Mechanically Securing Parts Together By Reshaping Joint Portion Only Patents (Class 264/249)
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Patent number: 4773844Abstract: An apparatus for the production of a synthetic resin skin uses a mold for forming at least two separate skin sections which are then joined prior or after a final heat treatment. The synthetic resin skin sections are produced in at least two separate mold members, and the skin sections are then caused to contact each other along determined faces or margins which are joined under light pressure. Any so-called selvage is easily removed after the joining which intimately bonds the skin sections to each other due to the curing of the synthetic resin.Type: GrantFiled: April 8, 1987Date of Patent: September 27, 1988Assignee: Ymos Aktiengesellschaft IndustrieprodukteInventors: Hermann A. Bartels, Erich M. Christoph, Ruediger Leipnitz
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Patent number: 4769896Abstract: A small metal member (50) is secured to a surface (32) of a plastic member (30) by lock tabs (54) bent into a recess (34) in the surface (32), and the plastic material of a central boss (38) in the recess (34) is bulk deformed over ends (68) of the lock tabs (54) forming a recessed joint (70).Type: GrantFiled: May 13, 1987Date of Patent: September 13, 1988Assignee: AMP IncorporatedInventors: Keith R. Denlinger, William J. Rudy, Jr.
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Patent number: 4767298Abstract: An apparatus for heat staking plastic parts to other parts to form an assembly are featured, using multiple heating elements which are arranged in zones and which are separately programmable in terms of temperature and displacement to develop optimum deformation of plastic having different characteristics. The heating elements are isolated thermally to provide an improved conservation of heat energy.Type: GrantFiled: December 22, 1986Date of Patent: August 30, 1988Assignee: AMP IncorporatedInventors: Keith A. Bocchicchio, David L. Hall, Mark F. Jackson, Joseph R. Keller, Karl H. Letsch
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Patent number: 4763397Abstract: A method and apparatus for bonding two articles and in particular a metal trim strip to a thermoplastic article such as is used for automotive decorative window trim. The thermoplastic article includes a raised ridge portion which serves to provide means for accurately aligning the metal trim strip on the thermoplastic article. A plurality of holes are formed through the ridge portion at spaced locations along its length. The metal trim strip is preferably "C-shaped" in cross-section so as to define a channel having a restricted opening for receiving the raised ridge portion of the thermoplastic article. A controlled flow of hot air is directed into the holes of the thermoplastic article to plasticize a controlled portion of the thermoplastic material surrounding the holes. A stake is then projected into the plasticized material to displace the plasticized material into the channel portions of the metal strip.Type: GrantFiled: December 17, 1986Date of Patent: August 16, 1988Assignee: Douglas & Lomason CompanyInventors: Robert H. Tsukayama, Roger E. Abitz
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Patent number: 4761871Abstract: Methods and fasteners are provided for joining thermoplastic articles and for connecting a single thermoplastic article to a non-thermoplastic substrate. A first thermoplastic article and a second thermoplastic article can be placed against each other, and then localized adjacent portions of the articles are heated preferably with an ultrasonic heating device. A sharpened end of a thermoplastic fastener is driven through the heated areas of the first thermoplastic article and the second thermoplastic article. Upon cooling of the heated areas of the first thermoplastic article and the second thermoplastic article, those articles are looked to the thermoplastic fastener by fusion of the contacting surfaces of the articles and fastener.Type: GrantFiled: November 21, 1986Date of Patent: August 9, 1988Assignee: Phillips Petroleum CompanyInventors: James E. O'Connor, William B. Beaulieu
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Patent number: 4747199Abstract: A method and structure for assembling plastic parts is disclosed wherein a first part is formed with integral projections and each including a tubular shank and a plug attached to the shank by a frangible web. A second part having apertures therein which mate with the projections is secured to the first part by displacing the plugs into the shanks which are thereby caused to expand.Type: GrantFiled: May 14, 1984Date of Patent: May 31, 1988Assignee: Honeywell Inc.Inventor: Robert D. Kitchen
