Bizarre Patents
A beach chair which can be adapted for a woman who is pregnant and wishes to sunbathe in the prone position.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5352526 | Hardfaced article and process to prevent crack propagation in hardfaced substrates A composite article and process forming a soft metallic layer, underneath a hardface coating, on a metallic substrate, using cloth-like flexible preforms. The softer layer formed underneath the hardfacing should be one having a hardness below 35 HRC, pref... | 10/04/1994 |
| 5288551 | Flexible piezoelectric device A laminated piezoelectric device is formed by sandwiching a relatively rigid central electrode layer with a pair of piezoelectric polymer films and then with a pair of outer electrode layers which are less rigid than the central electrode layer. The lamin... | 02/22/1994 |
| 5286550 | Process for producing a patterned metal surface A surface modification process which provides a means of rapidly heating a thin layer of a polymer surface or a thin coating of material on a coated substrate and various surfaces produced by such a process.... | 02/15/1994 |
| 5286567 | Pellicle for photolithographic mask A pellicle for dust-proofing of a photolithographic mask used for patterning in the manufacturing process of semiconductor devices. The drawback due to dust deposition can be greatly decreased in the use of a pellicle made from a fluorocarbon resin which ... | 02/15/1994 |
| 5284711 | Method for forming a fluororesin film and articles having a fluororesin film formed by the method A method for forming a fluororesin film on a metallic substrate is described, which method comprising forming a chromium oxide film on at least one side of a metallic substrate and then forming a fluororesin film on the chromium oxide film. By this, good ... | 02/08/1994 |
| 5283126 | Utilization of flexible coating on steel to impart superior scratch and chip resistance Electro-deposition-coated steel is top coated with a flexible coating formed of a polyester having --OH functionality, a polyacrylate having --OH functionality and melamine-formaldehyde resin to provide substantially a stoichiometric amount of reactive si... | 02/01/1994 |
| 5281458 | Sunlight reflector A sunlight reflector for vehicles includes a first layer of polyester film having a reflectively coated side and a non-reflectively coated side; a second layer of polyester film adjacent said first layer and adherently joined to said first layer at interv... | 01/25/1994 |
| 5279899 | Sulfonated polyamides Sulfonated polyamides, e.g. aliphatic polyamides such nylon-6 and nylon-6,6, partially aromatic polyamides and polyaramides such as poly(phenyldiamidoterephthalate), provided with sulfonate radicals chemically bonded as amine pendant groups to nitrogen at... | 01/18/1994 |
| 5279900 | Bonded structure of aluminum alloy and rubber and manufacture process therefor A bonded structure 1 including an aluminum alloy plate 3 and a rubber 7 of vibration proof rubber adhering to each other with an adhesive wherein the aluminum alloy plate 3 includes aluminum alloy containing no more than 12% by weight of silicon and no mo... | 01/18/1994 |
| 5277960 | Substrate for magnetic recording medium and process of producing the same The first invention provides a substrate for a magnetic recording medium, which is prepared by forming a macro-concavo-convex pattern for improving CSS properties and a micro-concavo-convex pattern for improving magnetic properties on the surface, thereby... | 01/11/1994 |
| 5272014 | Wear-resistant coating for substrate and method for applying A multi-component, metal-containing, wear-resistant coating which is not homogeneous. The coating has a difference of a metallic element concentration of at least about 2 atom percent between the edges of the coating surface and the coating surface remote... | 12/21/1993 |
| 5270118 | Composites having improved surface properties Polymeric composite materials having a decreasing concentration gradient of polymer matrix from the material's surface to the material's interior and a process for making such materials, whereby polymer matrix is extracted from the interior of the materia... | 12/14/1993 |
| 5266387 | Wrapping film A wrapping film comprising at least an outer layer, an interlayer, and an inner layer in this order, (a) the wrapping film having a shear peel strength of 0.20 kg/cm2 or more and a 180° peel strength of 8.0 g/50 mm or less, (b) the outer layer... | 11/30/1993 |
