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| Number | Title | Issue Date |
| 4144300 | Chemical etching of record patterns and the like A method is disclosed herein for forming characters, figures, logos and the like on the surface of an article such as a record which is produced from a pattern. The pattern is formed initially according to customary techniques, and the characters are then... | 03/13/1979 |
| 4143022 | Foundry resin compositions comprising furfuryl alcohol and a copolymer of styrene and allyl alcohol Resin compositions suitable for use in the bonding of particulate refractory material, such as sand, in the production of metal casting cores and molds is provided wherein the composition is composed of furfuryl alcohol and a copolymer of styrene and ally... | 03/06/1979 |
| 4125526 | Vacuum blanket curing method A method of making a vacuum blanket for vacuum curing elastomeric and plastic materials and more specifically, it relates to making a vacuum blanket by spray coating a polyurethane liquid reaction mixture.... | 11/14/1978 |
| 4121328 | Method of manufacturing a nebulization-humidification nozzle A nozzle formed by the mating of two separable parts, a housing and a plug insert, having smaller diameter orifice formed at a first mating interface of these two parts, a Venturi chamber connected to the smaller orifice, being formed at a second mating i... | 10/24/1978 |
| 4120930 | Method of coating a composite mold A method of molding wherein a mold for shaping a material to be molded is formed by casting a first mold base portion formed of a bulk material such as Portland cement, carbon, graphite or castable ceramic material and the like to define a mold cavity, an... | 10/17/1978 |
| 4118287 | Method for making a metal master for producing a gramophone record There is described a method for making a metal master for producing a gramophone record provided with writing in the center thereof, particularly inside a pressure press, and according to which the engraving of the sound-grooves is obtained from a mold el... | 10/03/1978 |
| 4118553 | Composite battery plate grid and method of manufacturing A composite battery plate grid comprising a plastic support molded to engage portions of a metallic conductive member. Using first and second mold halves, the conductive member is cast in a first pattern in the first and/or second mold halves. The plastic... | 10/03/1978 |
| 4107254 | Method of lining pipes, molds or other tubular articles with thermosetting plastic material A method of lining a pipe with settable material including the steps of arranging the pipe with its longitudinal axis inclined at an angle to the horizontal, introducing a selected amount of liquid material into the pipe at a predetermined rate so that th... | 08/15/1978 |
| 4105184 | Plastic molding assembly for molding plastic products Plastic molding assembly having resistance to elevated temperatures in molding comprising a cooling chamber for flowing a cooling medium within the plastic mold body, a large number of metal radiating wires of good heat conduction and of easy plastic defo... | 08/08/1978 |
| 4104347 | Method of making a sand mold A method of making a mold by the use of sand is started by filling a mass of sand in a mold jacket which is in turn rammed to provide a block of sand. The sand block thus formed is excavated by a cutting device to form a mold cavity. The cutting device is... | 08/01/1978 |
| 4085184 | Method for producing packing rings for fluid systems and the like A method for forming packing rings from substantially any type of loose or ribbon fiber packing material are disclosed. The apparatus utilizes a plurality of concentric cylindrical members to produce the different sized packing rings, with the number of c... | 04/18/1978 |
| 4073049 | Method of making a reinforced foam-filled resin-impregnated fiber glass covered vacuum forming mold plug Method of making a mold for vacuum thermoforming is made by (a) applying a polyester gel coat to a master pattern; (b) applying a rigidizing mixture of a thermosetting resin and glass to the gel coat; (c) constructing and bonding an egg crate framework to... | 02/14/1978 |
| 4073836 | Method and apparatus for sealing a pipeline leak In one exemplar embodiment, a method and apparatus are provided for sealing leaks which occur at the flanged connections of pipelines wherein a wire is wrapped about the upper surface of the flange connecting bolts for filling the gap between the flanges ... | 02/14/1978 |
