Preventing Adherence Of Shaped Material To Preform Patents (Class 264/264)
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Publication number: 20080237924Abstract: A filter cartridge includes a one-piece housing having a port and a filtration element disposed in the housing. The filtration element is a coherent filter block that can be, but is not necessarily, larger in cross dimension than the port. In one embodiment, the filtration element is a coherent filter block that generally conforms to the shape of the hollow interior, but is slightly smaller than the hollow interior so as to define a gap between the filtration element and the inner surface. One method for constructing a filter cartridge includes providing a housing having a hollow interior and at least one port, introducing a granular material into the hollow interior via the port, and transforming the granular material in the hollow material into a coherent filter block. Another method for constructing a filter cartridge includes providing a filtration element in the form of a coherent filter block, and overmolding a housing around the filtration element.Type: ApplicationFiled: June 9, 2008Publication date: October 2, 2008Inventors: Laurence W. Bassett, William Contaxis, Karl J. Fritze, Mahesh Z. Patel
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Patent number: 7429346Abstract: An orthopedic implant device and method is disclosed. Specifically, a knee mold system is disclosed, including elastic tibial and femoral molds, each of which may be configured and dimensioned as a unitary mold for in situ placement during a surgical procedure. Each mold may be manufactured from an elastic material that may be disposable. The tibial mold may further comprise a sidewall forming a cavity, markings for relative depth measurement, and depth rings for use as a guide for scoring, cutting, and/or trimming and tearing away an excess portion of the tibial mold. The femoral mold may further comprise a sidewall defining a cavity, two legs extending from a body of the femoral mold for forming the artificial condyles, and an eyelet for aiding in placement and removal of the femoral mold. The resulting prosthetic tibial and femoral components may form an articulation surface that mimics, at least in part, the natural articulation surface of the knee.Type: GrantFiled: June 28, 2004Date of Patent: September 30, 2008Assignee: Ortho Development CorporationInventors: Michael D. Ensign, Matthew M. Lowe, E. Marc Mariani, Michael H. Bourne
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Patent number: 7157036Abstract: The present invention provides a method to reduce adhesion between a conformable region on a substrate and a pattern of a mold, which selectively comes into contact with the conformable region. The method features forming a conformable material on the substrate and contacting the conformable material with the surface. A conditioned layer is formed from the conformable material. The conditioned layer has first and second sub-portions, with the first sub-portion being solidified and the second sub-portion having a first affinity for the surface and a second affinity for the first sub-portion. The first affinity is greater than the second affinity. In this fashion, upon separation of the mold from the conditioned layer, a subset of the second sub-portion maintains contact with the mold, thereby reducing the probability that a pattern formed in the conditioned layer becomes compromised. These and other embodiments are described herein.Type: GrantFiled: June 17, 2003Date of Patent: January 2, 2007Assignees: Molecular Imprints, Inc, University of Texas SystemsInventors: Byung Jin Choi, Frank Y. Xu, Nicholas A. Stacey, Van Xuan Hong Truskett, Michael P. C. Watts
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Patent number: 7111745Abstract: A boom for a load handling machine, the boom has a mounting by which the boom is mounted on a body of the machine, and at least first and second telescoped sections. In use, the boom carries a load handling implement at or towards its outermost end. The first boom section is telescoped within the second section and is extendible and retractable relative to the second boom section by an actuator. At least the first boom section includes walls made at least predominantly of a composite material. A bearing member is located where adjacent walls meet to extend along a substantial length of the first boom section to provide bearing surfaces during sliding of the first boom section relative to the second boom section. Bearings also may be provided on the interior of the second boom section to further protect the first boom section.Type: GrantFiled: April 11, 2003Date of Patent: September 26, 2006Assignee: J. C. Bamford Excavators LimitedInventors: Andrew David Nurse, Richard Way, David Panni, Paul Sherratt
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Patent number: 7048880Abstract: A molding process for a composite article uses a textured film layer to shape the surface of the composite article. The film layer is placed in the mold with the textured film surface exposed and a composite material is placed over the textured film surface. Preferably, the film layer is vacuum-formed onto the mold to take the shape of the mold. As it cures, the composite article takes the shape of the textured film layer to form a textured article surface. After demolding, the film layer adheres to the article as a protective coating, but can be readily removed from the article to expose an underlying textured surface of the article.Type: GrantFiled: July 24, 2002Date of Patent: May 23, 2006Assignee: General Motors CorporationInventors: Hamid Ghavami Kia, Peter Herbert Foss, John Neal Owens, Terrence James Wathen