| 5264290 | Rubber compound for tracked vehicle track pads A highly improved elastomeric composition, process, and articles made thef, wherein the novel composition is characterized by greatly increased wear longevity, thermomechanical stability, highly improved tear and tensile strength at high temperature usag... | 11/23/1993 |
| 5262227 | Aromatic polyimide film laminated with metal foil An aromatic polyimide film directly laminated with a metal foil and an aromatic polyimide film directly laminated on both sides with a metal foil wherein the polyimide film (substrate) comprises an aromatic polyimide layer-A of 6-200 μm thick whose polyi... | 11/16/1993 |
| 5262241 | Surface coated products Thin impermeable, corrosion-resistant, durable, dry lubricant coatings are provided as well as coated products and methods for the production thereof. The coatings comprise solutions of sulfur-containing metallic compounds and fluorocarbon polymers dissol... | 11/16/1993 |
| 5260102 | Shape-holding composite pressure sensitive plate A shape-holding composite pressure sensitive plate comprising a substrate of organic high-polymer, a metal sheet attached to one surface of the substrate and adapted to be bent by hand and to hold, in free form, its shape, a pressure sensitive adhesive ap... | 11/09/1993 |
| 5260120 | Two coat weldable primer for steel A mar resistant, weldable zinc-coated metal substrate capable of sustaining the life of a copper-tipped electrode used in welding the substrate through a minimum of 2000 welds is achieved by applying a weldable primer coating composition to the metal, hea... | 11/09/1993 |
| 5258232 | Articles from reinforced plasticized polyvinyl halide resin Compositions, composite articles and process for producing same are provided from a reinforced polyvinyl halide composition (A) comprising a high molecular weight polyvinyl halide resin, a plasticizer, and a reinforcement material, such as glass fibers, i... | 11/02/1993 |
| 5258213 | Multilayer thermoplastic composites Multilayer thermoplastic composites comprising (a) a layer comprising a polyamide molding composition, (b) a layer comprising a polyester molding composition, and (c) an adhesion promoter intermediate layer (a) and layer (c) find use as structural compone... | 11/02/1993 |
| 5256472 | Fluorine resin type weather-resistant film A fluorine resin type weather-resistant film of multi-layer structure comprising a front surface layer made of a composition (A) comprising, as main components, from 50 to 95 parts by weight of a vinylidene fluoride resin and from 5 to 50 parts by weight ... | 10/26/1993 |
| 5256490 | High opacity flexible composite material A high opacity flexible composite material is receptive to printing on opposing outer surfaces without a printed image on one surface being visible from the other and without a printed image on the other surface being visible on the one surface, the compo... | 10/26/1993 |
| 5254412 | Heat resisting adhesive material A heat resistant adhesive material which comprises an aromatic polyimide supporting film wherein the main component of the film is a repeating unit of the general formula: ##STR1## Ar1 is an aromatic tetracarboxylic acid residue, Ar2 | 10/19/1993 |
| 5252391 | Surface treated sliding or rolling contact element and rolling bearing A surface treated sliding or rolling contact element, including a reaction product film of a 0.05 μm to 0.5 μm thickness which has been produced by a chemical treatment of the surface of the sliding or rolling contact element wherein the reaction produc... | 10/12/1993 |
| 5252405 | Rubber composition for coating steel cords and rubber product using the same A rubber composition for coating steel cords, comprising a raw material rubber and, compounded therein, a methylolmelamine derivative and a product of a reaction of a cobalt salt of an organic acid with a metaboric acid ester, and a rubber product reinfor... | 10/12/1993 |
| 5250334 | Coffee web A laminate, suitable for packaging coffee, is disclosed. It consists of a) a base film of biaxially oriented polyester film or biaxially oriented nylon film, b) a gas barrier layer of aluminum and c) an oriented linear low density polyethylene film. The p... | 10/05/1993 |
| 5250356 | Cookware coating system Metal cookware coated with a multilayer system including a primer with more Al2 O3 and a blend of PTFE and PFA or FEP, a midcoat with less Al2 O3, and a topcoat with PTFE, and processes for preparing such coatin... | 10/05/1993 |