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Patent number: 4735311Abstract: A needle shield comprising an elongated tubular housing having a central bore, means at one end for detachably mounting the shield to the hub of a syringe assembly, and means defining an elongated generally cylindrical chamber in the end of the housing opposite the mounting means. An inner end communicates with the bore and an insert made of resilient impermeable pierceable material is snugly supported in the chamber. The chamber is of a diameter slightly greater than the diameter of the insert and includes a tapered wall portion at the inner end and has a section of smaller diameter than the insert to provide a tight generally hermetic sealing relation therewith. The wall of the chamber opposite the inner end is deformable to permit ease of assembly and deformation after insertion of the plug to firmly seat the plug in the chamber.Type: GrantFiled: April 9, 1986Date of Patent: April 5, 1988Assignee: The West CompanyInventors: Allen D. Lowe, Homer J. Brown, Jr., Arlington R. Harman
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Patent number: 4699748Abstract: A blow-molded container is provided with an insert occluding its top opening. A closure structure at least partially encapsulates the insert article and includes a frangible web formed against the insert article. The container can be blow-molded in main mold halves and the closure structure, including the frangible web, can be formed by additional mold halves while the insert article is held in the container opening by an arm that is subsequently retracted or while the insert article is supported on a parison portion that defines the container body. In the latter instance a complete overcap for the insert article can be provided.Type: GrantFiled: March 28, 1986Date of Patent: October 13, 1987Assignee: Automatic Liquid Packaging, Inc.Inventor: Gerhard H. Weiler
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Patent number: 4697340Abstract: A method of manufacturing a carrier assembly including a carrier strip with a plurality of modular telephone plug connectors secured thereto. Each connector has a housing with a tag integrally molded therewith and secured to the strip. The strip has a plurality of holes which receive projections extending from the tags. The projections interengage with the strip to secure the housings thereto.The method of manufacturing the carrier assembly described above which includes the steps of integrally molding a tag with a projection onto each of the housings; punching holes in the strip; locating a projection through a corresponding hole; and securing the projection to its corresponding hole.Type: GrantFiled: October 21, 1985Date of Patent: October 6, 1987Assignee: Molex IncorporatedInventors: James E. Finney, Weldon L. Brubaker
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Patent number: 4683096Abstract: A method of securing a strip of solid shaving aid to a face-engaging surface of a disposable razor cartridge.Type: GrantFiled: January 31, 1986Date of Patent: July 28, 1987Assignee: Warner-Lambert CompanyInventor: Frank A. Ferraro
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Patent number: 4683016Abstract: A two part closure for a container is comprised of a flexible foil sealing disk together with a flanged linerless screw threaded closure cap. During the process of applying the closure to a container, the flexible foil sealing disk is formed, heated, and is tack adhered to the rim of the container. A closure cap having downwardly extending spaced sealing flanges is then screwed onto the container. The cap's sealing flanges contact the flexible foil sealing disk on opposite edges of the container's mouth rim and, as the cap is screwed down, these flanges bring the flexible foil sealing disk into continuous, intimate sealing contact with the container rim. Additionally, the inner closure flange draws the portion of the flexible foil sealing disk situated within the container mouth tight to eliminate creases and wrinkles in the foil sealing disk.Type: GrantFiled: September 3, 1985Date of Patent: July 28, 1987Assignees: Sun Coast Plastics, Inc., Montreal Milling Cutter and Company, Inc.Inventors: Herbert V. Dutt, Istvan Foldesi, Paul A. Santostasi
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Patent number: 4672733Abstract: A method of making a shaft seal ring starts with a tube, optionally provided on its outside and/or inside with hydrodynamically-acting return elements, as may be cut from a hollow cylinder. The tube is axially slipped along a form with a continuously increasing diameter until its leading or lower end is shaped into a flange in the radial direction. The flange may be simultaneously joined to a reinforcing ring.Type: GrantFiled: May 28, 1985Date of Patent: June 16, 1987Assignee: Firma Carl FeudenbergInventor: Wilhelm Schmitt
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Patent number: 4671916Abstract: A method of identifying instruments, preferably surgical instruments, as belonging to a set comprises forming at least one bore in a location of each instrument belonging to the set such that said bore will neither substantially weaken the instrument nor interfere with its primary functions. The bore may be cast as part of or drilled partially or completely through each instrument. At least one colored plug of a preferably autoclavable material is then secured in the bore. The colored plug may have a distinctively-shaped head portion, or may have multiple end locks at intermittent positions, the excess of which can be cut away. Most preferably, the method of the invention comprises the step of securing the plug between a pair of differently colored washers. An instrument bearing indicia of a set comprises a colored plug inserted in a bore formed in said instrument and a means for securing said plug in said bore.Type: GrantFiled: November 13, 1985Date of Patent: June 9, 1987Inventor: Robert S. Hamas