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Patent number: 7025921Abstract: The invention relates to the production of a hybrid component, whereby a piece of metal sheet (1) is a least partly coated with plastic by injection molding, by means of the following steps: a) placing the metal sheet (1) in one mold half of an injection mold, b) closing the injection mold, such that a first mold cavity opposite an upper side (O) of the metal sheet (1) and a second mold cavity opposite an under side (U) of the metal sheet (1) are cut off from each other, c) treatment of the upper side (O) with plastic by means of at least a first sprue (9) to produce an essentially flat coating (4) connected to the metal sheet (1) and, finally, d) treatment of the under side (U) by means of at least one second sprue (10) to produce a reinforcing structure (6) connected to the metal sheet (1).Type: GrantFiled: June 16, 2001Date of Patent: April 11, 2006Assignee: ITM International Tools and Moulds GmbHInventors: Alfred Ilse, Manfred Bartl
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Patent number: 7022277Abstract: The invention relates to a method for producing objects and object parts formed by an assembly comprising at least two plastic parts (10 and 5; 10? and 5?), which can move in relation to one another with at least one degree of freedom and which are provided with surfaces having at least partially complementary shapes such that, in at least one geometric configuration, they are solidly interconnected on a common surface (11; 11?) in close, clearance-free contact The inventive method comprises the following steps: 1) molding of a first part (10, 10?) by compression or injection; 2) removal of the second tool, the first part (10, 10?) remaining solidly connected to the first tool which serves as a piece of support equipment or is installed on a piece of support equipment (60); 3) compression molding of the second part using the whole (110) of the first part which is integral to the support equipment and a third tool; 4) removal of the first support tool (60) and the third tool (55) and extraction of the assemblyType: GrantFiled: February 25, 2002Date of Patent: April 4, 2006Assignee: CEBAL S.A.SInventors: Michel Bosshardt, Bertrand Gruau
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Patent number: 6893590Abstract: A process for effecting a coupling between a plastic material and a metal surface comprising the steps of applying a powder of an adhesive polymer composition to the metal surface; then overmoulding the metal surface with a plastic material by injection moulding; and finally applying heat to the metal surface.Type: GrantFiled: March 13, 2000Date of Patent: May 17, 2005Assignee: Basell Poliolefine Italia S.p.A.Inventors: Gian Luigi Rigosi, Paolo Goberti
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Patent number: 6890467Abstract: In a method for producing a brake shoe (1), particularly a brake shoe for disk brakes in motor vehicles, by preforming a friction lining (6), arranged on a carrier plate (2), from a friction material fed into a press mould and by press-molding the friction material under pressure and heat to form a friction lining (6), it is provided that grooves (8) are formed in the friction lining (6) which are open at least towards the front face of the friction lining, that the friction lining (6) provided with grooves (8) is exposed to a scorching process, that, subsequent to the scorching process, an elastic filling agent (12) is inserted into the grooves (8), and that, subsequent to the insertion of the filling agent (12), the brake shoe (1) is subjected to a drying process, a hardening process or a cross-linking process depending on the filling agent (12) used.Type: GrantFiled: August 10, 2001Date of Patent: May 10, 2005Assignee: TMD Friction GmbHInventor: Christian Wiaterek
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Patent number: 6713185Abstract: A method of forming a reinforced polymer film structure is disclosed that includes the steps of slitting a biaxially oriented polymer film web having a top face and a bottom face into a first portion and a second portion, identifying the first portion and the second portion, and placing the first portion atop the second portion, such that the bottom face of the first portion is adjacent the top face of the second portion. This structure provides an impact and tear resistant laminate. Also disclosed is a method of forming a polymer film structure by identifying a molecular orientation direction profile of two portions of biaxially oriented polymer film and layering the two portions such that a molecular orientation direction profile of one does not coincide with a molecular orientation direction profile of the other.Type: GrantFiled: February 13, 2001Date of Patent: March 30, 2004Assignee: Mitsubishi Polyester Film, LLCInventors: Charles David Carlson, Jr., Russell Scott Foxhall
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Patent number: 6699419Abstract: A molding process that uses a textured interfacial layer to isolate the surface of a mold from the surface of a composite article produced with the mold. A solution is deposited on the mold surface to form the interfacial layer, whose surface opposite the mold is textured. The texture of the interfacial layer is then transferred to the surface of the composite article produced with the mold. After demolding, the interfacial layer adheres to the article as a protective coating, but can be readily removed from the article to expose an underlying textured surface of the article.Type: GrantFiled: June 5, 2000Date of Patent: March 2, 2004Assignee: General Motors CorporationInventors: Hamid Ghavami Kia, Sheila Farrokhalaee Kia, Joseph C. Simmer, Terrence James Wathen, Mark A. Buffa
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Patent number: 6688073Abstract: A method of forming a composite panel with a facade comprising a planar arrangement of thin discrete facers on a body of structural backing material. The method comprises the steps of providing a horizontal casting bed, providing a plurality of facers each with chamfers at corners between side-rear and end-rear walls, arranging the facers in abutting relationship atop the casting bed and in a selected pattern in a face down planar configuration so that the chamfers on the facers open upwardly and define narrow elongated sealant channels at joints between contiguous facers. Depositing a sealant in the channels and pouring concrete as a structural backing material atop the facers, the rear surfaces of the facers and the concrete adhering to form a composite panel.Type: GrantFiled: January 29, 2002Date of Patent: February 10, 2004Assignee: Chameleon Cast Wall System LLCInventors: Pieter Anthony VanderWerf, Ivan J. Becica, John Poignard, J. C. Henry, III, Jirair Youssefian
