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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7309395 | System for forming composite polymer dielectric film A system for depositing a composite polymer dielectric film on a substrate is disclosed, wherein the composite polymer dielectric film includes a low dielectric constant polymer layer disposed between a first silane-containing layer and a second silane-containing la... | 12/18/2007 |
| 7244401 | Apparatus for separation of constituents from matrices The present invention provides an apparatus useful for the separation of hazardous and non-hazardous organic and inorganic constituents from various matrices. A method of separating such constituents is also provided. ... | 07/17/2007 |
| 7205152 | Closed loop system and method for air sampling of mail products A self-contained closed loop system and method for detecting contaminants in, on, and around objects. The system includes an air duct subsystem connecting at least one sensor to a sealed housing containing a rotating container. Air from the sealed housing is circula... | 04/17/2007 |
| 7194924 | System and method for biohazard detection using compression The present invention includes a system and method for detecting contaminated objects, for example mail pieces, through use of a pinching device that compresses the objects, thereby possibly releasing potential contaminant-containing particles into the air in a clos... | 03/27/2007 |
| 7147034 | Reclamation treatment of bonded particulates Apparatus for use in reclaiming particulate material from bonded particulate material comprises an outer compartment arranged substantially concentrically about an inner compartment, means in one compartment for breaking up the bonded particulate material and means ... | 12/12/2006 |
| 7047892 | Mobile furnace and method of facilitating removal of material from workpieces A method for removing foreign material such as paints and coatings from workpieces using a mobile furnace. The workpieces are flash heated so that only the surface is heated to remove the coatings without heating the core of the workpieces. Deformation of the workpi... | 05/23/2006 |
| 7044287 | Conveyor belt washer A conveyor belt washer for cleaning a moving conveyor belt with a pressurized fluid. The conveyor belt washer includes a washtank, a spray assembly located within the washtank and having at least one spray head rotatably mounted with respect to the tank, and at leas... | 05/16/2006 |
| 7028623 | Treatment of carbonaceous material A process for the treatment of organic matter, comprises the steps of preliminary microwave irradiation in an oxygen-depleted atmosphere to give a black ash-like residue, followed by combustion of the residue to give a white ash. Hence the emissions of carcinogens s... | 04/18/2006 |
| 7019190 | Soil remediation system A process and apparatus for energy efficient remediation of soil contaminated with hydrocarbons, including desorbing the hydrocarbon contaminants from a bed of the soil by thermal desorption in a treated desorption chamber (20) and thereafter combusting the c... | 03/28/2006 |
| 6932003 | Mobile furnace and method of facilitating removal of material from workpieces A method for removing foreign material such as paints and coatings from workpieces using a mobile furnace. The workpieces are flash heated so that only the surface is heated to remove the coatings without heating the core of the workpieces. Deformation of the workpi... | 08/23/2005 |
| 6923189 | Cleaning of CVD chambers using remote source with cxfyoz based chemistry A method and apparatus for cleaning a processing chamber are provided. The cleaning method includes the use of a remote plasma source to generate reactive species and an in situ RF power to generate or regenerate reactive species. The reactive species are generated ... | 08/02/2005 |
| 6830001 | Pyrolysis furnace having improved heating efficiency A batch type pyrolysis furnace is described for the removal of organic contaminants from various metal parts with superior heating efficiency. The described pyrolysis furnace employs a modified gas burner construction providing combined radiant and convection heatin... | 12/14/2004 |
| 6815572 | Method and device for incineration and vitrification of waste, in particular radioactive waste The present invention provides a method of processing organic waste (D) in divided solid and/or liquid form, the method being implemented in a single reactor (1) containing a bath of molten glass (V) surmounted by a gas phase (G), the method comprising incine... | 11/09/2004 |
