Famous Patents
Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7368004 | Electric dust collector The electric dust collector has an oblong holding unit provided on the air channel of an air conditioner or the like; a high-voltage applying device provided at an end of the holding unit; a front-open contact protector of substantially inverted U-shape that contain... | 05/06/2008 |
| 7252701 | Method of cleaning electric filter and electric filter The invention relates to a method of cleaning an electric filter and to an electric filter. In the method gas containing particles is fed to a chamber (2) of the electric filter. The gas is further fed to gas channels (5) in an emission system (3 | 08/07/2007 |
| 7225997 | Distributor bottom for the distribution of a gas charged with fine solid particles A nozzle distributor base for distributing a gas which is laden with fine solids particles, preferably for use in a fluidized-bed unit, in particular for the reduction of metal oxide-containing solids particles. At least one movable cleaning device on the distributo... | 06/05/2007 |
| 7112236 | Multistage space-efficient electrostatic collector A multistage space-efficient electrostatic collector cleans a gas flowing therethrough along a gas flow path having a first stage provided by a first corona discharge zone along the gas flow path, and a second stage provided by a second corona discharge zone along t... | 09/26/2006 |
| 7083833 | Photoalignment materials and liquid crystal display fabricated with such photoalignment materials An aromatic polyamide photoalignment material prepared by a reaction from a diamine compound with a side branch and a photosensitive dicarboxylic acid. Furthermore, liquid crystal display devices using such photoalignment materials in an alignment film on at least o... | 08/01/2006 |
| 7068434 | Sheeting with composite image that floats Microlens sheetings with composite images are disclosed, in which the composite image floats above or below the sheeting, or both. The composite image may be two-dimensional or three-dimensional. Methods for providing such an imaged sheeting, including by the applic... | 06/27/2006 |
| 7049244 | Method for enhancing silicon dioxide to silicon nitride selectivity A process for controlling the plasma etch of a silicon dioxide layer at a high etch rate and high selectivity with respect to silicon nitride, particularly in a multilayer structure, by (1) maintaining various portions of the etch chamber at elevated temperatures, a... | 05/23/2006 |
| 6953556 | Air conditioner devices An air conditioner includes an ion generator that provides ions and safe amounts of ozone. The ion generator includes a high voltage generator that provides a voltage potential difference between first and second electrode arrays. At least one of the first and secon... | 10/11/2005 |
| 6951580 | Method for minimizing bowing of collector plates in an electrostatic precipitator, and a collector plate-clip combination A bow-reduced precipitator collector plate assembly and an appertaining method include a precipitator collector plate that contacts a spring-like stiffening element configured to be attached to a fixed anchor or an adjacent anchoring collector plate. The stiffening ... | 10/04/2005 |
| 6946005 | Pyrrolidinyl-substituted para-phenylenediamine derivatives substituted with a cationic radical, and use of these derivatives for dyeing keratin fibers Novel pyrrolidinyl-substituted para-phenylenediamine derivatives comprising a cationic radical, the dye compositions comprising them and the process for dyeing keratin fibers using these compositions, making it possible to obtain a chromatic, powerful, unselective a... | 09/20/2005 |
| 6911186 | Electro-kinetic air transporter and conditioner device with enhanced housing configuration and enhanced anti-microorganism capability An electro-kinetic air conditioner for removing particulates from the air creates an airflow using no moving parts. The airflow is subjected to UV radiation from a germicidal lamp within the device. The conditioner includes an ion generator that has an electrode ass... | 06/28/2005 |
| 6902604 | Electrostatic precipitator with internal power supply An electrostatic precipitator, including for a diesel engine electrostatic crankcase ventilation system for blowby gas, includes a corona discharge electrode assembly in a housing, an insulator extending along an internal surface of a wall of the housing, a power su... | 06/07/2005 |
| 5639359 | Electrostatic precipitator discharge rapper anvil An anvil arrangement for receiving rapper impacts and transmitting them to a discharge electrode of a precipitator has an electrode tube made of deformable material, having an open end and forming part of the discharge electrode. An anvil having a head an... | 06/17/1997 |
| 4526591 | Electrode rapping arrangement An electrode rapping arrangement for cleaning the collecting electrodes of a pair of serially aligned electrode assemblies in an electrostatic precipitator. The rapping arrangement includes a shaft extending horizontally across the interior of the precipi... | 07/02/1985 |
| 4519817 | Precipitator rapper A rapper for striking a target in a precipitator includes a hammer having a hub pivotally attached to a frame. The rapper also has a drive sprocket rotatably mounted in the frame. The sprocket has a driving plurality of spaced teeth distributed on the spr... | 05/28/1985 |
| 4363640 | Electrostatic precipitator impactor assembly An electrostatic precipitator having a collecting cell and an impactor assembly to remove contamination from the collecting plates within the collecting cell. The impactor assembly includes an elongated first member having a major portion of the mass ther... | 12/14/1982 |
| 4242114 | Dust collector A dust collector for cleaning particle-laden air by means of a plurality of filter bags through which the air is passed. The dust collector includes an inlet chamber adapted to receive particle-laden air and an outlet chamber for clean air. The filter bag... | 12/30/1980 |
| 4221573 | Electrostatic precipitator rapping mechanism An electrostatic precipitator rapping system of the type which lifts weights and then allows the weights to fall to impact on precipitator elements to impart particulate-dislodging vibration thereto. The system includes a rotating drive shaft and a plural... | 09/09/1980 |
| 4099940 | Impulse filter cleaner A resiliently supported filter support plate, with tubular filters depending therefrom, is provided with an overlying rock shaft carrying rocker arms having depending hammer heads arranged to strike and jar the filter mounting plate to shake off the filte... | 07/11/1978 |
| 4036610 | Rapping shaft drive assembly for electrostatic precipitators Rapping shaft drive assembly for electrostatic precipitators including a rotatably mounted isolator disposed between a rapping shaft and rapping shaft support means, the isolator including heat means therein and the support means including at least two ro... | 07/19/1977 |
