Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 8066967 | System and method for the manipulation, classification sorting, purification, placement, and alignment of nano fibers using electrostatic forces and electrographic techniques A system and method for the manipulation of nanofibers using electrostatic forces. The nanofibers may be provided in a liquid medium, and the nanofibers may be nano-scale (i.e. measured in nanometers). The process is sensitive to the charge properties of the nanofib... | 11/29/2011 |
| 7883685 | Complexes of carbon nanotubes and fullerenes with molecular-clips and use thereof Separation of carbon nanotubes or fullerenes according to diameter through non-covalent pi-pi interaction with molecular clips is provided. Molecular clips are prepared by Diels-Alder reaction of polyacenes with a variety of dienophiles. The pi-pi complexes of carbo... | 02/08/2011 |
| 7803346 | Method of selecting structure of carbon nanotube through photoirradiation A method for selectively obtaining carbon nanotubes having specific structures by selectively obtaining carbon nanotubes having structures different from the structures of the carbon nanotubes to be vanished by irradiating carbon nanotubes with a light beam of singl... | 09/28/2010 |
| 7767187 | Method and apparatus for separating carbon product from used tire with microwave An apparatus for separating carbon products from used tires includes a decomposing chamber into which used tires are charged, a nitrogen gas supply device that supplies nitrogen gas into the decomposing chamber, one or more magnetrons that generate microwave of pred... | 08/03/2010 |
| 7670583 | Multi-step purification of single-wall carbon nanotubes The present invention relates to processes for the purification of single-wall carbon nanotubes (SWNTs). Known methods of single-wall carbon nanotube production result in a single-wall carbon nanotube product that contains single-wall carbon nanotubes in addition to... | 03/02/2010 |
| 7604790 | Method of removing carbonaceous impurities in carbon nanotubes A method of selectively removing carbonaceous impurities from carbon nanotubes (CNTs). In an example method, impurities formed on the surface of the CNTs may be removed by a sulfidation reaction between the impurities and sulfur in a sealed space. More specifically,... | 10/20/2009 |
| 7566434 | Spheroidal aggregates comprising single-wall carbon nanotubes and method for making the same A method for separating single-wall carbon nanotubes from an aqueous slurry comprises adding a water-immiscible organic solvent to an aqueous slurry comprising single-wall carbon nanotubes, isolating at least some of the single-wall carbon nanotubes in the solvent, ... | 07/28/2009 |
| 7494639 | Purification of carbon nanotubes based on the chemistry of fenton's reagent The present invention is directed to methods of purifying carbon nanotubes (CNTs). In general, such methods comprise the following steps: (a) preparing an aqueous slurry of impure CNT material; (b) establishing a source of Fe2+ ions in the slurry to provi... | 02/24/2009 |
| 7374685 | Process for separating metallic from semiconducting single-walled carbon nanotubes A method for separating semiconducting single-walled carbon nanotubes from metallic single-walled carbon nanotubes is disclosed. The method utilizes separation agents that preferentially associate with semiconducting nanotubes due to the electrical nature of the nan... | 05/20/2008 |
| 7357907 | Method for producing single walled carbon nanotubes A catalyst composition and method of use of the catalyst composition for producing single-walled carbon nanotubes (SWNTs). The catalyst is cobalt (Co) and molybdenum (Mo) on a silica support. The Mo occurs primarily as dispersed Mo oxide clusters on the support whil... | 04/15/2008 |
| 7357906 | Method for fractionating single-wall carbon nanotubes The invention relates generally to dispersing and fractionating single-wall carbon nanotubes, which can be derivatized to facilitate fractionation, for example, by adding solubilizing moieties to the nanotubes. ... | 04/15/2008 |
| 7354563 | Method for purification of as-produced fullerene nanotubes This invention relates generally to a fullerene nanotube purification process and more particularly to a purification process that comprises heating the fullerene nanotube-containing felt under oxidizing conditions to remove the amorphous carbon deposits and other c... | 04/08/2008 |
| 7347981 | Directed flow method and system for bulk separation of single-walled tubular fullerenes based on helicity A method for bulk separation of single-walled tubular fullerenes (100) based on helicity is provided wherein a solution or suspension of the single-walled tubular fullerenes (100) is flowed onto a crystalline or highly oriented substrate (30). T... | 03/25/2008 |
