of the chamber, the chamber being supplied with hot, moist air of controlled consistency, preferably being achieved by mixing a supply of steam and air in appropriate proportions. The average pressure of the chamber is maintained slightly below that of the ambient atmosphere which acts to prevent the hot, moist air from leaving the chamber through the nozzles. Apparatus is provided for causing a momentary increase in the pressure within the chamber, which increase delivers the hot, moist air from the chamber through the nozzles into cap members adjacent thereto. The caps thereafter telescopically receive a filled body member of the gelatin capsule, a bond forming between the cap member and body member of the capsule upon their being joined.

Abstract: A method of manufacturing a self-supporting measuring probe suitable for application in a highly corrosive environment such as for example in a muffler or suction channel of a motor vehicle, is disclosed. The probe is provided with a protective foil which is applicable on a rigid substrate carrying the measuring layers, by means of a heat sealing process in which heat and pressure are simultaneously applied on the foil. In a preferred embodiment, the edges of the foil are fused to the substrate by a laser beam.

Abstract: Methods are disclosed for the sealing of gelatin capsules having hard shell coaxial cap and body parts which overlap when telescopically joined. Also described are apparatus and sealing fluids to seal the capsules.

Abstract: A process for manufacturing a lid having at least one outlet opening wherein a closure strip is sealed onto the lid covering the outlet opening comprising heating the closure strip to a temperature range of approximately 115.degree.-170.degree. C. within 10-15 seconds prior to sealing the closure strip onto the lid.

Abstract: This relates to method and apparatus for the packaging of a tubular shirred casing strand within a wrap sleeve. The wrap sleeve is provided with end portions which extend beyond the casing strand, and these end portions are heated and folded and deformed by way of a plunger which functions as a piston within a mold structure so as to define a rigid substantially solid end cap which is integral with the wrap sleeve.

Abstract: An apparatus for the application of controlled combinations of temperature, vacuum, pressure and time to seal capsules is disclosed. Also described are methods to seal capsules and to enhance the bonding of the sealed capsules.

Abstract: This relates to a system for reheating adhesive bonding an end unit to a can body under controlled conditions and then further telescoping the end unit relative to the can body to assure proper adhesive flow relative to the can body. An end unit has been previously applied to a can body and is bonded thereto by a hot melt adhesive which has partially set. The end unit is not in its fully telescoped position. The adhesive is reheated to a temperature wherein the adhesive has the desired fluidity, after which the adhesive is maintained at this temperature and the end unit is moved to its fully telescoped position with a bead of the adhesive flowing over and encapsulating the raw edge of the can body.

Abstract: A sealing cover has an upper layer of plastic film substantially impervious to moisture and bacteria. A second layer of metal foil film is bonded to the plastic layer with a layer of adhesive or by extruding the plastic onto the second layer. An additional layer of adhesive material is bonded to the second layer for adhering to a carrier liner in packaging the seal and engaging the container top in resealing the container upon removal from the carrier. Upon removal of the sealing cover from a container, telltale strips of the cover are left in engagement with the container to indicate the seal has been removed. In another embodiment, a layer of metal foil is laminated between two layers of plastic film. Slits may be formed in the cover to promote its tearing to leave telltale sealing strips on the container upon removal of the cover.

Abstract: A tube package of plastic material which includes a tubular shell part together with end closures front and back. The shell part is constituted of a cylinder of molecular-oriented plastic material, and its front end closure of a curved shrunk portion of the extension of the shell part. The rear closure of the shell part is constituted of a transversely sealed portion of the shell part.

Abstract: A method for making decorated battery casings wherein a thin walled plastic tubing such as of heat shrinkable material is cut to size, placed on a support member such as a mandrel, and is then decorated with a metallic foil decorative material by hot stamping. A transparent protective film coating is then placed thereon and the tube is heat crimped at one end. The casing is placed upon a cell or battery and heat crimped at the other end to complete the battery or cell encasing procedure. The procedure is particularly efficacious in providing metallic decorated plastic battery casings.

Abstract: An apparatus and method for sealing a film or foil or the like on to a container, by means of a downwardly movable heating device which is arranged between two columns or pillars bridged by a transverse member and below which the container can be passed, in a carrier member, are to be such that the operation of applying the film or foil to the container is automated and the operating procedure is accelerated.

Abstract: A process and apparatus for sealing electronic packages and lids involves placing a heater preform device between the sealing surfaces of the package and lid. If the package and lid are ceramic, the preform may be metallic having a glass coating fused thereto. Similar glass coatings would be fused to the sealing surfaces of the package and lid. The metallic portion of the preform is then heated by, for example, passing an electrical current therethrough to melt the glass and effect the seal.