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Patent number: 6675431Abstract: The invention relates to a tube mounting, in particular of a windshield wiper system of motor vehicles, having a mounting tube (12) which has a hollow profile that on at least one of its free ends (13, 14) has a plastic bearing (15) for receiving a wiper shaft, the bearing (15) being extruded onto the at least one free end (13) of the mounting tube (12). It is proposed that the mounting tube (12) is closed on its at least one free end (13) by a sealing plug (22), which prevents injection molding composition from entering and supports the mounting tube (12) from the inside against the injection pressure.Type: GrantFiled: November 24, 2000Date of Patent: January 13, 2004Assignee: Robert Bosch GmbHInventors: Dirk Rachui, Tino Boos, Georg Bodendorf, Rolf Bischof
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Patent number: 6652793Abstract: The present invention provides a method of manufacturing a vehicle cup holder arm, and a vehicle cup holder assembly produced thereby. The method includes injection molding a first material to form a base including an attachment feature adapted for engagement within an aperture adjacent a cup holder opening in a vehicle. A second material is injection molded to form an arm cup around the base and includes an arm. The second material does not chemically bond to the first material so that the arm cup and arm are rotatable with respect to the base for adjustably securing a cup in the cup holder opening. A third material is injection molded onto the arm to form a soft rubber grip for engaging a cup. The cup holder arm may be movable vertically for adjustment with respect to differently-sized cups.Type: GrantFiled: July 8, 2002Date of Patent: November 25, 2003Assignee: Lear CorporationInventors: Dean Corrion, Joseph J. Davis, Jr., Jack S. Palazzolo, Michael J. Hier, Timothy R. Hubbert
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Patent number: 6638466Abstract: Methods for manufacturing composite material structures having one or more separable or replaceable skin portions. In one embodiment, the methods may include positioning first and second material pieces adjacent each other within a mold cavity and with a separating film disposed therebetween, introducing a first resin into the mold cavity to contact and substantially impregnate the first material piece with the first resin, and allowing the first resin to cure within the mold cavity to form a first part of the composite structure; and in which the separating film is substantially impermeable to the first resin.Type: GrantFiled: December 28, 2000Date of Patent: October 28, 2003Assignee: Raytheon Aircraft CompanyInventor: Ric Abbott
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Patent number: 6558312Abstract: An intraurethral device that can be used to inhibit leakage of urine due to incontinence is provided. The intraurethral device can include a urethral plug made from a biocompatible, flexible material. The intraurethral device can also include a first insertion element in operative communication with a second insertion element to facilitate self-insertion of the urethral plug into the urethra. Furthermore, in some instances, various mechanisms can be provided to keep the intraurethral device substantially sterile and/or clean prior to and/or during the insertion process.Type: GrantFiled: March 13, 2001Date of Patent: May 6, 2003Assignee: Clemson UniversityInventor: Robert A. Latour, Jr.
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Patent number: 6548000Abstract: A method of making a piece of plastic that is painted. The method consists in depositing a “peel-off” film inside a mold defining the shape of the piece, which film is suitable for being separated easily from the support to which it is fixed, in making the piece by molding over the film, in painting the piece in full, and in removing the film so as to uncover the non-painted portion of the piece.Type: GrantFiled: January 19, 2000Date of Patent: April 15, 2003Assignee: Companie Plastic OmniumInventors: Patrice Gobled, Weidong Li, Denis Gille
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Patent number: 6548431Abstract: This invention provides a process for making a nonwoven sheet of substantially continuous melt spun fibers by extruding melt spinnable polymer containing at least 30% by weight low IV poly(ethylene terephthalate), drawing the extruded fiber filaments at a rate of at least 6000 m/min, laying the fiber filaments down on a collection surface, and bonding the fiber filaments together to form a nonwoven sheet. The invention further provides a nonwoven sheet comprised of at least 30% by weight poly(ethylene terephthalate) having an intrinsic viscosity of less than 0.62 dl/g, where the sheet has a basis weight of less than 125 g/m2, and a grab tensile strength of at least 0.7 N/(g/m2).Type: GrantFiled: December 20, 1999Date of Patent: April 15, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Vishal Bansal, Michael C. Davis, Edgar N. Rudisill
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Patent number: 6514443Abstract: A method for manufacturing a ball joint (2) consisting of a ball-ended spindle (21) and a socket (29), having no bearing shell and being already assembled during the manufacture includes, placing the ball-ended spindle (21), which comprises a ball (23) without a flattened pole surface, into an injection molding tool (1). The ball-ended spindle (21) is retained by a core puller (13) that seals a hollow space of the injection molding tool (1) relative to the ball (23) and simultaneously forms a clearance (4) for realizing a maximum pivoting angle of the ball-ended spindle (21) relative to the socket (29), whereafter the ball (23) is directly coated with plastic by means of injection molding so as to form the socket (29).Type: GrantFiled: April 2, 1996Date of Patent: February 4, 2003Assignee: TRW Fahrwerksysteme GmbH & Co. KGInventor: Christoph Dorr
