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7396881 |
Polyethylene compositions for rotational molding
Polyethylene blend compositions suitable for rotomolding, rotomolded articles, and processes for rotomolding articles are provided. The polyethylene compositions include a first polyethylene having...
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7364679 |
Tactical venting
A method of venting a rotational mold at a predetermined condition by actuating an actuating venting assembly pierces the shell of the molded article and introduces a passageway to relieve pressure...
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7343718 |
Method for making multiple-part concrete pole
This invention relates to pole structures used for supporting transmission and distribution lines, lighting and communications systems, highway signs, traffic signals, and the like. More...
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7326380 |
Surface and site-specific polymerization by direct-write lithography
Polymeric microstructures and nanostructures can be prepared with use of a tip to pattern a surface. A tip can be used to pattern a structure which can initiate polymerization. The structure can be...
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7309460 |
Photomask container
A container suitable for storing and transporting photomasks and including a container body, a cover, first and second cushions and left and right channels disposed in slots formed in the container...
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7250128 |
Method of forming a via in a microfabricated elastomer structure
A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion...
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7247268 |
Method for making a part with clearance volume by rotational moulding and resulting part
A cylindrical element is manufactured by a process which includes depositing successive layers of thermoplastic materials in a cycle by rotation moulding, or by a technique enabling a deposit of...
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7223314 |
Stretchable fastener
Stretchable fastener products are formed by providing a sheet-form fastener tape, slitting the fastener tape to form longitudinally extending bands of fastener tape and separating the...
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7201864 |
Rotomolding process with reduced cycle times
The cycle time for a rotomolding process is improved through the use of a molding material comprising a blend of at least two polyethylenes having narrow molecular weight distributions and...
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7198478 |
Method and apparatus of treating a disc plate
A method of treating a disc plate. has the following operations of: molding a mold disc plate through an injection molding; and spinning the mold disc plate at a high spin speed. The spinning...
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7191508 |
Method for manufacturing thin-film magnetic head sliders
A method for manufacturing thin-film magnetic head sliders is disclosed. Initially, an elastic layer, which may be made of poly-dimethyl siloxane (PDMS), is spun on a wafer and is thermally cured....
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7160496 |
Thermoplastic compositions containing metal material
Thermoplastic compositions containing metal materials and a method for preparing the same. The compositions are formed into particles having diameters suitable for a rotational thermoforming...
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7156940 |
In-mold indicia printing of plastisol parts
This invention is a method for the precise placement of indicia with high resolution into the wall of a hollow-form, molded plastisol part. The method includes the steps of preparing a plastisol...
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7144541 |
Method for fabricating molded resinous part with metal distributed in surface thereof
A method for fabricating a molded resinous part with a metal distributed in a surface thereof comprising: kneading a low-melting metal and a resin having a curing temperature lower than a...
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7118700 |
Method for inhibiting algae growth in water tanks and apparatus therefor
A method of inhibiting the growth of algae and like organisms in plastic water tanks exposed to sunlight comprises providing an outer tank surface operative to reflect off a substantial portion of...
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7108821 |
Method for making double-wall shells by centrifuging
A method of fabricating a double-walled shell of fiber reinforced plastic material is by centrifuging. The outer wall of the shell is made by projecting glass fibers and resin in a liquid phase...
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7097802 |
Disposable LMA
The disclosed method for fabricating low cost laryngeal mask devices includes providing a mold, the mold including interior walls that define a hollow interior volume. The interior volume includes...
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7048886 |
Methods and apparatus for molding plastic parts
Molding techniques and apparatus wherein at least one adjustable edge component can be used to alter the dimensions of the mold cavity between molding operations. Also disclosed are techniques for...
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7037455 |
Insert molding method
A method of insert molding a preformed item into a molded product, the molded product being formed by injecting a moldable material into a mold, is disclosed. The method includes adhering the...
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7011779 |
Poly-steel double wall tank
An improved double wall tank has two or more threaded fittings, with a steel outer tank and a thermoplastic inner tank. The inner tank is formed within the outer tank by rotational molding. The...
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6982057 |
Multi-layer rotational plastic molding
A multi-layer rotational-molded plastic article has an area, such as a sight line for viewing content levels, where an inside layer protrudes through the outside layer and may be bonded to it. A...
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6969741 |
Polyethylene compositions for rotational molding
Polyethylene blend compositions suitable for rotomolding, rotomolded articles, and processes for rotomolding articles are provided. The polyethylene compositions include a first polyethylene having...
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6969482 |
Method for polychrome plastic material injection molding
A method for polychrome plastic material injection molding in accordance with the present invention, in which, a molding board is provided with a plurality of cores, and the cores are each provided...
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6969480 |
Method of producing structures using centrifugal forces
A variety of hollow structures with unique morphologies were manufactured with a rotational spinning technique. Phase separation of soluble solutions or emulsions was induced within a filled mold...
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6936210 |
Wave molding method and apparatus for manufacturing cannulae
A method of making a cannula includes providing a plurality of polymer reservoirs with each reservoir containing a polymer material and providing a nozzle mounted within each reservoir of the...
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6929766 |
Dispense molding method and apparatus for manufacturing cannulae
A method of making a cannula utilizing dispense molding includes providing at least one dispense nozzle that dispenses a polymer material, providing a mandrel, moving at least one of the mandrel...
