Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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 |
| 7255970 | Photoresist composition for imaging thick films The present invention provides for a light-sensitive photoresist composition useful for imaging thick films, comprising a polymer which is insoluble in an aqueous alkali developer but becomes soluble prior to development, a photoacid generator which produces a stron... | 08/14/2007 |
| 7182028 | System and method for the pyrolization of waste A system for the pyrolization of waste has a combustion chamber with a fuel inlet and a hot gas outlet, a pyrolization chamber separated from the combustion chamber, and a conveyor means positioned within the pyrolization chamber for moving waste from the waste inle... | 02/27/2007 |
| 7147681 | Method and device for removing recoverable waste products and non-recoverable waste products Method and apparatus used in the field of waste management for utilizing recoverable waste products as efficiently as possible. The invention reduces the environmental impact of such a method to a minimum. The recoverable waste products and non-recoverable waste pro... | 12/12/2006 |
| 6972085 | Continuous coking refinery methods and apparatus A system for refining hydrocarbon containing materials in a continuous coking mode may provide a pyrolyzer (1) which may be inclined to effect a liquid seal between a liquid conduction environment (6) and a gaseous conduction environment (7). A ... | 12/06/2005 |
| 6942707 | Valorization of by-products in the ecological coal transformation A coal transformation system comprises an ecological coal production unit for transforming raw coal into ecological coal. The production unit has an exhaust for carrying in a storage unit combustible, gaseous, waste by-products generated during the transformation of... | 09/13/2005 |
| 6746497 | Waste incineration disposal method A waste is dry-distilled in a gasification furnace and generated combustible gas is combusted in a combustion furnace. A temperature in the combustion furnace is set to be substantially constant at a first preset temperature or more. When the temperature in the comb... | 06/08/2004 |
| 6365038 | Method of producing combustible products from heavy fuel residue Asphaltene and oil shale are pyrolyzed at substantially atmospheric pressure for producing combustible products and carbonaceous material. A combustor combusts the carbonaceous material and produces flue gases which are supplied to a utilization device, a... | 04/02/2002 |
| 6206941 | Apparatus and process for carbonization and activation of carbonaceous materials An apparatus for converting carbonaceous raw materials into a carbonized product and activating the product, includes a device for heating the carbonaceous raw materials to form a carbonized product, and equipment for activating the carbonized product and... | 03/27/2001 |
| 6168688 | Method and plant for treating solid waste products by thermolysis A method and apparatus is provided for the thermolysis of solid waste within an enclosed thermolysis chamber in the absence of free oxygen which produces a thermolysis off-gas. The thermolysis off-gas is removed from the thermolysis chamber and injected i... | 01/02/2001 |
| 6005149 | Method and apparatus for processing organic materials to produce chemical gases and carbon char The invention provides a practical and efficient method and apparatus for thermally processing organic based raw materials of either primary or secondary (recycled) origin, in order to extract volatile organic vapors and to selectively produce either cond... | 12/21/1999 |
| 5928476 | Nonrecovery coke oven door A coke oven door for closing the open end of an elongated coking chamber of a nonrecovery coke oven, including process air vents extending through the door at a level above a coal charge to be coked, has a structural frame on its outer surface including a... | 07/27/1999 |
| 5770017 | Method for ablative heat transfer A method and apparatus for rapid heat transfer using surface-to-surface heat transfer of a solid or semi-solid feedstock against an inner surface of a containment vessel. The vessel is torus or helically shaped so that a feedstock (and products) can be co... | 06/23/1998 |
| 5670024 | Thermal treatment process for waste and/or residual materials For thermally treating waste and/or residual materials, in particular fiber glass, glass silk, glass wool and glass mat coated with organic materials, a drum (1) with embedded elements is used to make the materials circulate. In this drum the materials ar... | 09/23/1997 |