| 4072649 | Process for the production of foundry cores and molds Foundry cores and molds are produced from foundry sand and/or other inert fillers, polyhydroxyl compounds, polyisocyanates and tertiary amine catalysts. The precatalyzed mixtures can be stored for long periods of time without any adverse effects on the su... | 02/07/1978 |
| 4055613 | Production of three-dimensional designs Method of producing a three-dimensional pattern on a resin article which comprises producing a two-dimensional pattern on a flexible sheet or web of a heat-foamable plastic material, applying heat to cause said plastic material to expand, thus forming a t... | 10/25/1977 |
| 4054635 | Copolymer of glycidyl methacrylate and allyl glycidyl ether Copolymers of glycidyl methacrylate and allyl glycidyl ether having pendant epoxy groups, having an inherent viscosity of at least about 0.25, preferably within the range of about 0.25 to about 0.38, and an epoxy equivalent of at least about 0.65 epoxide ... | 10/18/1977 |
| 4049309 | Automotive vehicle An automotive vehicle is provided with a lightweight crash-resistant honeycomb core chassis which combines structural load carrying support with lateral impact resistance. The automotive vehicle is aerodynamically efficient having a chassis and body which... | 09/20/1977 |
| 4048270 | Disposable mold form and method of molding A disposable mold form for use in constructing a concrete coping along the upper edge of a swimming pool, and a method of molding such coping. The disposable mold form comprises a plurality of elongated form sections each having a surface portion configur... | 09/13/1977 |
| 4041114 | Indent duplicating process A method of making copies of information sets of the type carried by microfiche elements having integral lenses on one surface thereof. The microfiche copy is made by embossing the top surface of a plastic, planar blank to form the integral lenses. The bo... | 08/09/1977 |
| 4034032 | Method for foam encapsulating laser targets Foam encapsulated laser fusion targets are made by positioning a fusion fuel-filled sphere within a mold cavity of suitable configuration and dimensions, and then filling the cavity with a material capable of producing a low density, microcellular foam, s... | 07/05/1977 |
| 4031046 | Exothermic lining for metallurgical purposes and method of making the same An exothermic lining material for metallurgical purposes comprises 40-60% of aluminium dross, 1-12% of fibrous filler which may be inorganic or a mixture of inorganic and organic materials, 3-6% of binder, such as a phenoplast and up to 1% of wetting agen... | 06/21/1977 |
| 4024623 | Manufacture of isostress contoured dies Method for making isostress contoured dies by providing a cavity containing multiple vertical supports. A flexible material is tensionally secured across the top of the cavity to contact the supports and pneumatically deformed to assume an isostress conto... | 05/24/1977 |
| 4024007 | Lining cavities with heat insulating material A method of lining a cavity, such as, for example, the head box for an ingot mold, comprising applying to the surface to be lined a lining of a self-supporting deformable fibre mat refractory composition and then exerting pressure on that lining so as to ... | 05/17/1977 |
| 4021523 | Method of extruding plastic film A method of extruding plastic film is provided which employs a die comprising a die body having an inlet therein for receiving a plastic melt under pressure and having an annulus in the die in flow communication with the inlet and having a discharge orifi... | 05/03/1977 |
| 4014971 | Method for making a tympanic membrane prosthesis Synthetic anatomical members, such as a tympanic membrane and a malleus, are illustrated and a method for making them is disclosed. In accordance with the method, prepared collagenous tissue is placed in a mold and immersed in, or sprayed with, a buffered... | 03/29/1977 |
| 4007067 | Method for making and using hot stamp tape A web of indeterminate length carrying thermally transferable material, usually referred to as hot stamp tape, is structured to provide an improved simulated wood grain pattern on a substrate after transfer to the substrate of transferable portions of the... | 02/08/1977 |
| 3998918 | Method of making a portion of an hollow, annular, sand-core Method of making an annular sand core portion by shaping sand and binder in an annular mold with an inflatable bladder. The bladder is inflatable and expandable to form and press sand core material between itself and the mold body while exerting uniform c... | 12/21/1976 |