Abstract: Disclosed is a process for preparation of metal vessels, which comprises lap-bonding circumferential open end portions of outer and inner members, each consisting of a formed seamless metal cup, to each other through an adhesive, said process being characterized by fitting both the outer and inner members to each other through an adhesive layer interposed between the open end portions of both the members, heating the fitted portions of both the outer and inner members so as to melt the adhesive layer, and cooling the fitted portions so that the temperatures of the fitted portions of both the outer and inner members are substantially equal to each other just before solidification of the adhesive layer and the adhesive is filled between both the open end portions.

Abstract: A cap heat-sealing apparatus for paper containers comprises a vertically movable head, a fixed pressing member provided on the bottom surface of the head, a pair of divided movable pressing members arranged around the fixed pressing member and connected to the head so as to be horizontally movable toward or away from the fixed pressing member, and a heating high-frequency coil attached to the head and surrounding the fixed pressing member. The fixed pressing member has an outer periphery shaped to position along the inner surfaces of heat-sealing container opening edge fitting portions of inverted V-shaped cross section formed at the outer periphery of a square paper cap, which has an aluminum foil layer. The movable pressing members have an inner periphery shaped to position along the outer surfaces of the fitting portions. The high-frequency coil is spaced apart from the fixed pressing member by a clearance for the fitting portions to enter.

Abstract: A package for storing therein a medical container in conjunction with a deoxidizer covered on at least one side thereof with a gas-impervious sheet and on at least one other side thereof with a gas-pervious sheet, which package is characterized by comprising a tightly sealed container adapted to hold the aforementioned deoxidizer in such a manner that the gas-pervious sheet sides of the deoxidizer rests on at least one of the inner sides thereof and provided in the inner side thereof adjoining the gas-pervious sheet side of the aforementioned deoxidizer with at least one passage for gas communicating with the atmosphere enclosed with the package.

Abstract: A method and apparatus for coating the interior edge of an open ended container with an adhesive strip or band. An open rim of a container abuts a flat surface on an adhesive applicator head. A flowable adhesive passes radially outwardly and thence axially, between the inner container rim surface and a part of the head, to deposit a band of adhesive, such as a hot melt adhesive, on the container inner surface. The flat surface of the head functions both to position the container relative to the head and to form a seal to thus permit adhesive coating up to the edge of the open container end.

Abstract: A cover 20 for a cell cavity 7 in a plastic watch case 2 is provided on its periphery with three lugs 28. The back surface 4 of the case is provided with three recesses 12 into which the lugs can enter freely. With the aid of a tool 38, the cover is rotated while ultrasonic or thermal energy is applied to the lugs. Thanks to this energy, the lugs themselves deform and move into the thermoplastic material in order thereby to form three undercuts. A bayonet joint closure assembly is thus formed. See FIG. 5.

Abstract: A method of providing a seal between the barrel portion and the end plate of a can including the steps of providing a metallic can plate having a circumferential peripheral portion of inverted U-shaped cross section, defining an annular groove, the peripheral portion including a free outer side wall, the can end plate being coated at its inner side with a first layer of heat-fusible plastic; providing a can barrel coated at its inner surface with a second layer of heat-fusible plastic; fitting the can end plate to the upper end of the can barrel such that the upper edge portion of the can barrel is tightly fitted in the annular groove and the can end plate; curling the free outer side wall at least one turn into the groove to form a curled and expanded portion protruding into the groove so that the groove has an upper portion and a lower portion narrower than the upper portion; pressing the curled and expanded portion against the upper edge portion of the can barrel so as to cause the upper edge portion of th

Abstract: A method is disclosed for sealing edible capsules comprised of telescopically engaged tubular capsule halves that define a junction seam between them. The method comprises adhesively applying against at least a portion of the seam a frangible, edible label adapted to cover the seam at the point of intersection therewith, and to fracture upon slight displacement of the capsule halves with respect to each other. In one embodiment, the present method comprises the preparation of individual labels, the application to such labels of a quantity of adhesive and the subsequent application of the labels to the capsule. In an alternate embodiment, the labels, comprising a film forming material, are directly applied to the capsule by the projection of a hot melt of the film forming material onto the capsule at the location of the seam.