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Patent number: 4671832Abstract: An access floor panel construction employing peripheral trim channel elements joined together at the panel corners and fixed at their mid-lengths to the edges of a main body. As disclosed, the trim elements are of an organic thermoplastic material and are ultrasonically welded together at their ends and thermoplastically deformed into receiving portions of the main body edges. An assembly fixture holds the trim elements in position for final assembly in a manner which reduces the size of any gaps which might occur as a result of dimensional tolerances in the panel components.Type: GrantFiled: September 17, 1985Date of Patent: June 9, 1987Assignee: Donn IncorporatedInventor: Stephen D. Cline
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Patent number: 4668458Abstract: A carbonated beverage package comprising a bottle having a neck with an external thread and a closure comprising a base wall and a peripheral skirt having an internal thread interengaging the thread on the neck. A flexible liner is interposed between the interior surface of the base wall of the closure and the open end of the neck. The closure is made of plastic and includes a portion at the juncture of the base wall and peripheral skirt which is axially deformable relative to the remainder of the base wall to a permanent shape. When the closure is applied to the ncek and the closure is rotated by relative rotation between the closure and the neck while simultaneously an axial force is applied to the deformable portion of the cap, the deformable portion is displaced axially relative to the base wall to a permanent shape causing the liner to be deflected about a portion of the outer surface of the neck adjacent the open end of the neck thereby increasing the contact of the liner with the neck.Type: GrantFiled: January 14, 1986Date of Patent: May 26, 1987Assignee: Owens-Illinois, Inc.Inventor: Ralph H. Whitney
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Patent number: 4668446Abstract: A process of making soft lenses from an esterifiable, partially cross-linked carboxyl-containing polymer, and a method of attaching a haptic to a swellable intraocular lens. The soft contact lenses are made by first forming a lens button from a hard polymer containing .alpha.,.beta.-ethylenically unsaturated carboxylic acid such as acrylic or methacrylic acid and 0.1-10 mols per 100 mols of monomer of a divinyl cross-linking agent such as 1,4-butanediol dimethacrylate. The hard lens button is then esterified by contact with an alcohol having up to 15 carbon atoms such as n-butanol under esterifying conditions in the substantial absence of water while simultaneously removing water of reaction. Unreacted alcohol may be removed by solvent exchange with a lower molecular weight alcohol and/or drying.Type: GrantFiled: September 27, 1985Date of Patent: May 26, 1987Assignee: Cilco, Inc.Inventors: David G. Kaplan, Said Pazirandeh, Mario M. Alvarado, Lucien Attal
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Patent number: 4664423Abstract: A polybutylene tubing coupling and method of making that coupling utilizes a male tubular connector element having the same inside diameter as the major extent of the tubing. A coupling element is provided with stop shoulder at one end and a series of annular radially projecting barbs on its outside diameter which are preferably undercut in the direction of the stop shoulder or tubing end. An end of the tube is treated preferably by heating to enable the material to expand and the tubing end is inserted on or slipped over the male element against the stop shoulder. In such position the treated tubing end is mechanically compressed between two semi-circular dies to cause the material of the treated tubing end to flow around the barbs. Thereafter a metal crimp is placed around the tubing end between the stop shoulder and the next adjacent barb, or over the top of one or all barbs. The tubing connection thus formed is then permitted to cool at ambient temperature for approximately 7 days.Type: GrantFiled: June 15, 1984Date of Patent: May 12, 1987Inventor: William W. Rowley
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Patent number: 4662045Abstract: An ink roller for use in a printing press is produced by crimping a heated tubular plastic jacket onto a metal cylinder. The metal cylinder is heated to a temperature of the same order as the temperature of the heated plastic jacket prior to fitting the latter onto the metal cylinder.Type: GrantFiled: May 8, 1984Date of Patent: May 5, 1987Inventor: Svein Grodum
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Patent number: 4661314Abstract: A heat shrinkable tubing is described which has a texturized surface. Upon applying the heat shrinkable tubing to a complex shaped object and applying heat the tubing shrinks radially and linearly, uniformly so as to preserve the texturized friction surface, shrinking over depressions and expansions of the complex surface without wrinkling.Type: GrantFiled: January 15, 1986Date of Patent: April 28, 1987Assignee: Essex Group, Inc.Inventors: Herbert R. Levine, Stephen G. Gerrato, Benoit L. Poulin