| 3994763 | Method of making a decorative article containing encapsulated material Method of making a sculptured plastic encasement with curved transparent optical quality front and rear faces formed by separately casting each face, then encasing an object within one of the face castings. Afterward on each casting a flat open to the air... | 11/30/1976 |
| 3993117 | Method for increasing the mechanical resistance of foundry moulds or cores made from a self-hardening liquid sand and a resin as binding agent Foundry moulds and cores of increased mechanical resistance are prepared from sand, a binding agent, a setting agent, and a surface active agent, the binding agent being a urea-formaldehyde resin or a urea-formaldehyde-furfuryl alcohol resin, the surface ... | 11/23/1976 |
| 3979489 | Method of making carpet underlay A method of making a carpet underlay is provided wherein the underlay is comprised of a sponge rubber body having a load-carrying surface defined by a plurality of cooperating closed-area coplanar portions which define the major part of the area of a plan... | 09/07/1976 |
| 3978187 | Method of making hollow elastomeric bodies Annular elastomeric bodies having intricate shapes are cast by dipping a heated, rotating mandrel into a solution of the elastomer, permitting the elastomer to creep into sharp recesses, dryng the coated mandrel and repeating the operation until the desir... | 08/31/1976 |
| 3976739 | Process for molding a pneumatic tire having a wide bearing surface A process for molding a tire having a wide bearing surface comprising the steps of molding reinforcing shoulders in a static mold and partially curing the molded materials; removing the partially cured shoulders from the static mold and placing them in a ... | 08/24/1976 |
| 3970734 | Method of forming a calibrated aperture in a molded article A method of molding a part having a calibrated aperture including actuating a tapered pin in an aperture of a female mold wall so that the pin engages and penetrates a desired distance into a core member disposed within the female mold, forming its own ho... | 07/20/1976 |
| 3969474 | Molded steel rule die for rotary die cutting A method of forming a steel rule die for the high speed rotary cutting and creasing of foldable carton blanks, characterized by the repeat accuracy of the die forming process, simplicity of assembly and operation for rotary die cutting procedures, and eas... | 07/13/1976 |
| 3968306 | Plastic articles having improved surface characteristics A plastic article having improved surface characteristics comprises a plastic body having adhered thereon a cross-linked film of a composition comprising (A) 10 to 90 parts by weight of a cross-linking unsaturated compound having a molecular weight of M a... | 07/06/1976 |
| 3965233 | Method of forming moulded articles A method of producing a moulded article from concrete or the like comprising; having at least a portion of a mould formed of expanded polystyrene; treating the moulding face of the expanded polystyrene to form a textured and/or patterned surface; applying... | 06/22/1976 |
| 3962393 | Method for making a hollow laminated article A method is disclosed for fabricating in a single stage hollow polymeric article of manufacture from a flexible fibrous material, regardless of the degree of complexity of the laminate. The material is applied to a hollow flexible envelope which includes ... | 06/08/1976 |
| 3956453 | Process for fabricating one-piece rocket motor heat barrier A method for molding one piece seamless contoured structures. The mold consists of a hollow, cylindrical mold member whose internal surface area defines the external surface of the piece to be molded, that is adaptive to receive a piston having a reservoi... | 05/11/1976 |
| 3956437 | Method and apparatus for casting a concrete column A reusable column mold particularly adapted for use in casting concrete pillars or columns, that mold including a sheet of flat, flexible material which can be rolled into a columnar configuration to erect the mold form and which can be readily stripped f... | 05/11/1976 |
| 3955266 | Vacuum sealed molding process for producing molds having a deep concave portion or a convex portion A molding process for casting operations in which castings having a deep concave portion or a high convex portion such as pots and bathtubs are cast using vacuum sealed molds on which films are applied to be in tight contact with them, and a film forming ... | 05/11/1976 |
