Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8172930 | Cleanable in situ spark arrestor A system for reducing the occurrence of fires in a fabric filter dust collection system. The system includes an elongated housing having a first end and a second end distal from the first end. A gas flow inlet is provided in flow communication with an interior porti... | 05/08/2012 |
| 8002882 | Droplet separator installation A droplet separator installation for gas washers, cooling towers etc. is described according to which a row of parallel droplet separator profiles is supported at a support construction by means of an intermediate construction. The intermediate construction serves f... | 08/23/2011 |
| 7332007 | Dusting device with multiple stream nozzles A dedusting device 1 with a demister 15 advantageously arranged standing obliquely has a very compact construction because sufficient moistening or wetting of dust-containing crude air 24 is possible through the use of intensively acting multipl... | 02/19/2008 |
| 6478461 | Transportable hot-mix asphalt manufacturing and pollution control system A hot-mix asphalt manufacturing system including treatment of emissions and recirculated gases includes a counter-flow rotary dryer 12 having a combustion chamber 28, an inlet 24 for dry ingredients, an outlet 26 for hot-mix asphalt, and a plate collector... | 11/12/2002 |
| 5657744 | Ventilation ceiling with integral air filter units Ventilation ceiling, comprising channel elements running at a distance from and parallel to each other, and ceiling panel elements leading with their side edges into the channel elements, which chapel elements are in fluid communication with a fluid-colle... | 08/19/1997 |
| 4948397 | Method, means and device for separation of particulate matter from a carrier medium Separation of particulate matter in the form of solids, liquid particles and mixtures thereof from a carrier medium comprising of air, vapor, gases, flue or mixtures thereof by means of a moving form having a moving surface with perforations or apertures ... | 08/14/1990 |
| 4936881 | Cooling tower for steam-powered plants A cooling tower has a flue gas outlet extending upwardly above the heat exchanger baffles in which the water from a steam power plant is cooled in counterflow to a rising cooling air stream. The mouth of the duct is formed with a droplet trap supplied wit... | 06/26/1990 |
| 4885011 | Cooling tower for the cooling water that drains/ from the condensor of a steam generator or the condensors/ of a plurality of steam generators The present invention relates to a cooling tower for the cooling water that drains from the condensor of a steam generator or from the condensors of a plurality of steam generators; the tower is fitted with large-area inserts and these form a heat-exchang... | 12/05/1989 |
| 4539024 | Scrubber for the desulfurization of flue gases A scrubbing column for flue gases and especially power plant flue gases removes sulfur oxides by absorption in a calcium containing scrubbing liquid and is surmounted by a water separator which is subdivided into sectors readily traversed by the flue gas ... | 09/03/1985 |
| 4264343 | Electrostatic particle collecting apparatus Apparatus for charging and collecting submicron particles. The particles are charged by a needle-to-plate ionizer having offset rows of needles which are spaced from the plate such that voltage gradients of 6 KV/cm and higher are achieved. Needle-to-needl... | 04/28/1981 |
| 4263021 | Gas-liquid contact system A gas-liquid contact system for absorption of gaseous contaminants in an absorptive liquid where contact is attained by controlled flow relation between the gas and liquid forming a fluidized liquid mass for intimate contact between gas and liquid.... | 04/21/1981 |
| 4251242 | Mist eliminator A mist eliminator comprises a plurality of blades spaced apart in parallel with each other. Each blade has a step-like portion which curves smoothly up to a single plateau. An elimination chamber is located on the plateau. The length from the eliminating ... | 02/17/1981 |
| 4145195 | Adjustable device for removing pollutants from gases and vapors evolved during coke quenching operations The device is positioned in a stack arranged above a location where coke quenching is performed. The coke quenching, which takes place below the stack, evolves steam and gases containing solid coke particles or dust, and which must be prevented from passi... | 03/20/1979 |
| 4140501 | Wet gas modular venturi scrubbing apparatus The multiple-throat venturi wet gas scrubbing apparatus embodies modular venturi entry apparatus and progressively finer demister vane sections in a horizontal scrubbing unit for in-line connection in gas stream piping or ducting and mounting with its str... | 02/20/1979 |
| 4095964 | Scrubber tower An improved scrubber tower is provided for removing pollutants from hot, corrosive off-gases from chemical processes, such as processes for the production of titanium dioxide pigments. The tower is formed from wood strip baffles treated with fire resistan... | 06/20/1978 |
| 4067706 | Apparatus for gas scrubbing and particulate solids removal Wet type gas scrubber in which gases are brought into a central column tangentially and swirled downwardly towards the scrubbing water in a settling tank. The gases are then reversed upwardly and outwardly of the central column where they are passed throu... | 01/10/1978 |
| 4053292 | Gas scrubbing plant A drop trap for a gas scrubbing plant, the trap having a plurality of parallel spaced apart corrugated plates forming channels through which gas flows and baffles at the downstream side of the corrugated plates to impart a downward velocity to liquid part... | 10/11/1977 |
| 4050910 | Apparatus and method for removing pitch from thermally cracked gas A demister is disclosed containing a plurality of bubble-cap trays and a plurality of sieve trays beneath the bubble-cap trays and arranged so that the distance between the uppermost sieve tray and the bottom surface of the lower-most bubble-cap tray is a... | 09/27/1977 |
| 3967942 | Purifying apparatus Apparatus for purifying the air laden with paint particles for use in a paint spray booth, comprises a vertical duct having a mixing chamber at one end. The chamber has a horizontal wall formed with one or more straight or curved slots at which a spray or... | 07/06/1976 |
| 3958960 | Wet electrostatic precipitators The precipitator includes one or more main sections each having a plurality of spaced, substantially parallel collection plates, with discharge electrodes being interposed in the spaces between the collection plates. The plates extend in the direction of ... | 05/25/1976 |