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Patent number: 4633559Abstract: A method and apparatus for staking a formable projection, for example, a tab or boss, to retain plural articles in a unitary assembly. A projection on a first article is brought into registering position with an aperture in a second article to form the assembly. The assembly is clamped by a spring-loaded clamp pad which bears against the second article and surrounds the projection. The projection is then staked by action of a tool which travels reciprocally within the clamp pad and has a tip which cooperates with the clamp pad to form a cavity of desired shape. The forming stroke of the tool is against the resistive force of the spring, which increases the clamping force of the clamp pad. The formed projection is therefore contained within the inner boundary of the clamp pad and tool tip to thereby promote uniform head formation.Type: GrantFiled: March 18, 1985Date of Patent: January 6, 1987Assignee: Michael LadneyInventor: Norman S. Loren
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Patent number: 4619801Abstract: A method is provided for producing a polymeric heat exchange panel of the type including a sheet with a multiplicity of longitudinally extending passages and a plurality of juxtaposed dividing walls respectively disposed between adjacent longitudinal passages, wherein each end of the passages is closed to define a manifold space and at least one of an inlet and an outlet communicates with at least one of the manifold spaces. The method includes forming at least one of the manifold spaces by severing longitudinally without substantial removal of dividing wall material said plurality of juxtaposed dividing walls toward and end of the sheet to form severed opposed sides thereof. The method further includes plasticizing the severed opposed sides of the sheet at an elevated temperature and molding the opposed sides together at end edges thereof to form a molded end wall having a longitudinal dimension substantially greater than a thickness of a wall of the sheet.Type: GrantFiled: May 29, 1984Date of Patent: October 28, 1986Inventor: Thomas P. Engel
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Patent number: 4611392Abstract: A method of assembling electromagnetic relays by securing and aligning the magnetic pole pieces in the base of the relay through the use of ultrasonic reformation of the base material.Type: GrantFiled: February 5, 1985Date of Patent: September 16, 1986Assignee: Potter & Brumfield, Inc.Inventor: Richard E. Bell
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Patent number: 4610834Abstract: A tool for installing a corrosion barrier ring into its groove behind the threads of a tapered box end comprises a tapered metallic liner for covering the threads and a suitable mandrel for carrying the ring to its location through the liner. A suitable seating tool may be used for the final seating of the ring in the groove. The tip is notched to permit axial deformation of the ring, but not appreciable radial deformation, so as to allow the ring to be positioned to the location of the groove. The tip of the mandrel is sized to prevent the ring from sliding over the mandrel as the mandrel is pushed through the liner. Rotating the mandrel starts the ring into the groove by straightening out the ring deformations and permits removal of the mandrel and the liner. The seating tool is then subsequently used for the final seating of the ring in its groove. Stacked tip pieces permit adjusting the contour and size of the seating tool tip to accommodate to a variety of ring shapes and sizes.Type: GrantFiled: September 26, 1985Date of Patent: September 9, 1986Assignee: Hydril CompanyInventors: Burwell E. Baron, Gary E. Kirsch, Keith C. Mott
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Patent number: 4608217Abstract: The ear plug (40) includes an elongate body with a rounded tip portion and of an elastic material enveloped by a deep-drawn sheath (41) of thin flexible plastics film material. Rearwardly the plug preferably has a neck portion from which the sheath projects in the form of a stiffer collar or flange. Production of the ear plug includes deep-drawing a thermoplastic film or foil into a sheath with desired thickness distribution, and filling the sheath with elastic material (53). Filling may take place simultaneously with deep-drawing, the body of elastic material constituting a die for deep-drawing in a forming hole (45), or after the deep-drawing. In the latter case, an elastic die body is used to advantage, the shape of which generally corresponds to that of the finished plug, for deep-drawing in a forming hole suited to the die body.Type: GrantFiled: October 2, 1984Date of Patent: August 26, 1986Assignee: Gullfiber ABInventor: Kalman Csiki