| 5246783 | Electrical devices comprising polymeric insulating or semiconducting members Disclosed are electrically conductive and semiconductive devices utilizing polymers having resistance to water treeing and good dielectric properties. The polymer comprises ethylene polymerized with at least one C3 to C20 alpha-olefi... | 09/21/1993 |
| 5244730 | Plasma deposition of fluorocarbon Polymeric fluorocarbon layer is prepared by plasma enhanced chemical vapor deposition in a chamber, the walls of which are coated with a polymeric fluorocarbon film by introducing a gaseous polymerizable fluorocarbon into the chamber and applying radio-fr... | 09/14/1993 |
| 5244741 | Developing roller of monocomponent developing system A developing roller of monocomponent developing system, in which a low hygroscopic material is used for a dielectric layer, thereby suppressing a change of electric properties of the layer caused by water absorption, that is, a dielectric layer using a lo... | 09/14/1993 |
| 5242755 | High temperature adhesive A substrate assembly and method for its preparation, said substrate assem comprising at least two substrates adhesively bonded with a cured thermosetting polymer being able to withstand a temperature of 200°-400° C. which polymer is derived from a ... | 09/07/1993 |
| 5240775 | Non-stick coating system with PTFE-PFA for concentration gradient Improved non-stick coating systems can be applied to untreated smooth substrate with a primer of polytetrafluoroethylene and a perfluorinated copolymer of tetrafluoroethylene and perfluoro vinyl ether to give a concentration gradient.... | 08/31/1993 |
| 5240776 | Corrosion resistant reflective articles A reflective article includes a glass substrate and a reflective metal coating deposited on the glass substrate including a reflective layer of silver and having a surface stratum which has a population of tin atoms which is augmented as compared with the... | 08/31/1993 |
| 5240760 | Polysiloxane treated roofing granules Roofing granules having surfaces treated with a polysiloxane that has a long-chain hydrocarbon group bonded to a silicon atom on the polysiloxane backbone wherein the long-chain hydrocarbon group preferably is a straight or branched aliphatic group having... | 08/31/1993 |
| 5238746 | Fluorocarbon-based polymer lamination coating film and method of manufacturing the same A substrate such as metal, ceramic, plastic, and glass material having a fluorine-based coating film having strong adhesion to a surface of the substrate wherein the substrate material comprises a monomolecular or polymer adsorption film formed on a base ... | 08/24/1993 |
| 5238748 | Polyimide and fluoropolymer containing films and laminates A multi-layer film of improved adhesive strength and other properties is made by combining a layer of polyimide and one or more layers of fluoropolymer selected from the group consisting of PTFE, thermally compatible TFE copolymers, blends thereof, PVF | 08/24/1993 |
| 5234771 | Permanent magnet having high corrosion resistance A sintered or bonded permanent magnet formed from a material consisting mainly of iron, particularly a Nd-Fe-B alloy, and having a high corrosion resistance has a surface coated with a resin obtained by the polycondensation of tannic acid, phenols and ald... | 08/10/1993 |
| 5234760 | Composite material comprising a substrate and a polymeric based coating and process for the manufacture thereof A composite material comprising a substrate which is not or very slightly excitable by microwaves and a coating on at least a portion of said substrate based on polymeric composition containing at least 50% by weight of a polymer excitable by microwaves, ... | 08/10/1993 |
| 5232786 | Multi-layer structures containing polyketone polymers A coextruded multi-layer structure may be formed by coextruding a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon (a polyketone polymer) with an other thermoplastic polymer, without the use of an adhesi... | 08/03/1993 |
| 5230954 | Fire-protection and safety composite glass panel A fire protective glass panel for use in a fire protective window, door, and partition wall, which comprises at least one sheet of fireproof glass plate and a fluorocarbone resin film of a chain molecular structure type bonded to a side surface of the gla... | 07/27/1993 |