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Patent number: 6468457Abstract: The present invention provides a method of manufacturing a vehicle cup holder arm, and a vehicle cup holder assembly produced thereby. The method includes injection molding a first material to form a base including an attachment feature adapted for engagement within an aperture adjacent a cup holder opening in a vehicle. A second material is injection molded to form an arm cup around the base and includes an arm. The second material does not chemically bond to the first material so that the arm cup and arm are rotatable with respect to the base for adjustably securing a cup in the cup holder opening. A third material is injection molded onto the arm to form a soft rubber grip for engaging a cup. The cup holder arm may be movable vertically for adjustment with respect to differently-sized cups.Type: GrantFiled: December 8, 2000Date of Patent: October 22, 2002Assignee: Lear CorporationInventors: Dean Corrion, Joseph J. Davis, Jr., Jack S. Palazzolo, Michael J. Hier, Timothy R. Hubbert
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Patent number: 6444065Abstract: Rotatable plastic rollers are produced by either injecting between a roller shaft and an outer running roller layer a thermoplastic material which, during cooling down, shrinks toward the roller shaft and away from the outer running roller layer on account of a contraction in volume or, in the multi-component injection-molding process, by first injecting the outer running roller layer and then injecting between the latter and the roller shaft a thermoplastic material which then likewise shrinks toward the roller shaft and away from the outer running roller layer. The process produces plastic rollers comprising an inner running roller layer (2), which is bonded solidly with the roller shaft (1), and an outer running roller layer (3), which can rotate freely with respect to said inner layer by means of a sliding gap (6). The roller shaft may optionally also be sheathed with a thermoplastic elastomer. This may take place in the same process during the multi-component injection molding.Type: GrantFiled: July 3, 2000Date of Patent: September 3, 2002Assignee: Ticona GmbHInventors: Frank Reil, Hermann Kleinegesse
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Patent number: 6416700Abstract: A method of producing a resin-molded assembly and a method of producing a double-retaining connector in which the need for an assembling operation of resin-molded products connected together by pins is obviated, and also a molding process is shortened so as to reduce the production cost. Resin materials, used respectively for the molded products, are so selected that a shrinkage coefficient of the first molded product 21, having engagement pins 21b, can be higher than that of the second molded product having fitting holes 22c, and the first and second molded products are molded integrally with each other in an assembled condition by a multicolor molding method.Type: GrantFiled: June 18, 1999Date of Patent: July 9, 2002Assignee: Yazaki CorporationInventors: Yuji Hatagishi, Teruhisa Norizuki
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Publication number: 20020065483Abstract: A disposable unit-dose jet injection syringe having a cylindrically shaped syringe body. The syringe body has a rear open end and a forward closed end. The rear open end has an enlarged diameter forming a flange that retains the syringe to the driving system during the injection cycle. The closed end has an small area coined by a stamping process. A jet orifice is punched through the small area of the closed end. A cavity formed in syringe body is configured to hold a unit dose of liquid, drug, or biological. A piston is slidably engaged within the body to inject the unit dose. A driving system activates the piston to inject the unit dose out of the jet orifice. A method of manufacturing a jet injection syringe is also provided. A method of injecting a medicine is also provided.Type: ApplicationFiled: February 14, 2001Publication date: May 30, 2002Inventors: Nathaniel Leon, Phillip L. Gerwig
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Patent number: 6375699Abstract: The injection mold for insert-molding a synthetic material around the edge of a filter material comprising at least one particle filter layer and at least one active carbon layer of active carbon particles, is provided with a first mold half and a second mold half which comprise mutually confronting mold walls. In their assembled state, the two mold halves define a receiving space for the filter material, a molding space for accommodating the edge of the filter material and for forming the synthetic material to be arranged by insert molding around the edge of the filter material, with at least one injection channel entering the molding space, and a transition space arranged between the receiving space and the molding space for accommodating the edge portion of the filter material adjacent the edge of the filter material. The transition space is formed with a constricted portion for preventing the leakage of synthetic material from the molding space into the receiving space.Type: GrantFiled: April 11, 2000Date of Patent: April 23, 2002Assignee: 3M Innovative Properties CompanyInventor: Roland Beck
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Patent number: 6268037Abstract: The present invention relates to a method for making a shielded automobile component and the shielded automobile component itself. The component includes a composite formed of a metal sheet which includes protrusions which extend from a surface of the metal sheet and a blow-molded thermoplastic layer formed around the protrusions which fixes the blow-molded layer to the metal sheet during the molding process. The protrusions on the metal sheet define plain polygonal areas which are free of protrusions.Type: GrantFiled: October 28, 1998Date of Patent: July 31, 2001Assignee: Acoust-A-Fiber Research and Development, Inc.Inventors: Richard M. Butler, Hiten T. Shah