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Patent number: 4598457Abstract: A method of constructing a brake pedal comprises the steps of generating a continuous tubular member (18) by pultruding a thermoplastic or B staged thermosetting plastic resin through a die (16), attaching cross members (26 and 28) to the continuous tubular member (18), cutting the continuous tubular member (18) into segments (30 . . . 30.sup.N) of predetermined length, and deforming each segment (30 . . . 30.sup.N) to substantially define a pedal (60). The resin carries strands (14) and the segments (30 . . . 30.sup.N) are exposed to heat and pressure to permanently set the shape of the pedal (60). The cross members (26 and 28) are used to pivotally secure the brake pedal (60) to a vehicle in its installed position and also to connect the brake pedal (60) to an input member for a master cylinder or brake booster assembly.Type: GrantFiled: August 26, 1985Date of Patent: July 8, 1986Assignee: Allied CorporationInventors: Robert S. Kiwak, Tung Liu
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Patent number: 4588543Abstract: The specification discloses an air-to-air, polymeric heat exchanger having a housing and a core removably mounted within the housing. The housing includes four generally identical duct units, which are secured to one another, and a top and a bottom, which are secured to the duct units. The core includes a pair of end walls and a plurality of tubes extending between, and opening through, the end walls. Each end wall includes a plurality of tubular projections or pockets extending from the end wall in a common direction. Opposite ends of the tubes are secured within the tubular pockets in the opposite end walls. A method of constructing the core includes the step of severing the tubular projections after the tube are positioned therein to expose the tube interiors through the end walls. Preferably, the tubular projections are severed using a hot wire to also fuse the tubes within the end walls.Type: GrantFiled: September 13, 1982Date of Patent: May 13, 1986Assignee: Plascore, Inc.Inventor: Fritz Huebner
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Patent number: 4586609Abstract: A tag pin fastener assembly includes a first tag pin assembly member having a first connecting rod and a plurality of tag pins coupled to the first connecting rod in a predetermined spacing, and a second tag pin assembly member having a second connecting rod and a plurality of tag pins coupled to the second connecting rod in the same predetermined spacing. The two connecting rods are coupled together so that the tag pins on the first rod are alternately arranged with the tag pins on the second rod.Type: GrantFiled: January 18, 1985Date of Patent: May 6, 1986Assignee: Ben Clements & Sons, Inc.Inventor: Yong K. Won
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Patent number: 4571797Abstract: The machine comprises a transport chain wherealong a plurality of brackets are distributed for supporting the razor square central areas, horizontal fixed upper and lower abutment profiles wherealong the razors are caused to slide, a magazine for the razor blades packed in stacked relationship, below which a chest is mounted slidably which can be driven horizontally into a discharge position overlying the chain, a slider carried for vertical movement at the chest discharge position and adapted to be lowered onto the chest to pick up a blade therefrom by suction, and then to be further lowered, with the chest in its retracted position, and deposit the blade onto the blade holder strip of a razor, fixed contoured detents adapted to cause, as the brackets are being advanced, the blade covering strip to be bent around the tabs onto the blade holder strip, and a heater headpiece for securing the blade between the blade holder strip and blade covering strip.Type: GrantFiled: January 17, 1983Date of Patent: February 25, 1986Inventor: Athos Bergamaschi
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Patent number: 4566182Abstract: A riveting press wherein the motor for the movable riveting tool is started in automatic response to closing of two discrete switches. One of the switches can be closed by a rivet which is already applied to a workpiece, such as a piece of textile material, and such one switch is located at a variable distance from the riveting tools. The other switch is also located at a selected distance from the riveting tools and can be closed by a marginal portion of the workpiece whereby the tools automatically apply a rivet to that part of the workpiece which is disposed therebetween while the two switches are closed.Type: GrantFiled: April 11, 1984Date of Patent: January 28, 1986Assignee: William Prym-Werke KGInventors: Gerd Altwicker, Wilhelm Eiringhaus
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Patent number: 4566678Abstract: A method of producing useful hollow bodies and the resulting products. The hollow bodies are formed by providing a block of thermoplastic elastomer material having a selected initial axial height and providing the block with a selected axial core opening. An axial force is applied to said block sufficient to compress said block a substantial extent to reduce the free height of the block and expand the core opening transversely outwardly to define sidewalls for the hollow body. The axial force is removed, and the hollow body is prepared for use as a compression spring or other useful device.Type: GrantFiled: August 27, 1982Date of Patent: January 28, 1986Assignee: Miner EnterprisesInventor: David G. Anderson
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Patent number: 4558957Abstract: 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).Type: GrantFiled: August 12, 1983Date of Patent: December 17, 1985Assignee: ETA S.A., Fabriques d'EbauchesInventors: Elmar Mock, Jacques Muller
