Famous Patents
The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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 |
| 6800150 | Manufacturing process for an element of a chemical device comprising a support part in metal and an anticorrosion metallic coating The aim of the present invention is a manufacturing process for assembly parts (101, 102, 111, 112) for the manufacture of elements of chemical devices (100), comprising the fixation of an anticorrosion metallic coating (31, 32) on an unprocesse... | 10/05/2004 |
| 6334898 | Crucible holder for pulling monocrystals A crucible holder made of a carbon material for use in crystal pulling operations and in the shape of a hollow receptacle. The holder includes at least two distinct and complementary parts that can be brought together by junction surfaces. When the parts ... | 01/01/2002 |
| 5969233 | Carbon current collecting shoe with damage detector for operation with a high current electrical power supply A current collecting shoe for transferring energy from a catenary wire to rolling stock, includes a sheath constructed and arranged for fixing to a pantograph carried by the rolling stock, a wearing strip including graphite mounted on the sheath, a longit... | 10/19/1999 |
| 5789842 | Alternator rings and cylindrical commutators made of a sintered copper-graphite composite material The invention relates to a rotating element of an electrical machine, rotating electrical contact parts and electrical machines containing these devices.... | 08/04/1998 |
| 5728368 | Chemical heat pump reactor with improved power A reactor for a chemical heat pump including a sealed container provided with a heating and cooling system and having an inside wall, and a solid reagent having an outer surface and disposed in the container, which solid reagent reacts reversibly with a r... | 03/17/1998 |
| 5705262 | Surface treatment of carbonaceous material for making a subsequent deposit of diamond adherent and diamond-covered pieces obtained The surface treatment of carbonaceous material (1) is characterised in that a layer of SiC (2) is formed on the carbonaceous material (1) by thermochemical conversion of the carbonaceous material (1) by a precursor of Si (4) at a temperature which is high... | 01/06/1998 |
| 5701046 | Process for the production of multi-layered brushes and brushes obtained by the process The process comprising the charging into a mould (3) of at least one electrically conductive powder (4), the compression by means of a piston (5) of the contents of the mould to form a crude brush (7), the heat treatment of said crude brush (7) as well as... | 12/23/1997 |
| 5643663 | Carbon-carbon composite friction material with divided porosity A carbon-carbon composite material formed from a fibrous substrate and a matrix. The fibrous substrate has a carbon fiber base which acts as a reinforcement, a coarse texture and large sized cavities. The matrix includes pyrocarbon layers coating the fibr... | 07/01/1997 |
| 5609815 | Process for fast manufacturing of carbonaceous products A process for manufacturing carbonaceous parts including the steps of shaping a mixture of carbonaceous powder and bonding agent to form raw parts, cooling the raw parts to ambient temperature at a known rate and firing the cooled parts in a furnace from ... | 03/11/1997 |
| 5605772 | Composite carbon/polymer electrode for a rechargeable electrochemical lithium cell A composite carbon/polymer electrode for a rechargeable electrochemical lithium cell comprises a powder of carbonaceous material and a coating polymer rendered ionically conductive by the addition of a lithium salt, and possibly carbon black or carbon fib... | 02/25/1997 |
| 5601316 | Bellows for connecting hoses or apparatus for operation in a vacuum A bellows for connecting hoses or apparatus operating in a partial vacuum including a corrugated tube reinforced on the outside by rings at the troughs of the corrugations. The tube further includes toric reinforcing rings on the inside of the crests of t... | 02/11/1997 |
| 5554348 | Diffuser elements facilitating the mass transfer in solid/gas reactions Diffuser elements are provided to facilitate mass transfer in endothermic or exothermic solid/gas reactions between a reactive gas and a reactive composite material and are implanted in the reactive composite material to facilitate the diffusion of the re... | 09/10/1996 |
| 5543021 | Negative electrode based on pre-lithiated carbonaceous material for a rechargeable electrochemical lithium generator The subject of the present invention is an electrode based on carbonaceous material for rechargeable electrochemical lithium generators. The carbonaceous material is a pitch coke with a mosaic texture subjected to a pre-lithiation treatment before the pro... | 08/06/1996 |
| 5501582 | Magnetically driven centrifugal pump A magnetically drive centrifugal pump comprises a fixed assembly formed by a pump barrel made of a carbonaceous material, rigid annular bearings and a non-magnetic, non-electrically conductive sealing shell, and a rotating assembly formed by an impeller m... | 03/26/1996 |
| 5441683 | Simplified process for the production of carbon motor brushes A process for producing a brush for an electric motor having predetermined final dimensions and including a wearing block and a connecting braid. The brush is produced by preparing at least one mixture including a conductive graphite powder in the form of... | 08/15/1995 |
| 5409086 | Fitting brake lining with studs The lining (1) includes by studs (2) mounted on a support (3), each being rigid with the support by reason of a mounting element and is characterized in that a) the mounting element (5) consists of a base (9) with a flange (13) with no axial symmetry, b) ... | 04/25/1995 |