| 7347982 | Apparatus and method for recovering carbon black from pyrolysis byproducts A system (10), process and apparatus are disclosed for purifying carbon black (15) containing sulfur and metal oxide impurities by digesting (20) the impure carbon black in an acid to extract the metal oxide (25). Sulfur (45) is th... | 03/25/2008 |
| 7305066 | X-ray generating equipment An X-ray generating apparatus for generating X-rays by irradiating a target with an electron beam. Wherein the apparatus includes a vibration applying means for vibrating the target in directions parallel to a surface thereof. A colliding spot of the electron beam i... | 12/04/2007 |
| 7294314 | Heat exchangers with novel ball joints and assemblies and processes using such heat exchangers What is disclosed herein deals with low to medium pressure, high temperature, all ceramic, air-to-air, indirect heat exchangers, novel ball joints, high load-bearing ceramic tube sheets, and tube seal extenders for ceramic tubes that are useful in such heat exchange... | 11/13/2007 |
| 7261779 | System, method, and apparatus for continuous synthesis of single-walled carbon nanotubes A process for producing single-walled carbon nanotubes in a continuous manner includes carbon plasma generation, plasma stabilization, and product deposition. The plasma is generated by electrical resistance heating or electron beam vaporization of feedstock. The pl... | 08/28/2007 |
| 7261871 | Fabrication of carbon nanotube films from alkyne-transition metal complexes A simple method for the production or synthesis of carbon nanotubes as free-standing films or nanotube mats by the thermal decomposition of transition metal complexed alkynes with aryl, alkyl, alkenyl, or alkynyl substituents. In particular, transition metal (e.g. C... | 08/28/2007 |
| 7255743 | Method of making synthetic gems comprising elements recovered from remains of a species of the kingdom animalia This invention is a method of making a synthetic gem comprising elements recovered from remains of a species of the Kingdom Animalia, comprising the steps of collecting substantially pure carbon from the remains and creating gems from the carbon using crystal growth... | 08/14/2007 |
| 7226818 | High performance field effect transistors comprising carbon nanotubes fabricated using solution based processing The present invention is directed toward field effect transistors (FETs) and thin film transistors (TFTs) comprising carbon nanotubes (CNTs) and to methods of making such devices using solution-based processing techniques, wherein the CNTs within such devices have b... | 06/05/2007 |
| 7220697 | Mesoporous carbon molecular sieve and supported catalyst employing the same The present invention is related to a mesoporous carbon molecular sieve, which can be used as a catalyst carrier capable of improving the activity of a supported catalyst and a method of preparing the same. Additionally, the invention is related to a supported catal... | 05/22/2007 |
| 7208132 | Purification of endohedral and other fullerenes by chemical methods The invention provides a method of separating a first and a second set of fullerenes in a fullerene mixture. In the method of the invention, a stable fullerene cation is formed of one of the first or the second set of fullerenes. The fullerene cation is then separat... | 04/24/2007 |
| 7186357 | High swelling ramming paste for aluminum electrolysis cell A new ramming paste for aluminum reduction cell cathodes is a high swelling cold ramming paste made of a blend of pitch, light oil diluent and an aggregate comprising a mixture of anthracite and crushed anode butts or calcined coke. The presence of the crushed anode... | 03/06/2007 |
| 7166266 | Isolation and purification of single walled carbon nanotube structures Disclosed are methods for isolating and purifying single wall carbon nanotubes from contaminant matrix material, methods for forming arrays of substantially aligned nanotubes, and products and apparatus comprising a plurality of nanotube structures. ... | 01/23/2007 |
| 7156958 | Preparation of hollow carbon nanocapsules A method of producing hollow carbon nanocapsules. First, an arc chamber including a graphitic cathode and a graphitic anode is provided and an inert gas is introduced into the arc chamber. Next, a voltage is applied across the cathode and the anode by a pulse curren... | 01/02/2007 |
| 7153398 | Method for producing fullerene-containing carbon and device for carrying out said method The inventive method for producing fullerene-containing carbon and the device for carrying out said method relate to the chemical industry and are used for producing fullerenes. Said method for producing fullerene-containing carbon consists in vaporising graphite in... | 12/26/2006 |