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Patent number: 4559197Abstract: A method and apparatus are described for flanging a tubular article of a crystallizable thermoplastic polymer, particularly of a saturated linear polyester material such as polyethylene terephthalate, which has been heat-set to an elevated temperature, e.g. for producing bodies for processable food and beverage containers. The open end of the tubular body is applied to a flanging die and heated to a flanging temperature above the glass transition temperature but below the heat-set temperature of the polymer. The tubular body and the die are forced together so that the softened end of the tubular article is forced to move outwards until it abuts against a stop ring to form the flange. The residual shrinkage in the polymer material helps it to take up the precise contours of the die and to form a well-defined flange. The flanged end is then cooled, preferably to a temperature at least 20.degree. C. below the flanging temperature, before releasing the tubular body 10 from the die.Type: GrantFiled: July 9, 1984Date of Patent: December 17, 1985Assignee: Metal Box p.l.c.Inventors: David A. Dick, Glyn Staines
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Patent number: 4557888Abstract: 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.Type: GrantFiled: September 9, 1983Date of Patent: December 10, 1985Assignee: Tetra Pak Developpement SAInventors: Anders R. Rausing, Erling I. Nilsson
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Patent number: 4547239Abstract: A motion-transmitting remote control assembly of the type including a flexible motion-transmitting core element movably supported in a conduit (28) supported by a fitting (12). A helical groove (24 ) is formed in a bore (14) in the fitting (12) and a raised helical ridge (30) extends radially from the conduit (28) and fills the helical groove (24) to provide retention of the conduit (28) within the bore (14) of the fitting (12). An apparatus (10) and method for attaching the fitting (12) to the conduit (28) wherein the fitting (12) is rotatably supported by a mandrel (82) as the conduit (28) is clamped (42) and forced into the bore whereby frictional engagement with the bore (14) of specific configuration causes the material of the conduit (28) to soften and move radially outwardly (30) to fill the helical groove (24).Type: GrantFiled: July 16, 1984Date of Patent: October 15, 1985Assignee: Teleflex IncorporatedInventor: John A. Carlson
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Patent number: 4531279Abstract: A leakproof joint construction for a pair of members disposed in abutting relation and method and apparatus for making the same are provided, the leakproof joint construction having part of one of the members deformed into an adjacent part of the other of the members so that the parts of the members are disposed completely beyond the plane of the outer surface of the other member while respectively being integrally interconnected to the remainder of the members by tubular portions of the members. The parts are interlocked together by an outward staking of the part of the one member into the tubular portion of the other member by a compaction of the parts, the parts and the tubular portions of the members respectively defining like polygonal configurations.Type: GrantFiled: August 23, 1982Date of Patent: July 30, 1985Assignee: Robertshaw Controls CompanyInventor: James C. Gunter
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Patent number: 4514352Abstract: A single-piece plastic shotshell casing and method of making same comprising softening one end portion only of a tube of uniformly biaxially oriented high density polyethylene sufficiently for forming and until a dollup is formed, then telescoping only a portion of the dollup into the rigid sidewalls of the tube, and then forming the dollup into a substantially thickened integral transverse base section constituting a head with a longitudinally extending primer opening therein, the base section being substantially biaxially oriented and the rigid sidewalls terminating a substantial distance inwardly from the outer end of the base section.Type: GrantFiled: September 22, 1983Date of Patent: April 30, 1985Assignee: Federal Cartridge CorporationInventors: Luke J. Davich, Jack A. Erickson, Richard W. Proulx
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Patent number: 4512947Abstract: The present invention relates to an improved method and apparatus for applying solvent to an object for the purpose of solvent bonding the object to another object. The present invention is especially useful in connection with narrow diameter hollow cylindrical objects such as tubing. The present invention is especially applicable to high speed and mass production requirements where numerous pieces must be solvent bonded in rapid succession.Type: GrantFiled: May 5, 1983Date of Patent: April 23, 1985Assignee: Charles Wyle Engineering CorporationInventors: Charles Wyle, Donald M. Shea
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Patent number: 4488345Abstract: 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.Type: GrantFiled: June 24, 1982Date of Patent: December 18, 1984Assignee: ETA S.A., Fabriques d'EbauchesInventors: Jacques Muller, Elmar Mock