| 6748881 | Continuous pyrolysis furnace A pyrolysis furnace is described enabling removal of solid and liquid organic contaminants from various metal parts in a continuous manner. A novel furnace contruction employing a rotating retort vessel is described together with its method of continuous operation. | 06/15/2004 |
| 6632287 | Method for decontaminating a hollow needle The invention provides a method and device for decontaminating a contaminated hollow metal needle having electrical wires attached to the needle which heat cleaning fluid dispensed into the needle.... | 10/14/2003 |
| 6570049 | Incineration system for refuse-derived fuels, coal and petroleum coke, or chlorinated hydrocarbons Incineration systems, particularly those using municipal garbage and waste, refuse-derived fuels, coal and petroleum coke, and/or chlorinated hydrocarbons are operated without the release of toxic pollutants such as dioxins. One preferred embodiment relat... | 05/27/2003 |
| 6520097 | Method of an apparatus for rapid in-line incinerating of contaminant coated hangers and/or parts using high energy sources Method and Apparatus for high intensity infrared burn-off of contaminants on articles moving continuously through an in-line production process.... | 02/18/2003 |
| 6474249 | Mobile furnace and method of facilitating removal of material from workpieces The mobile furnace for removing foreign material, such as coatings, from workpieces. The mobile furnace includes burners for heating a combustion chamber of the furnace, and a burner control for operating the burners. The furnace is mounted on a wheeled v... | 11/05/2002 |
| 6440746 | Method and apparatus for analyzing asphalt content An apparatus for pyrolysis of a bituminous paving mix is provided, comprising an oven having a bottom wall, a top wall, and side walls defining a combustion chamber, a sample support within the combustion chamber, an infrared heater mounted within the ove... | 08/27/2002 |
| 6325967 | Incineration process A process and apparatus for incinerating certain volatile organic compounds especially odorants commonly used in the natural gas industry. The procedure uses a first (car bottom) furnace as a heating chamber, where precise temperature control during both ... | 12/04/2001 |
| 6309542 | Waste water treating device A waste water treating device can be simply installed in a small area and destroy combustible wastes and sludge to reduce fuel consumption cost of a burner. Moreover, the waste water treating device can increase a treating amount of the waste water per un... | 10/30/2001 |
| 6298690 | Broken glass cleaning method and plant A large tumbling device into which broken pieces of labeled glass such as beverage bottles, or cullet, are fed. After entering the interior chamber of the tumbler, the cullet is carried by a plurality of interior fins along the inside circumference of the... | 10/09/2001 |
| 6296815 | Apparatus for exsitu thermal remediation An apparatus is disclosed for thermal desorption of contaminants from contaminated material, the apparatus including: a plurality of first insulated boxes, each insulated box, defining a volume effective for holding contaminated material, and each insulat... | 10/02/2001 |
| 6227847 | Apparatus and process for removing volatile coatings from scrap metal A system for removing volatile coatings from scrap aluminum, such as expended beverage cans, includes a kiln, a fan for generating an airstream, an afterburner for heating the airstream, and ducting for confining the airstream in a closed loop so that it ... | 05/08/2001 |
| 6146596 | Soil remediation apparatus with safeguard system The present invention is an improved apparatus and method for its use in the decontamination and remediation of soils laden with organic hydrocarbons and toxic inorganic compounds. The soil to be treated is placed in a soil treatment tray which is subsequ... | 11/14/2000 |
| 6135765 | Pyrocleaning furnace and thermal oxidizer system A Pyrocleaning Furnace and Thermal Oxidizer System which degreases metal components and comprises an oven, an oxidizer, a system gas supply means, a system gas exhaust means, and a first heat exchanger. The degreasing is accomplished by first transporting... | 10/24/2000 |
| 6131525 | Waste oil heating system for washers A system for cleaning oil containing vehicular components with heated cleaning liquid comprising a washing unit having at least one spray nozzle for directing the cleaning liquid to the vehicular component. The system of the present invention also include... | 10/17/2000 |
