Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7280883 | Substrate processing system managing apparatus information of substrate processing apparatus A substrate processing apparatus and an information storage server are connected with each other through a network. A storage part of the substrate processing apparatus stores set information and a control program, for controlling operation of the substrate processi... | 10/09/2007 |
| 7222444 | Coordinated linkage system for a work vehicle A work vehicle with a tool pivotally attached to a linkage, an actuator for controllably moving the tool about its pivot, and a tilt angle sensor for sensing the absolute angle of the work tool relative to the earth. A controller is adapted to perform an auto-hold f... | 05/29/2007 |
| 7082912 | System and method for controlling engine valve lift and valve opening percentage System and method for controlling internal combustion engine valve lift and valve opening by an arrangement of cams with overlapping cams track that synchronize and vary the rise, fall, and dwell of the inlet and exhaust valves of an IC engine. ... | 08/01/2006 |
| 6954041 | Supporting apparatus having a plurality of magnets that generate a floating force and method, stage apparatus, and exposure apparatus Compatibility of a small spring constant and large supporting load is realized, so that a stable operation is assured even if a fine-movement linear motor fails. A supporting unit, having a plurality of magnets whose same poles are arranged facing each other, is ada... | 10/11/2005 |
| 6953014 | Thermal compensating desmodromic valve actuation system A thermal compensating desmodromic valve actuation system for opening and closing at least one valve of an engine having a cam assemblage and a driving mechanism for reciprocal movement operably connected to said cam assemblage. The cam assemblage includes a cam mec... | 10/11/2005 |
| 6948930 | Furnace head or furnace throat seal A blast furnace head (11) including a material loading device comprising rotary chute (14) driven in rotation about a first, vertical axis of rotation (16), and a loading chute (15) at the outlet of same, driven in rotation about a second... | 09/27/2005 |
| 6917046 | Positioning apparatus, charged-particle-beam exposure apparatus, and device manufacturing method A positioning apparatus includes a first stage, capable of moving in a first direction and a second direction which is orthogonal to the first direction, a second stage, arranged on the first stage and moved with the first stage, and capable of moving in the first d... | 07/12/2005 |
| 6903468 | Moving stage device in exposure apparatus Disclosed is a stage device by which high precision motion and high speed motion can be accomplished simultaneously. The stage device includes a stage, a repulsive magnet unit for accelerating and/or decelerating the stage with respect to a movement direction, and a... | 06/07/2005 |
| 6678583 | Robotic storage buffer system for substrate carrier pods A storage/buffering system for the stocking and/or buffering of substrate and/or substrate carriers in a process environment includes a 6-axis robot. An end-effector is connected with the robot providing an additional one degree of freedom and a mechanism... | 01/13/2004 |
| 6382112 | Chute of a feed system for a refuse incineration plant having a cutting apparatus The chute is provided with a cutting apparatus which has a mating holder, a clamping slide and a cutting slide. To close the chute, the mating holder is moved inward approximately into the center of the chute and is locked. Then, the clamping slide is mov... | 05/07/2002 |
| 6291802 | Sample introduction assembly A sample introduction system includes a drop chamber which can be sealed and outgassed and which includes a movable jaw selectively holding the sample in position above a conduit communicating with an open crucible for receiving a sample once the jaw has ... | 09/18/2001 |
| 5507846 | Apparatus for producing methane-rich gas using a fixed kiln with rotor steam gasifier A gasifier for producing methane-rich fuel gas from a biomass material feed includes at least one cylindrical vessel, and an axially extending rotor mounted within the vessel. A feeding system is mounted to the vessel at the input end for introducing feed... | 04/16/1996 |
| 5017131 | Atmosphere furnace An atmosphere furnace including a plurality of divided furnace units, work transfer devices connecting the adjacent divided furnace units and those for the divided furnace units at both ends of the furnace. Each transfer device includes a tubular connecti... | 05/21/1991 |
| 4949940 | Charging arrangement for shaft furnaces, in particular blast furnaces A charging arrangement for shaft furnaces, in particular blast furnaces, comprising a container which is arranged above the shaft furnace and which is subdivided by a separating wall into a lower distributor chamber and an upper lock chamber to which the ... | 08/21/1990 |
| 4904143 | Apparatus for the continuous feeding of material to be melted In an apparatus for the continuous feeding of material to a melting crucible in the pulling of monocrystals in a vacuum tank, a first container (3) is provided which is provided with an internal lining (4) adapted to the container shape and having a funne... | 02/27/1990 |
| 4859131 | Supporting framework for a loading installation of a shaft furnace The loading installation comprises a device for introducing and distributing charge material into a shaft furnace, this device being surmounted in ascending order, and in alignment with the central axis of the furnace, by a compensator, a valve housing, a... | 08/22/1989 |