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Patent number: 6261499Abstract: A method for movably connecting two members. The method includes the steps of molding a first member in a first mold portion and placing the first member within a second mold portion. The method also includes inserting molten material into the second mold portion to form a second member. The method further includes limiting contact between the first member and the material to prevent bonding between the first member and to permit relative motion between the members. The method also includes cooling the molten material into a solid form, whereby an assembly is formed from the first and the second member. The method further includes removing the members from the second mold assembly.Type: GrantFiled: March 2, 1995Date of Patent: July 17, 2001Assignee: Xerox CorporationInventors: Eke J. Okeke, Robert D. Russell
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Patent number: 6248275Abstract: A slurry mixture of alcohol, particles and a binding agent undergoes partial solidification and curve-shaped molding in sequence on flat and curved molding surfaces respectively, to produce a curve-shaped foam product suitable for further fabrication as components of curved structures. The flat molding surface is lined with a release cloth on which the slurry initially undergoes partial solidification and is then molded as flexible core material transferred to the curved molding surface for additional shape molding purposes while alcohol removal is completed by evaporation followed by resin filling infusion to form a composite core as the curve-shaped foam product.Type: GrantFiled: June 29, 1999Date of Patent: June 19, 2001Assignee: The United States of America as represented by the Secretary of the NavyInventors: Dennis D. Zadra, Deborah A. Houghton, Vincent J. Castelli
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Patent number: 6221189Abstract: A method for manufacturing thermoplastic tubes from hollow thermoplastic sleeves by a variety of different manufacturing processes. The machine used in the method is a single apparatus having an indexing device with a plurality of mandrels for holding hollow thermoplastic sleeves for the purpose of transporting the same around a closed manufacturing path. The method involves advancing sleeves around the closed manufacturing path to form tubes from the sleeves.Type: GrantFiled: November 25, 1998Date of Patent: April 24, 2001Assignee: Thatcher Tubes LLCInventors: Ronald E. Kieras, John J. Rhoades
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Patent number: 6180044Abstract: To provide an air bag made of resin which can be easily produced and of which volume in the folded state is small, a first resin sheet 1 and a heat resisting sheet 3 are disposed to be superposed on each other in a mold 7. The diameter of the heat resisting sheet 3 is smaller than that of the sheet 1 so that the periphery of the sheet 1 are exposed from the heat resisting sheet 3. Resin is injected into a cavity 13 through a sprue bushing end 12 to mold a second resin sheet 2 and to bond the sheet 2 to the sheet 1.Type: GrantFiled: August 6, 1997Date of Patent: January 30, 2001Assignee: Takata CorporationInventor: Kinji Hirai
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Patent number: 6139788Abstract: The invention pertains to a method for manufacturing a ball joint composed of a ball-ended spindle (1), bearing shell (2) and socket, provided with a sealing boot (4) arranged between the socket and ball-ended spindle (1), in particular for a motor vehicle, by means of extrusion coating, with plastic in a split injection mold (6) the ball-ended spindle (1) provided with a bearing shell (2) placed on the ball (11). In order to create a ball joint which can withstand high stress and limit the assembly work required to complete the same, the housing-side opening bead (41) of the sealing boot (4) is positioned on the bearing shell (2), before loading the ball-ended spindle (1) in the injection mold (6), and is located between the bearing shell (2) and housing (3) by means of an extrusion coating.Type: GrantFiled: April 8, 1996Date of Patent: October 31, 2000Assignee: TRW Fahrwerksysteme GmbH & Co. KGInventor: Christoph Dorr
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Patent number: 6129880Abstract: A headed thermoplastic tube having a closure member is formed solely from a thermoplastic extruded, stretched sleeve by positioning the sleeve over a forming mandrel with an exposed portion and heating the exposed portion. The heated exposed portion is shaped into a head in a single step by contacting the exposed portion with a closure means which is later retained on the head after initial contact. The internal cavity of the closure means, which may have threads or grooves formed in the internal cavity, is made of an incompatible material to facilitate the forming of a head in said cavity. The closure means may also have tamper evident features.Type: GrantFiled: November 25, 1998Date of Patent: October 10, 2000Assignee: Thatcher Tubes LLCInventors: Ronald E. Kieras, John J. Rhoades
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Patent number: 6106753Abstract: A method for making shaped articles at room ambient temperatures without the addition of extraneous heat comprising the sequential steps:(1) forming a plurality of particles comprising a foamed admixture of starch, biodegradable polymer and water;(2) at room ambient temperature, applying to the surface of the particles finely divided drops of unheated water to effect wetting and softening of the outer surfaces of the particles;(3) without the addition of heat, compressing the surfaces of the surface softened particles to effect cohesion between the wetted outer surfaces of the particles, densification of the particles and formation of a shaped article; and(4) without the addition of heat, maintaining the particles under such compression for a time sufficient to render the outer surface of the particles nontacky by adsorption of water into the particles and by evaporation of water from the surface of the particles and(5) forming a protective skin on the outer surface of the compressed, non-tacky particles by hType: GrantFiled: April 10, 1997Date of Patent: August 22, 2000Assignee: Environmental Packing LPInventors: Randall Vann Redd, Don Boyd Schiewetz, Donald Mark Cyron