| 5632863 | Battery pyrolysis process Used batteries and other material for reclamation and recovery or environmentally safe disposal are transferred from a feed bin by an auger into a crusher and then into a pyrolysis chamber. The feed system excludes air or oxygen from passing through the a... | 05/27/1997 |
| 5584970 | Process of producing wood charcoal in a moving bed The biomass, particularly lump wood, is supplied to a shaft reactor at its top and is initially preheated to temperatures of about 150° to 280° C. and dried by a counterflowing hot gas. This is followed by a treatment in an underlying carbonizing zone, ... | 12/17/1996 |
| 5505822 | Process and device for treating waste by direct contact A process for treating industrial and/or urban waste includes the steps of drying the waste; effecting thermolysis of the dried waste by direct contact with warm gases, and washing solids resulting from the thermolysis with water to effect dechlorination ... | 04/09/1996 |
| 5449439 | Superheated low-pollution combustion of the gaseous products of pyrolysis, particularly in multiple small bulbous burner cups Combustible off-gas(es) produced by the process of pyrolysis are superheated; and a pressurized gaseous mixture including oxygen, normally compressed air, is preheated; before, and by, a burning of the combustible off-gas(es) produced by process of pyroly... | 09/12/1995 |
| 5435983 | Process for charcoal production from woody and herbaceous plant material An improved batch process for the pyrolytic conversion of woody and herbaceous plant material is provided which yields charcoal, on a dry weight basis, in yields ranging from about 35% to about 50%, having volatile matter content of about 25% or less, and... | 07/25/1995 |
| 5426259 | Method for oil-extracting treatment of wastes In a method for oil-extracting treatment of wastes for extracting oil by heating wastes contained in a waste containing chamber in a manner to be shut off from air, an inert gas is injected into the waste containing chamber after termination of thermal de... | 06/20/1995 |
| 5401364 | Process for treating noncaking, noncoking coal to form char with process derived gaseous fuel having a variably controllable calorific heating value According to this invention there is provided a process for the heat treatment of noncaking, noncoking coal with a process derived gaseous fuel having a variably controllable calorific heating value.... | 03/28/1995 |
| 5368723 | Method of and apparatus of producing low boiling point hydrocarbon oil from waste plastics or waste rubbers Waste plastics are heated so as to be thermally decomposed and produce a vapor product containing oil and gas components. The vapor product is brought into contact with a solid acid catalyst containing a hydrochloric acid as a decomposing activator to be ... | 11/29/1994 |
| 5318671 | Method of operation of nonrecovery coke oven battery A method of controlling operation of a nonrecovery coke oven battery including a plurality of elongated coke ovens constructed in side-by-side relation with each oven having a separate system of sole flues beneath each end connected to the crown of the ov... | 06/07/1994 |
| 5302254 | Process and plant for the thermolysis of industrial and/or urban waste A plant for treating industrial and/or urban waste includes a stage for drying of the waste, followed by a stage for effecting thermolysis of the dried waste and a stage for effecting recovery of the solids and gases resulting from the thermolysis. Thermo... | 04/12/1994 |
| 5279712 | Process and apparatus for the pyrolysis of carbonaceous material A process for the pyrolysis of carbonation materials such as wood which comprises directly or indirectly heating the carbonaceous material with flue gases. When carbonization commences the direct heating is stopped while indirect heating continues until c... | 01/18/1994 |
| 5224432 | Method for retorting organic matter A method of retorting organic matter including the steps of advancing the organic matter through a chamber in the absence of oxygen, sensing the temperature in the chamber at a plurality of locations along the length of the chamber, individually adjusting... | 07/06/1993 |
| 5173921 | Apparatus and process for activation of carbon by electrical resistance heating in the presence of steam In an apparatus and process for the activation of carbon from carbon feedstocks by electrical resistance heating in the presence of steam, which comprises preheating particles of the carbon feedstock in a preheater, having the particles descend by gravity... | 12/22/1992 |