| 4820105 | Apparatus for charging a shaft furnace The apparatus comprises a distribution spout and a hopper which has two containers mounted thereabove provided with sealing valves and a metering member. In order to simplify the weighing system, the hopper is independent of the mouth of the furnace and i... | 04/11/1989 |
| 4767258 | Process and apparatus for charging a shaft furnace A process and apparatus for charging a shaft furnace is presented which ensures the vertical and symmetrical fall of charging material from a hopper onto a distribution spout. The discharge valve of the hopper and the valve of a chamber feeding material t... | 08/30/1988 |
| 4755095 | Device for closing a top central opening of a vessel and its application to a storage hopper in a shaft furnace charging installation This invention relates to a device comprising a sealing valve carried by a control arm inside a vessel and cooperating with a seat around an opening. The mechanism for operating the valve comprises a hollow rotary support housed about its axis of rotation... | 07/05/1988 |
| 4728240 | Charging installation for a shaft furnace An apparatus for distributing charge material to a shaft furnace is presented which effectively reduces the segregation of the particles in a storage housing positioned above the shaft furnace. In the present invention, the storage hopper and the distribu... | 03/01/1988 |
| 4514129 | Furnace charging installation The delivery of charge material to the hearth of a pressurized blast furnace under the influence of gravity is accomplished without the necessity of changing the direction of material flow at a point exterior of the furnace. The rate of flow of the charge... | 04/30/1985 |
| 4439276 | Filling arrangement for coke oven chambers An arrangement for filling at least one coke oven chamber has a transport device arranged to transport coal, a chute member located under the transport device to guide coal to a filling opening of the coke oven chamber, at least one closing member arrange... | 03/27/1984 |
| 4395179 | Apparatus and method for charging material into a receptacle Apparatus and method are disclosed for charging particulate material of varying sizes into a shaft furnace, such as an oil shale retort or blast furnace, in which a highly uniform distribution of particle sizes of charge material and a desired height and ... | 07/26/1983 |
| 4379023 | Charging hole lock for horizontal coke ovens A lock is disclosed for charging holes of horizontal coke ovens and for permitting the charging of moist or preheated coal through charging devices, such as longitudinal conveyors fixedly mounted on the battery, or traveling charging cars, while preventin... | 04/05/1983 |
| 4234283 | Scrap metal fed system for a closed rotary kiln or heating oven A scrap metal feed system is described employing an endless conveyor having a surface for supporting materials thereon. The conveyor is equipped with lifters extending outwardly from the surface at periodic intervals. A first hopper feeds this conveyor an... | 11/18/1980 |
| 4140228 | Dry piston coal feeder This invention provides a solids feeder for feeding dry coal to a pressurized gasifier at elevated temperatures substantially without losing gas from the gasifier by providing a lock having a double-acting piston that feeds the coals into the gasifier, tr... | 02/20/1979 |
| 4089429 | Apparatus for introducing particulate material into a vessel Disclosed is apparatus for introducing particulate material, such as finely divided coal, into a vessel, such as a coal gasifier, having a gas pressure different from atmospheric pressure, comprising a gas lock chamber having at each of its feed and disch... | 05/16/1978 |
| 4074835 | Furnace charger with discharge channel having approximate oval cross-section Apparatus including a channel defining member and a movable flow control device cooperating therewith for exercising variable control over the rate of delivery of charge material from a hopper to a furnace is disclosed. The channel defining member approxi... | 02/21/1978 |
| 4072239 | Arrangement for charging a furnace in a gastight and dust-tight manner A furnace has a filling inlet normally closed by a removable cover. An arrangement is disclosed which opens the filling inlet, then fills the interior of the furnace, and then recloses the inlet all in gas-tight and dust-tight manner in order to prevent t... | 02/07/1978 |
| 4042130 | Charging device for shaft furnace A rotatable and angularly adjustable charging and distribution device for shaft furnaces, particularly blast furnaces, is presented. A cylindrical or frustoconical distribution spout is suspended at three points which define a plane. The three points of s... | 08/16/1977 |
| 4029220 | Distributor means for charging particulate material into receptacles Disclosed are receptacles, such as shaft furnaces illustrated by a blast furnace and an upright oil shale retort, embodying rotatable charge distributor means for distributing particulate charge material in the furnace, which charge distributor means can ... | 06/14/1977 |
| 3963128 | Charging device for a blast-furnace The charging device for a blast-furnace is so constructed as to be lighter, smaller in overall size and cheaper than known devices. It is also more reliable and requires substantially less maintenance while it enables the charge distribution to be regulat... | 06/15/1976 |