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Patent number: 6099779Abstract: A cover unit for a vehicle roof, which can be opened, has a cover plate, a reinforcing frame arranged therebelow, and a seal-receiving frame, injection molded around the outer periphery of the cover plate, the seal-receiving frame having an encircling groove for receiving a peripheral seal at its outer periphery. In a process for the manufacture of a such cover, an inwardly directed part of the peripheral seal directly serves as a core which forms the seal-receiving groove by which it is detachably interlocked with the seal-receiving frame.Type: GrantFiled: November 19, 1993Date of Patent: August 8, 2000Assignee: Webasto-Schade GmbHInventors: Hans Brandner, Hans Jardin
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Patent number: 6074588Abstract: A mold releasing agent comprising a silicon-containing compound represented by the formula:R.sup.1.sub.n SiR.sup.2.sub.4-nwherein R.sup.1 is ##STR1## (R.sup.3 and R.sup.4 are a hydrocarbon group having 1 to 4 carbon atoms), R.sup.2 is a hydrocarbon group having 1 to 4 carbon atoms or a halogenated hydrocarbon group having 1 to 4 carbon atoms, n is 3 or 4, and a silicon- and/or fluorine-containing compound having at least two hydroxyl groups or alkoxyl groups in one molecule. The mold releasing agent of the present invention is excellent in mold releasing property, has a long life, provides a good surface finishing of molded article, and has no influence on secondary processability.Type: GrantFiled: May 15, 1996Date of Patent: June 13, 2000Assignee: Daikin Industries, Ltd.Inventors: Masayuki Yamana, Tomohiro Hosomi, Hirotoshi Sakashita, Masato Kashiwagi
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Patent number: 6051176Abstract: Method for manufacturing brush bodies for tooth brushes, in particular for injection moulding brush bodies (2) consisting of at least two components (5-9), of the type whereby at least one first injection moulding piece (25) is formed of a first component (5) in a first mould (3), consisting of at least two mould parts (4-6); whereby at least one second injection moulding piece (26) is formed by providing the first injection moulding piece (25) in a second mould (7), which also consists of at least two mould parts (8-10), and by providing a second component (9) on the first injection moulding piece (25) in the second mould (7); and whereby every injection moulding piece (25) formed in the first mould (3) is transferred to the second mould (7) by a transfer part (1 5) provided between the mould parts (4-6-8-10) of the above-mentioned moulds (3-7), characterized in that the injection moulding pieces (25) formed in the first mould (3) are secured to the transfer part (15) during the transfer to the second mouldType: GrantFiled: October 21, 1997Date of Patent: April 18, 2000Inventor: Bart Gerard Boucherie
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Patent number: 6006497Abstract: Methods and apparatus for preparing a hot melt adhesive for packaging and for packaging same and a packaged, hot melt adhesive product are provided according to the present invention. Particularly, methods and apparatus are provided for rapidly chilling and dusting a hot melt adhesive mass to provide chilled, dusted hot melt adhesive masses which can be packaged without necessitating additional packaging around or between individual masses. A resulting packaged, hot melt adhesive product includes hot melt adhesive masses packaged without necessitating packaging around or between individual masses to prevent the masses from adhering to adjacent masses or shipping containers. The hot melt adhesive masses can be removed from a shipping container and directly inserted into a hot melt adhesive processing unit for various applications without requiring removal or disposal of additional packaging.Type: GrantFiled: March 26, 1997Date of Patent: December 28, 1999Assignee: Reichhold Chemicals, Inc.Inventors: Bruce A. Waver, David E. Mechling, Barclay S. Hickman
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Patent number: 6003227Abstract: A process for manufacturing a molded piston ring for a piston in a piston-cylinder unit from a material which can be molded in a master mold. The surfaces of the piston in contact with the piston ring are provided with a separating agent which substantially prevents adhesive contact between the piston and piston ring. The piston is placed in the master mold including a shaping piece which at least partially contacts the circumferential surface of the piston. As a result of piston ring material being pressed in at the contact point or contact points of the shaping piece an expansion zone is formed at the piston which is free from the piston ring material.Type: GrantFiled: December 5, 1997Date of Patent: December 21, 1999Assignee: Mannesmann Sachs AGInventors: Norbert Deppert, Gerald Fenn, Hasan Asadi
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Patent number: 5926952Abstract: In a method of producing a connector in which a metal terminal is supported by a core, and then a resin is molded around the core: the metal terminal is covered by a tubular member into which the metal terminal can be inserted, and a tubular distal end edge portion of the tubular portion is pressed against a surface of the core to thereby seal the metal terminal; and the resin is molded around the core.Type: GrantFiled: July 3, 1997Date of Patent: July 27, 1999Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Katsuya Ito