Abstract: Disclosed is a process for the preparation of metallic bottles which comprises lap-bonding circumferential open end portions of upper and lower members, each consisting of a formed cup of a metal, said process being characterized by using at least one thermoplastic resin adhesive having a water absorption of less than 2%, as measured at a temperature of 23.degree. C. and a relative humidity of 80%, and an elasticity contribution ratio [R(t).sub.t=1 ] of from 1.times.10.sup.-4 to 5.times.10.sup.-1, defined by the following formula:R(t).sub.t=1 =J(t).sub.rec,t=1 /J(t).sub.t=1wherein J(t).sub.t=1 represents a creep compliance at a time constant of 1 second when the adhesive is caused to creep at a temperature higher by 30.degree. C. than the melting point of the adhesive under a shear stress of 50 to 5,000 dyne/cm.sup.2, and J(t).sub.

Abstract: Improved spin-bonding apparatus is disclosed for connecting a synthetic plastic end closure member to a composite container body wall, including an axially displaceable spinner member that is operable to an axially extended position in which it is rotated relative to the stationary mandrel by the rotatably driven spindle when the mandrel and spindle are in an initial axially spaced condition. The spinner member continuously supports the inner periphery of the sealing fin as the mandrel and spindle are displaced axially together toward their adjacent spin-bonding condition, whereby the sealing fin is protectively supported prior to positive spin bonding thereof to the synthetic plastic inner liner of the container body wall. The stationary mandrel is provided at its free end with a unitary sizing portion having a closely toleranced cylindrical surface for causing the free extremity of the container body wall to have a circular configuration.

Abstract: A spin welding system, and more particularly a gripping and aligning assembly, is disclosed for the fusing together of the two telescoped halves of a rigid gelatin capsule, which assembly utilizes a flexible diaphragm activated by an air pressure/vacuum source.

Abstract: Can lids made of metal, lacquered on both sides and featuring a pouring outlet covered over with a closure strip having a sealing surface of polyamide, often exhibit inadequate bond strength between the closure strip and the lacquered can lid surface. The bond strength can be increased if the can lid, after the closure strip has been sealed onto it, is heated until the polyamide melts and then the can lid with closure strip is subsequently cooled.

Abstract: Methods and apparatus are disclosed for the bonding together of two similarly shaped articles of similar thermoplastic material utilizing oscillatory motion between the two articles to generate frictional heat therein sufficient to form an hermetic seal therebetween.

Abstract: A fastening system (10) for fixedly securing a first member (12) and a second member (14) of a container (16). The first member (12) is generally planar in contour and the second member (14) includes a fastening portion (30) defining a dome configuration which is drawn from the second member (14). A slot (36) is cut into the fastening portion (30) on one side thereof with the other side defining a cavity (34). The first member (12) is inserted through the slot (36) and extends to a first member portion (38) contained within the cavity (34). The first member portion (38) is bent into a bent portion (38) out of alignment with the slot (36). An adhesive element (42) is inserted within the cavity (34) to substantially fill the same and adhesively secure the first member (12) to the second member (14). In this manner, first member (12) is fixedly secured in a substantially tamper-proof manner to second member (14).

Abstract: A flexible tube construction is provided including a tube body and washer, each comprising a laminate having a metal barrier layer and a plastic layer which are adhered to each other by a butt connection. A plastic tube head is adhered to a synthetic plastic tube head having an opening through which the contents of the tube can be removed.

Abstract: In the sealing of a glass container containing a product such as a food product by means of a cover comprising a metal foil having on one surface thereof a sealant layer of a thermoplastic resin, the opening end of the container is preheated, and the cover is placed on the opening end, after which the cover is pressed against the opening end successively by a heating plate and a separate pressing plate. By this process, a positive seal and a high sealing process efficiency are obtained even when the container content is a product such as a heated liquid food product and even when the rim surface of the opening end of the container has some projecting irregularities.

Abstract: A can manufacturing method comprises applying a water-soluble resin sealing substance to the side and end seam edges of a can body blank and end plates, producing a thin layer of sealing substance on the side and end seam edges under hot drying atmospheres, seaming the side edges of the body blank including the end edges of the end plates to form a complete can, and subjecting the seamed portions to an applied heating to allow the layered sealing substance in the seamed portions to melt and unite the seamed portions. The apparatus permits a sealing substance to be applied on the side edges of a can body blank on the conveying path.

Abstract: A method for sealing a rim-like opening in a glass container is described. The surface of the opening is treated with tin and/or titanium oxide precursors and with or without one or more of the groups consisting of fluorides, sulfur oxides and sulfur oxide precursors and then overcoated with a chromium III organic metallic complex. A membrane comprising a thermoplastic film is pressed onto the coated opening surface and heated to cause glass-plastic adhesion, forming a closure. The coating steps may be applied to glass containers immediately after forming and annealing as appropriate, or may be applied to glass containers taken from storage.