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6926656 |
Method and apparatus for fabricating corrugated composite stiffeners
An apparatus and method for fabricating corrugated composite stiffeners provides a base tool having grooves formed in an outer surface and a roller having a rotating shaft and a removable, lobed,...
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6902695 |
Stabilizer combination for the rotomolding process
A process for the production of polyolefin hollow articles comprises charging the polyolefin with a stabilizer combination comprising (a) at least one compound from the group of the organic...
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6899833 |
Method of manufacturing a molded article using a variable feedback molding system
A method of manufacturing a molded article from a settable mixture includes the steps of in-taking a plurality of components into a plurality of separate material discharge containers sized...
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6893598 |
Finishing guide for concrete piers
A device for finishing the ends of concrete posts, piers or columns has a form for imparting a smooth transitional shape to the periphery of the concrete post, piers or columns. The form may be...
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6881372 |
Solid state polymerized medical services
Device articles such as medical devices and parts thereof are thermoformed of a thermoplastic condensable polymer composition. After thermoforming the article is subjected to a solid state...
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6878325 |
Method of manufacturing a decorative cover for a lamp post
A decorative cover for a post having a hollow body. The hollow body includes a continuous wall having a substantially uniform thickness, and a cavity having at least one undercut that would prevent...
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6878323 |
Method of manufacturing a stay-in-place form
A stay-in-place method of manufacturing a composite form that is used to provide a strong and durable concrete structure. The form includes a composite shell having an inner wall surface defining...
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6843947 |
Method for roughing surfaces of concrete casted blocks
A method for roughing surfaces and edges of concrete casted blocks, comprising a block support surface having a plurality of surface sections. A first of the surface sections has a rear end thereof...
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6830720 |
Cooling tower top forming method
A method for forming a top for a cooling tower having a bottom wall at least one opening therein for accommodating an air current generator. The cooling tower top additionally includes a plurality...
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6818173 |
Polymeric blends formed by solid state shear pulverization and having improved melt flow properties
Solid state shear pulverization is utilized to form a compatibilized homogenous polymeric blend which has improved melt processing properties including a higher melt flow rate than the moldable...
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6793858 |
Method and apparatus for forming a flexible mat defined by interconnected concrete panels
A method and apparatus for continuously forming flexible mat structure in the form of spaced, interconnected concrete panels. The mat structure can serve as an erosion control mat along the banks...
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6787090 |
Method of producing structures using centrifugal forces
Hollow polymeric structures with unique morphologies are manufactured with a rotational spinning technique wherein phase separation of soluble solutions is induced within a filled mold as it is...
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6776950 |
Slush-molding method for the manufacture of imitation leathers, in particular for the upholstery of cars
A slush-moulding method combined with cross-linking, including the filling of a tank with a suitable quantity of ground polymer blend and the coupling of said tank with a heated mold is provided....
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6756007 |
Method for preparing an implantable prosthesis for loading into a delivery apparatus
A method and method to ensure the uniform collapse and diminished loading forces of a prosthesis, the prosthesis having at least one layer of biocompatible material. The device includes a way to...
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6737005 |
Method of producing solid dosage forms
A process for producing solid dosage forms by a) producing a plastic mixture which comprises at least one active ingredient and at least one polymeric binder, and b) shaping the plastic mixture to...
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6726864 |
Simulated stone texture process
Simulated stone texture products are obtained when specially selected materials are properly admixed and formed via rotational molding. These products are manufactured from suitable molds according...
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6719941 |
Polymer for rotomoulding
The invention provides a process for the preparation of a moulded polymer item, said process comprising obtaining a polymer moulding powder having a mean particle size of 1 to 2000 μm comprising...
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6713009 |
Method and apparatus for molding plastics with elongated metallic cores
A rotomolded plastic wall and ladder structure ( 10, 50, or 58 )), which may be an article such as a window well ( 10 ) or a manhole ( 50 or 58 ), includes a thermoplastic wall ( 12 ), a ladder...
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6706231 |
Method for compression molding plastic closures
Method for compression molding plastic closures having a peripheral skirt with an internal thread includes a first mold assembly having a male mold core and a second mold assembly having a female...
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6682685 |
Method of rotational molding using a resin blend
A method for making rotationally molded objects using resin blends. The resin blend comprises resin pellets and an amount of ground resin powder sufficient to yield rotomolded objects having...
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6673288 |
Multi element moving vacuum chamber and process for powder slush plastic casting
A multi element moving vacuum chamber (MEMVC) for rotational casting includes a mold having a predefined shape and an axis of rotation, and a box containing casting material. The MEMVC further...
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6663966 |
Use of dendrimers as a processing aid and surface modifiers for thermoplastic resins
Dendrimer additives incorporated in thermoplastic resins (such as polycarbonate resins) are effective to alter the surface characteristics of the thermoplastic resin. Such compositions can be...
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6649122 |
Aqueous colorant system for incorporation into plastics
A liquid colorant system for plastics comprising from about 10 percent to about 80 percent by weight colorant; from about 0.5 percent to about 30 percent dispersant; and, from about 25 percent to...
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6635213 |
Method of producing centrifugally cast, glass fiber reinforced plastic tubes
The subject of the invention is a method of manufacturing centrifuged, glass fiber-reinforced synthetic material pipes wherein liquid, curable resin, which contains a filler, together with glass...
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