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Patent number: 4479915Abstract: A float stopper is attached to the free end of a thermoplastic switch case constituting part of a liquid level sensor by forming the free end of the switch case into a hollow, cylindrically shaped projection, fitting the float stopper over the projection through a hole formed in the stopper and, forcibly inserting a caulking tool, heated to a temperature which is lower than the melting point of the thermoplastic material constituting the switch case, into the cylindrically shaped projection to soften and spread the projection until its outer surface abuts against the rim of the hole formed in the float stopper. Upon curing the spread portion of the caulking projection holds the float stopper rigidly in place with excellent mechanical strength.Type: GrantFiled: February 26, 1982Date of Patent: October 30, 1984Assignee: Aisin Seiki Kabushiki KaishaInventors: Kaoru Tsubouchi, Akira Funahashi
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Patent number: 4478777Abstract: A molding process for molding an elongated elastomeric member (60) with wire mesh sleeves (16) bonded to the ends (14). A molding preform (10) of elastomeric material is positioned within a seamless mold cylinder (26), and the open ends of the wire mesh sleeves (16) are mounted to end plug assemblies (30) slidably received into the mold cylinder (26) and positioned against the ends (14) of the preform (10). A specialized profile is formed into surfaces (44) of the respective end plug assemblies (30) and by heating of the mold (26), the ends (14) of the elastomeric preform (10) are molded to the profile, as well as bonded to the reinforcing wire mesh sleeves (16). Vacuum is applied to the interior of the mold to draw outgassing vapors through relief spaces therethrough. The completed elastomeric member (60) is removed from the mold cylinder (26) by stretching, the consequent reduction in diameter enabling ready separation from the mold cylinder (26) and removal thereof.Type: GrantFiled: February 25, 1983Date of Patent: October 23, 1984Assignee: Eaton CorporationInventors: Lyle O. Hoppie, Joseph H. McNinch, Jr., Gregory C. Nowell
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Patent number: 4474723Abstract: A plastic pipe part 1 is pushed across a head part 3 of a sealing sleeve 4, being supported by a support 8, thereby providing the plastic pipe part with a widened end 7. Subsequently the widened end is surrounded by an outer mold 11 with three successive widenings 12, 14, 15 and by means of a fluid pressure in the interior of the widened end 7, sealed by the head part 3, the widened end is provided with three socket end widenings 28, 22, 29. After removal of the support 8 the end portion 6 of the socket end is inwardly rebent around the head part 3 thus forming a groove chamber 5 retaining the head part 3 of sealing sleeve 4. Pushing the plastic pipe part across the head part is facilitated by applying a fluid pressure.Type: GrantFiled: April 22, 1983Date of Patent: October 2, 1984Assignee: Wavin B.V.Inventor: Adolf Irmer
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Patent number: 4461065Abstract: A fastening device by which a thermoplastic cover may be fixed to a tubular component. The cover fits tightly into the tubular component which is provided in the region of the cover with bores through which a lost pin is pressed after heating into the constituent material of the cover. The pin has a smaller diameter than the bore so that material displaced by the hot pin is able to flow into the bore.Type: GrantFiled: January 23, 1981Date of Patent: July 24, 1984Assignee: Interelectric AGInventor: Bodo Futterer
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Patent number: 4457886Abstract: The invention relates to a process for the production of coupling pieces which possess an undercut annular groove optionally provided with a sealing ring, in which process a sleeve, having an internal diameter which increases in steps towards the open end, is initially preformed, the terminal part of the sleeve is postformed in order to form the annular groove, after having optionally introduced a sealing ring into the preformed sleeve, and, during preforming, only the terminal part of the preformed sleeve is kept at the deformation temperature and the remainder of the preformed sleeve is cooled, the terminal part of the preformed sleeve being cooled after postforming.Type: GrantFiled: December 12, 1979Date of Patent: July 3, 1984Assignee: Polva-Nederland B.V.Inventors: Petrus M. Acda, Jacob Karreman
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Patent number: 4444700Abstract: An improved method for producing a reinforced hose. A tubular core is extruded and then heated in a microwave oven to at least partially cure the core. While the core is still hot, a powdered hot-melt adhesive is electrostatically coated onto the core and forms a fusion bond with the core. The coated core is cooled, a reinforcement is applied to the core, an optional outer coating is applied and then the composite is heated to finish curing of the hose and to melt the adhesive to bond the reinforcement to the core.Type: GrantFiled: September 29, 1982Date of Patent: April 24, 1984Assignee: Champion Spark Plug CompanyInventor: Bruce J. Fondren