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Patent number: 5878475Abstract: A spindle assembly for a machine tool generally including a first housing having a bore provided with a lining formed of a structural polymer, a second housing disposed in the first housing bore in sliding engagement with the lining therein, a first spindle journaled in the first housing, a second spindle journaled in the second housing in axial alignment with the first spindle and operatively connected thereto for axial displacement relative thereto and rotational movement therewith and means for displacing the second housing relative to the first housing to correspondingly axially displace the spindles.Type: GrantFiled: April 3, 1998Date of Patent: March 9, 1999Assignee: Thermwood CorporationInventor: David A. Stutsman
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Patent number: 5779230Abstract: A composite button of an electrical device has a frame body (1) with a through bore that terminates at openings, and a button portion (2) with a pressing portion (3) extended through the through bore and a flange portion (4) fused to the frame body (1). A silicone resin layer (5, 24) is interposed between the frame body and the flange portion, and surrounds one of the openings. A method of manufacturing a composite button of an electrical device by molding a frame body, forming a silicone resin layer on a surface of the frame body, and simultaneously molding a button portion to a predetermined shape while fusion boding areas of the button portion contacting the frame body.Type: GrantFiled: June 6, 1996Date of Patent: July 14, 1998Assignee: NEC CorporationInventor: Junichi Nakao
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Patent number: 5779841Abstract: A container is constructed from a synthetic resin. The containers can be efficiently piled or stacked, since ears provided on the container do not prevent piling. The container includes: a bottom part, a drum part provided at the periphery of the bottom part and at least one ear on the drum part and formed by a kerf. The ear is formed unified with the drum part and can stand up from the drum part. A synthetic resin film covers the kerf in a liquid tight manner over at least the ear forming part of the drum part. The container is designed so the ear can stand in use while the container can pile without projection of the ear before using.Type: GrantFiled: June 5, 1995Date of Patent: July 14, 1998Assignee: Yoshino Kogyosho Co., Ltd.Inventor: Nobuo Yamanaka
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Patent number: 5730665Abstract: A golf ball has a core (1) enclosed with a cover (2) wherein the cover (2) is embossed on its surface with dimples by compression molding in a mold and includes an innermost layer (3), an intermediate layer (4), and an outermost layer (5). The intermediate layer (4) and the outermost layer (5) are formed of a laminate film while the outermost layer (5) is made of a material which is smoothly releasable from the mold. The golf ball is readily removed from the mold at the end of molding and has a high precision of dimple geometry.Type: GrantFiled: December 23, 1996Date of Patent: March 24, 1998Assignee: Bridgestone Sports Co., LtdInventors: Hirotaka Shimosaka, Keisuke Ihara, Yutaka Masutani, Michio Inoue, Atuki Kasasima
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Patent number: 5716575Abstract: A method for outsert molding a movable plastic part on a metal plate, wherein the movability is obtained automatically through the shrinkage of the plastic. The plastic part consists of a bridge element which traverses a hole in the metal plate and is integrally connected to opposing retaining elements by a film element. The size, shape, and rigidity of the film, bridge, and retaining elements are such that the forces produced during the shrinkage process lift the retaining elements off the metal plate.Type: GrantFiled: September 20, 1996Date of Patent: February 10, 1998Assignee: U.S. Philips CorporationInventors: Georg Kammler, Stefan Muller
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Patent number: 5679304Abstract: A method of manufacturing a panel button includes providing a molding die including a transferable molding die defining a cavity, a core molding die having a runner, a sprue and a gate and a stationary molding die having a sprue. A hollow space is provided in a bottom of the cavity wherein a push button is formed. A projecting portion is inserted into the cavity and is formed on the underside of the core molding die. Two hollow coaxial spaces are connected to each other, one to form a boss, the other to form an elastic arm. A plastic sheet is introduced into the cavity and is sandwiched between the transferable molding die and the core molding die. The plastic sheet has an unbonding portion at a position where the push button is to be formed. A molten resin material is injected into the cavity through the runner, sprue and gate. The thus formed panel button includes the push button on the plastic sheet.Type: GrantFiled: February 1, 1995Date of Patent: October 21, 1997Assignee: Yoshida Industry Co., Ltd.Inventors: Nobuhisa Watanabe, Mikihiro Kuramitsu
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Patent number: 5670111Abstract: A method of shaping polymeric structures by coating a support structure with a bond-preventing agent to attain a particular shape and subsequently coating the shaped structure of the bond-preventing agent with a polymeric bonding composition is provided. Such shaped polymeric structures can have one or more cavities which can be fluid-filled or gel-filled. Also provided is a hand-actuating retention female urinary catheter having an inner tube and an outer overcoat layer encircling the tube with an elastomeric collar with a shroud. A cavity containing a fluid is interposed between the tube and the overcoat layer. The cavity includes a balloon portion and a reservoir portion. The shroud encircles the reservoir section to inhibit the ballooning of the reservoir section when the reservoir section is squeezed to force fluid from the reservoir portion to the balloon portion through the sleeve portion of the cavity. The overcoat layer and the collar with a shroud are made of soft resilient material.Type: GrantFiled: August 2, 1994Date of Patent: September 23, 1997Assignee: Rochester Medical CorporationInventors: Anthony J. Conway, Philip J. Conway, Richard D. Fryar, Jr.