| 5362468 | Process for the pyrolysis of fluid effluents and corresponding apparatus The pyrolysis process for fluid effluents in an enclosure, where they are transformed into solid and gaseous products is characterized in that the said effluents are heated on contact with solid elements, on traversing a pile of said solid elements offeri... | 11/08/1994 |
| 5242746 | Friction elements of composite carbon-carbon material and of differential texture A multi-layer friction element is disclosed consisting of carbon-carbon composite material comprising a structure layer of so-called "coarse" texture comprising segments of rovings and at least one friction layer of so-called "fine" texture comprising fib... | 09/07/1993 |
| 5238568 | Porous carbon-carbon composite filtering membrane support with a carbon fibre mat substrate A membrane support usable for separative procedures is disclosed. The support is a mechanically solid composite carbon-carbon material of limited thickness in the passage direction Z of a flow to be treated, which composite has a porous texture appropriat... | 08/24/1993 |
| 5191955 | Multi-stud brake fitting A brake fitting comprising a plurality of studs separated from each other by spaces, each stud made of a sintered friction product laterally sheathed by a less fragile sintered metal bead which extends into the spaces between the studs. The fitting furthe... | 03/09/1993 |
| 5190654 | Process for producing an ultra-thin and asymmetric mineral membrane Disclosed is a process for producing a mineral membrane on a mineral support, involving the production of a dispersion of a filler and a resin, depositing this dispersion onto a support so as to form a layer, followed by the thermal treatment of the suppo... | 03/02/1993 |
| 5180459 | Process for producing sealing components from all-carbon composite material Process for producing carbon composite components having an edge and a central part with at least one layer of carbon/carbon composite and at least one layer of recompressed expanded graphite to obtain a sealing carbon composite component with a central p... | 01/19/1993 |
| 5176230 | Carbon friction strip with a damage detection facility The invention relates to a friction strip serving for the transfer of electrical energy to rolling stock and comprising a damage detection device. The friction strip consists of a wearing strip (2) of carbon based material comprising a groove (3) on its f... | 01/05/1993 |
| 5147552 | Method of and apparatus for cleaning filters in tangential microfiltration A method of and an apparatus for tangential filtration with filter cleaning in which a fluid to be filtered forms a liquid loop and circulates tangentially to one surface of a membrane at a pressure Ph in which a filtrate flows from the other surface of t... | 09/15/1992 |
| 5124118 | Method of manufacturing a brake lining comprising non-contiguous sheathed studs, and the lining obtained thereby A method for manufacturing a brake fitting comprising a plurality of studs each surrounded by a less fragile belt, the studs being non-contiguously secured to a metal support. According to the method, the support is provided with a slip-resistant surface ... | 06/23/1992 |
| 5114762 | Process for manufacturing composite tubes Process for manufacturing tubes of a composite material from a preimpregnated fibrous reinforcing sheet whose width is split into a strip portion and a casing portion, where the thickness of the sheet is slit in the casing portion. A mandrel is inserted i... | 05/19/1992 |
| 5100737 | Multi-layer material comprising flexible graphite which is reinforced mechanically, electrically and thermally by a metal and a process for the production thereof A multi-layer material comprises at least two layers of flexible material, including one layer based on electrically conductive, expanded recompressed graphite and another layer based on a metal, wherein the layer of graphite has at least one face thereof... | 03/31/1992 |
| 4944996 | Separating element The invention relates to a support intended to receive a mineral membrane for separation procedures, and processes for the production thereof. The support is formed by a carbon-carbon composite material of small thickness, which is mechanically strong and... | 07/31/1990 |
| 4865739 | Process for producing a porous mineral membrane on a mineral support The invention relates to a process for preparing mineral and in particular, carbon-containing membranes on a porous mineral support. According to the process, at least one layer of a stable emulsion of mineral particles in a solution containing a thermose... | 09/12/1989 |
| 4852645 | Thermal transfer layer The invention concerns a thermal transfer layer with high transfer coefficient between two materials which can have different expansion coefficients. The thermal transfer layer comprises expanded graphite inserted between the materials which are selected ... | 08/01/1989 |
| 4847883 | Support for rotary target of x-ray tubes The present invention concerns a support of carbonaceous material for a rotary target of X-ray tubes. The support is formed of two parts which are fixed with respect to each other, one part being of a carbon/carbon composite which provides mechanical stre... | 07/11/1989 |
| 4496621 | Reinforced impregnated graphite structures and process for making same Disclosed are graphite articles impregnated with resin and having on at least a part of their surface a reinforcement of resin-impregnated fibers wherein the resin serves to integrally unite the graphite with the reinforcement. The articles are made by pl... | 01/29/1985 |