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Patent number: 4438061Abstract: An apparatus for sequentially feeding a plurality of flow rate control tubes into containers which are subsequently used in gravity flow post-mix beverage dispensers, including a vertical feed hopper containing a plurality of flow rate control tubes, a feeder chute positioned below or at the bottom of the hopper for receiving the tubes single file, and a reciprocating pusher member which enters the lowermost tube and carries it horizontally from the dispensing station at the bottom of the chute into an aperture in a pliable plastic container which is transported along a conveyor transversely to the direction of the movement of the pusher member.Type: GrantFiled: November 23, 1982Date of Patent: March 20, 1984Assignee: The Coca-Cola CompanyInventors: Simon J. Richter, Ardashus A. Aykanian
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Patent number: 4428899Abstract: Method and apparatus of making socketed pipe-fittings of synthetic plastics material by injection moulding. Prior to starting the injection moulding process a sealing ring is held in somewhat pinched condition with reduced outer diameter at the level of means to be formed on the socket for receiving the sealing ring. During the injection moulding process the sealing ring is held in this condition and is isolated from the moulding cavity. After sufficient, but incomplete cooling of the socket formed, the sealing ring receiving means are partially and temporarily deformed, and the sealing ring is released to enable it to spring into the partially deformed ring receiving means. Thereafter the ring receiving means reassume their original form, thereby firmly gripping the sealing ring.Type: GrantFiled: June 18, 1982Date of Patent: January 31, 1984Inventor: Dirk van Manen
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Patent number: 4427612Abstract: A fleece is employed for the distribution of casting resin over a component surface to be sealed. Prior to the introduction of the casting resin, pressure is applied on the fleece with a heated stamp in order to smoothen the fleece. Through increased temperature of the stamp, or through a solvent, the fleece can be readily cemented together with the component surface. It is thus ensured that the fleece rests uniformly on the entire component surface to promote a favorable distribution of the casting resin.Type: GrantFiled: December 29, 1981Date of Patent: January 24, 1984Assignee: Siemens AktiengesellschaftInventors: Cornelia Albert, Ulf Rauterberg
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Patent number: 4425177Abstract: Medical bags composed of plastic sheets jointed at their edges and a fluid charging/discharging tube sealed between the edges of the sheets have sufferred, due to the use of a mold having smooth and straight land conforming with the surface of the tube, various problems such as formation of burrs by the displaced molten plastic material on the inner side of the product bag, weakening or generation of pinholes around the free end of the tube attributable to excessive thinning of the sheets and so forth. According to the invention, these problems are overcome thanks to the use of a mold which has a central first land of an inside diameter slightly smaller than the sum of the tube diameter and thicknesses of sheets and at least one additional land provided at each side of the first land, the additional lands having inside diameters increasing successively and slightly greater than that of the first land.Type: GrantFiled: September 28, 1982Date of Patent: January 10, 1984Assignee: Terumo CorporationInventor: Koji Shinno
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Patent number: 4423543Abstract: The application discloses a dimensionally stable link-belt comprising a multiplicity of helical coils arranged in interdigitated side-by-side disposition and connected together by respective hinge wires threaded therethrough, and also a method for producing the same wherein either or both of the coils and hinge wires, being of a synthetic thermoplastic monofilament material, deform on subjecting the belt to heat treatment under tension so as to impart dimensional stability to the total structure.Type: GrantFiled: June 23, 1982Date of Patent: January 3, 1984Assignee: T.T. Haaksbergen B.V.Inventor: Gerrit W. E. Leuvelink
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Patent number: 4414171Abstract: A method of making an inexpensive injection molded propeller for mounting on a drive shaft. The drive shaft is attached to the hub of the propeller by a chemical and thermal shrink fit and by deformation due to the rotational forces of the propeller thereby producing a positive locking hub on the drive shaft. The propeller may be used, not only for remote piloted missiles and aircraft, but can also be used with different types of boat inboard and outboard drives, vehicles and equipment requiring a propeller having a positive locking system for securing the propeller or the like to the drive shaft.Type: GrantFiled: January 28, 1982Date of Patent: November 8, 1983Assignee: The Boeing Co.Inventors: Brian J. Duffy, Eugene J. Gratz, Steven E. Potter, Royal A. Power