| 6110430 | Decontamination plant including an indirectly heated desorption system The present invention is a decontamination plant for removing contaminates from contaminated material. The decontamination plant comprises an outer shell including a cavity therein. A drum formed of heat conductive material is rotatably mounted in the cav... | 08/29/2000 |
| 6054323 | Method and apparatus for analyzing asphalt content An apparatus and method for assaying an asphalt-containing composite material by irradiating the sample using a radiation source having a tunable preselected wavelength selected to closely approximate the absorbance wavelength of a particular material or ... | 04/25/2000 |
| 6039927 | Valve system for regenerative thermal oxidizers A two chamber regenerative thermal oxidizer has a pair of poppet valves actuated by an eccentric mechanical drive assembly having a single drive shaft. Gas flow through the RTO is reversed by the simultaneous opening and closing of the poppet valves. Dece... | 03/21/2000 |
| 5965097 | Rotary device for catalytic cleaning of gaseous effluents The invention relates to a cleaning device wherein polluted effluents are passed into a cage (2) where a partitioned ring (1) of vertical axis, containing a charge (M) of a solid material exhibiting a large heat exchange surface and, against the inner wal... | 10/12/1999 |
| 5951275 | Method for removing oily substances from metallic articles Combustibles such as oily substances adhered to or impregnated in metallic articles are removed, before the articles are subjected to a heat-treatment for carburizing or sintering them, by heating them in a heating chamber with a combustion tube, and disc... | 09/14/1999 |
| 5944034 | Apparatus and method for recycling oil laden waste materials A system for treating oil laden used products, e.g., oil filters to achieve complete recycle of the products. The used products are heated in a primary combustion zone under reducing conditions to lower the viscosity of the oil for removal and to create o... | 08/31/1999 |
| 5868085 | Pyrolytic waste treatment system A system for pyrolysis of hydrocarbon constituents of waste material including a treatment unit featuring a retort with a ellipsoidal cross-section forming a first retort half and a second retort half, the material to be treated being selectively deposite... | 02/09/1999 |
| 5832844 | System for recycling used oil filters A recycling system processes used oil filters on a continuous basis by shredding the oil filters and then incinerating the shreds in a rotary kiln. The shreds are fed into the upper end of an inclined rotating drum kiln. The shreds of combustible material... | 11/10/1998 |
| 5826520 | Apparatus and process for high temperature cleaning of organic contaminants from fragile parts in a self-inerting atmosphere at below the temperature of combustion An apparatus and process are provided for non-combustion, high-temperature cleaning of organic contaminants from fragile parts which are resistant to heat below the temperature of combustion but which may not be resistant to burning or heat above the temp... | 10/27/1998 |
| 5819673 | Systems for the treatment of chemical wastes and methods for treating chemical wastes Improved methods for the treatment of liquid chemical compounds and process systems for practicing those methods are provided. The methods are practiced by spraying the liquid chemical compounds into a matrix bed of heat resistant materials at temperature... | 10/13/1998 |
| 5820836 | Rotating catalytic cleaning device for polluted effluents A process of cleaning a gas and a rotating catalytic gas cleaning device including a crown of vertical axis driven into rotation in a cage. The crown has an annular catalyst bed covering its inner wall and an annular thermal load, outside the catalytic be... | 10/13/1998 |
| 5765490 | Device for withdrawing and/or ejecting a contaminating medium, with decontamination of the member for manipulating said medium Process for heating a hollow needle (2) consisting essentially of a metal tube (3), the inside and/or outside of which have previously been brought into contact with a contaminating medium, according to which an electric current is supplied to the said ne... | 06/16/1998 |
| 5750822 | Processing of solid mixed waste containing radioactive and hazardous materials Apparatus for the continuous heating and melting of a solid mixed waste bearing radioactive and hazardous materials to form separate metallic, slag and gaseous phases for producing compact forms of the waste material to facilitate disposal includes a copp... | 05/12/1998 |