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Patent number: 5648036Abstract: Device consisting of an inner mold (15), an outer mold and at least one injection aperture arranged in the outer mold; for the manufacture of the corners of sealing frames, in particular tunnel sealing frames consisting in most cases of four assembled strand-shaped sealing profiles made of elastomeric material, whereby each sealing profile has open and/or closed grooves extending in the longitudinal direction and arranged on the profile base side, as well as additional ducts also extending in the longitudinal direction and disposed between the grooves and the profile back surface; whereby the manufacture of the corners of the sealing frames takes place according to the injection molding process.Type: GrantFiled: September 22, 1995Date of Patent: July 15, 1997Assignee: Phoenix AktiengesellschaftInventors: Siegfried Glang, Werner Grabe, Holger Gutschmidt, Jurgen Ludemann
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Patent number: 5624615Abstract: Modular stone panels simulate assembled masonry, and are useful for decorative walls, retaining walls, facings for structures and the like. Precast stone-faced panels are made by setting stones such as field stone having at least one relatively flat face, substantially directly on the bottom of a rectangular mold. The stones are set in the mold individually while packing sand around and between the stones but not under them. This is done by sliding each stone laterally across the bottom of the mold, thereby packing the sand while substantially keeping the stones supported immovably against the bottom. The stones do not float on a sand bed and the sand between them is packed. Thus the stone and sand are less readily displaced by concrete poured over them to fill the mold. The concrete bonds part way into the packed sand, which can be facilitated by vibration, causing a liquid portion of the concrete to diffuse into the sand.Type: GrantFiled: August 29, 1995Date of Patent: April 29, 1997Inventor: Daniel R. Sandorff
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Patent number: 5503700Abstract: A seal assembly for a movable window pane which is raisable or lowerable in a vehicle window opening includes a one-piece, closed-loop construction which is formed from two molded sealing elements secured together to form a sealing member adapted to be secured along the periphery of a window opening and to provide continuous sealing engagement with the interior and exterior periphery of the movable window pane. The one-piece seal assembly replaces a plurality of individual sealing components which are conventionally used to provide the weather seal between a vehicle window opening and a movable window pane which slides up or down to open or close the window opening.Type: GrantFiled: October 5, 1994Date of Patent: April 2, 1996Assignee: GenCorp Inc.Inventor: Ronald E. Dupuy
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Patent number: 5413661Abstract: A structural component such as a car door panel or door trim insert panel is produced in a single molding operation. For this purpose at least one premolded hard foam material block or member is inserted in a respective nesting mold cavity. Then an intermediate fiber material layer preferably in fleece form is placed on top of the foam material block. Then, a surface cover layer, such as a layer with a decorative exterior surface is placed on the intermediate fiber material layer with the decorative surface facing an upper mold section. The mold is then closed and the necessary heat and molding pressure are applied to laminate the intermediate fiber material layer to the cover layer. Then a nesting die applies additional pressure to the hard foam block for bonding the hard foam block to the intermediate fiber material layer.Type: GrantFiled: September 9, 1993Date of Patent: May 9, 1995Assignee: R+S Stanztechnik GmbHInventors: Gerhard Spengler, Ernst Spengler
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Patent number: 5368665Abstract: A method of applying porous building plates includes applying plate-like porous building plates having pores on the surfaces and then jointing them by means of a coated joint method. In the method, the pores on the surfaces of the porous building plates are packed with an acid soluble substance and then the plates are joined by means of a coated joint method. Subsequently, the surfaces of the porous building plates are washed with an acid.Type: GrantFiled: December 1, 1992Date of Patent: November 29, 1994Assignee: INAX CorporationInventors: Akihisa Koyama, Syoji Kitahara, Tomonori Honda