| 5114542 | Nonrecovery coke oven battery and method of operation A sole flue nonrecovery coking oven battery includes a plurality of elongated coking ovens constructed in side-by-side relation with common sidewalls downcomers connecting the ovens through the sidewalls to the sole flues, uptakes connecting the sole flue... | 05/19/1992 |
| 5089457 | Process for activation of carbon by electrical resistance heating in the presence of steam In an apparatus and process for the activation of carbon from carbon feedstocks by electrical resistance heating in the presence of steam, which comprises preheating particles of the carbon feedstock in a preheater, having the particles descend by gravity... | 02/18/1992 |
| 5087328 | Method and apparatus for removing filling gases from coke ovens A gas jumper arrangement for a coke oven is composed of adjacently arranged coke oven chambers each having a gas opening with rims at the top portion thereof. The gas jumper arrangement overlaps gas openings of two adjacent coke oven chambers by one lid c... | 02/11/1992 |
| 4997527 | Coke handling and dry quenching method An improved coke handling and quenching method utilizes a coke box for receiving, cooling and carrying a coke charge from a coke oven in a pollution-free manner and employs a highly maneuverable self-propelled carrier vehicle for transporting and maneuver... | 03/05/1991 |
| 4960499 | Coke oven hood apparatus A pollution control system for capturing and incinerating the emissions to the atmosphere which arise when incandescent coke is pushed from a coke oven, includes a hood for capturing the emissions and a stack mounted on top of the hood for incinerating th... | 10/02/1990 |
| 4935099 | Process for making wood charcoal Lump wood is carbonized in a shaft retort, which is flown through by hot rinse gas. The wood is charged to the retort at its top. Wood charcoal is withdrawn from the lower portion of the retort. An exhaust gas which contains gases and vapors produced by c... | 06/19/1990 |
| 4857105 | Process for producing pig iron using coal degassing reactor to form reductants A novel process for producing molten pig iron or steel raw material is described. The pig iron is initially at least partly reduced to sponge iron by means of a reducing gas and is then melted in a melting gasifier, being optionally finally reduced. Apart... | 08/15/1989 |
| 4700639 | Utilization of low grade fuels There is provided a process and reaction system for the highly efficient utilization of solid fuels with a low content of organic matter, which may have a high sulfur content and a high mineral carbonate content. Carbonate decomposition is minimized and m... | 10/20/1987 |
| 4650546 | Method for the treatment of moist products Slugs (4) of products dehydrated by compression are thrust into the tube (11) up to the hearth (15). The hot gases from the hearth passing round the tube (11) heat it up in order to release the gases and carbonize the solids which burn in the form of coke... | 03/17/1987 |
| 4637795 | Method and apparatus for calcining material containing volatile constituents Bulk materials containing volatile constituents are calcined in a two-stage process comprising a first heating stage at de-volatilizing temperature but below calcining temperature during which the material is turned over and mixed to accelerate its bulk h... | 01/20/1987 |
| 4476789 | Method of and apparatus for the production of charcoal The present invention provides a charcoal producing apparatus comprising a combustion chamber, a heating chamber, first passage means interconnecting the combustion chamber and a discharge flue and second passage means interconnecting the heating chamber ... | 10/16/1984 |
| 4398476 | Method for incinerating sewage sludge A method and an apparatus of incinerating dewatered sludge without using an auxiliary fuel comprising pelletizing the partially dewatered sludge having a water content of 70 to 75%, drying the pellets with a heat source obtained by burning gases formed by... | 08/16/1983 |
| 4396487 | Process for retorting oil shale and the like The production of oil by retorting shale and other hydrocarbonaceous and lignocellulosic solid materials is facilitated by retorting in the presence of steam and acetic acid.... | 08/02/1983 |
| 4357210 | Electric furnace for the calcination of carbonaceous materials The invention relates to an electric furnace for heating by passing a current through the charge, and more particularly, a continuous furnace in which the charge is a carbonaceous material. The furnace according to the invention is provided with a device for ... | 11/02/1982 |