| 7150865 | Method for selective enrichment of carbon nanotubes A method for treating carbon nanotubes with microwave energy to selective remove metallic-type carbon nanotubes is provided. A sample containing carbon nanotubes is positioned in a microwave cavity at a location corresponding to a maximum in the electric field compo... | 12/19/2006 |
| 7148285 | Coated carbon black pellets and methods of making same A method of producing coated carbon black pellets is disclosed and includes contacting carbon black pellets with a coating agent to at least partially coat the individual carbon black pellets with the coating agent. The amount of coating agent applied to the carbon ... | 12/12/2006 |
| 7147894 | Method for assembling nano objects A method for the self assembly of a macroscopic structure with a pre-formed nano object is provided. The method includes processing a nano object to a desired aspect ratio and chemical functionality and mixing the processed nano object with a solvent to form a suspe... | 12/12/2006 |
| 7141149 | Electrodes useful for molten salt electrolysis of aluminum oxide to aluminum The present invention provides a method of making a carbon electrode, suitable for use as an anode in an aluminum reduction cell, which comprises mixing an aggregate, comprising a mixture of particulate shot coke, and a particulate carbonaceous material other than s... | 11/28/2006 |
| 7135160 | Spheroidal aggregates comprising single-wall carbon nanotubes and method for making the same A method for separating single-wall carbon nanotubes from an aqueous slurry comprises adding a water-immiscible organic solvent to an aqueous slurry comprising single-wall carbon nanotubes, isolating at least some of the single-wall carbon nanotubes in the solvent, ... | 11/14/2006 |
| 7124764 | Method for removing impurities from porous materials The present invention discloses a method for removing impurities from a porous material by flowing a supercritical fluid with or without a modifier therein over a to-be-cleaned porous material having pores at the nanometer level under suitable temperatures and press... | 10/24/2006 |
| 7115864 | Method for purification of as-produced single-wall carbon nanotubes This invention relates generally to a single-wall carbon nanotube (SWNT) purification process and more particularly to a purification process that comprises heating the SWNT-containing felt under oxidizing conditions to remove the amorphous carbon deposits and other... | 10/03/2006 |
| 7094385 | Process for the mass production of multiwalled carbon nanotubes The present invention concerns a process for the mass production of carbon nanotubes and particularly a process for selectively producing multiwalled carbon nanotubes. ... | 08/22/2006 |
| 7090819 | Gas-phase process for purifying single-wall carbon nanotubes and compositions thereof The present invention relates to an all gas-phase process for the purification of single-wall carbon nanotubes and the purified single-wall carbon nanotube material. Known methods of single-wall carbon nanotube production result in a single-wall carbon nanotube prod... | 08/15/2006 |
| 7087207 | Method for forming an array of single-wall carbon nanotubes in an electric field and compositions thereof This invention relates generally to a forming an array of single-wall carbon nanotubes (SWNT) in an electric field and compositions thereof. In one embodiment, a purified bucky paper of single-wall carbon nanotubes is used as the starting material. Upon oxidative tr... | 08/08/2006 |
| 7067004 | Grout compositions having high thermal conductivities and methods of using the same Grout slurries are provided that have high thermal conductivities of greater than about 1.4 Btu/hr-ft-° F. and low hydraulic conductivities ranging from about 5×10−9 cm/s to about 1×10−8 cm/s. Such grout slurries comprise water and a grout composition that is... | 06/27/2006 |
| 7052666 | Method for cutting single-wall carbon nanotubes This invention relates generally to cutting single-wall carbon nanotubes (SWNT). In one embodiment, the present invention provides for preparations of homogemeous populations of short carbon nanotube molecules by cutting and annealing (reclosing) the nanotube pieces... | 05/30/2006 |
| 7037479 | Method for cleaning nanomorphic carbon species An exemplary method for substantially non-chemically-reactive separation of nanomorphic carbon species (140) comprises inter alia the steps of suspending a nanomorphic carbon sample (100) in an aqueous surfactant suspension (110), adding nanopar... | 05/02/2006 |
| 7029645 | Method for non-reactive separation of nanomorphic carbon species An exemplary method for substantially non-chemically-reactive separation of nanomorphic carbon species (150) comprises inter alia the steps of dissolving a crude nanomorphic carbon sample (100) in an organic solvent (110), centrifugation of the ... | 04/18/2006 |
