Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7316762 | Dynamic flange seal and sealing system The present invention features a flange to flange dynamic seal and sealing system, particularly suited for use within high temperature, high pressure environments, such as a delayed coking process. The dynamic flange seal and sealing system comprises two primary ele... | 01/08/2008 |
| 7097743 | Method for operating a coke-oven battery A method is provided for operating a coke oven battery including many identical coking chambers, a raw gas receiver, and throttle devices arranged in the receiver for individually controlling the gas pressure in the chambers. Each throttle device includes an immersi... | 08/29/2006 |
| 7094321 | Device for controlling the gas pressure in a coke oven chamber A device for controlling the gas pressure in a coke oven chamber, has an immersion cup, to which water is supplied, and with an immersion pipe which is connected to the gas space of the coke oven chamber and terminates in the, immersion cup. The immersion cup has an... | 08/22/2006 |
| 7033460 | Coke drum bottom throttling valve and system A coke drum bottom de-heading system having an internal shroud enclosure and a shroud end cap opened by a flange to a coke bottom de-heading valve capable of accepting the end of a gate valve upon actuation. Acting in coordination with the shroud enclosure to preven... | 04/25/2006 |
| 6964727 | Coke drum bottom de-heading system The present invention features a coke drum de-heading system comprising (a) at least one coke drum having an orifice therein; (b) a de-header valve removably coupled to the coke drum designed to de-head the coke drum; and (c) an exchange system, including an upper a... | 11/15/2005 |
| 6808602 | Coke drum bottom head removal system A coke drum bottom head removal system and method for deheading the bottom head cover of a coke drum comprises a carriage that is positionable beneath the bottom head cover, and a cart mounted to the carriage. Several clamps vertically mounted to the cart are positi... | 10/26/2004 |
| 6758945 | Method and apparatus for quenching the coke drum vapor line in a coker A method and apparatus for quenching the coke drum vapor line from a coke drum to the main fractionator in a coker unit whereby the volume of quench liquid prevents the drum vapor line from plugging with carbon-based deposits. A differential pressure control techniq... | 07/06/2004 |
| 6143137 | Cooling pocket for a rotary drum cooler having a flexible vent pipe assembly A rotary drum cooler for cooling particulate material (e.g. coke particles) having at least one cooling pocket which, in turn, includes a flexible vent pipe assembly which can slide in relation to the shell of the cooler. By making the vent pipe slidable,... | 11/07/2000 |
| 6132560 | Rotary drum cooler having adjustable lifters A rotary drum cooler having a shell for cooling particulate material (e.g. coke particles) wherein the volumetric capacity of the lifters within the shell which lift the material from the bottom of the shell to the exit thereof can be adjusted to thereby ... | 10/17/2000 |
| 6077399 | Method for producing uniform quality coke The present invention deals with a method to produce uniform quality coke for a blast furnace by quenching coke at a pre-determined rate to produce coke with essentially uniform moisture; further, this invention possesses specific features to produce coke... | 06/20/2000 |
| 6039844 | Containment system for coke drums A system that reduces worker exposure during coke drum unheading and cutting operations and that reduces risk to workers also provides a capacity increase in that the time a coke drum is not being filled is reduced. This system employs a containment shiel... | 03/21/2000 |
| 5968320 | Non-recovery coke oven gas combustion system A system for transporting and burning under negative pressure in a boiler a raw coke oven gas to produce steam energy. The system has the usual battery of coke ovens and corresponding ascension pipes connected to a collector main. Flushing liquor is spray... | 10/19/1999 |
| 5827403 | Method of designing and manufacturing a delayed coker drum A method of manufacturing a delayed coker drum as used in a refining process to receive coke feedstock as a hot liquid and in which the coke feedstock is cooled and quenched to produce solid coke, the hot liquid causing the drum to initially expand circum... | 10/27/1998 |
| 5804038 | Reduction of metal stresses in delayed coking drums The metal stresses in a delayed coke drum are reduced by externally cooling the coke drum near the junction of the drum shell and the supporting skirt thereof during the quench step. This reduces the metal stresses at the area around the welds of the drum... | 09/08/1998 |
| 5795445 | Method of controlling the quench of coke in a coke drum A method of controlling the rate of quench of coke in a coke drum to reduce deterioration of the coke drum sidewall in which water is admitted into the coke drum filled with hot coke to cool the coke includes the steps of determining the stress imposed on... | 08/18/1998 |
| 5622604 | Coke cooling apparatus A rotary coke cooling drum is formed of plural opposed folded plates welded together and having spaced apart openings for receiving an array of tubular cooling pockets which are separately formed and are insertable in the openings to provide heat transfer... | 04/22/1997 |
| 5564340 | Coke oven rail car with drive control system for positioning the car and door extractor which compensates for thermal distortion of oven jambs A coke oven door extractor is mounted on the rail car and includes door engaging supports movable in individually differing amounts relative to a plane parallel to and including the door jamb and a door jamb height axis of symmetry and movable vertically,... | 10/15/1996 |
| 5558746 | Apparatus for quenching a gas stream in the production of vinyl chloride monomer A method and apparatus for quenching a gas stream in the production of vinyl chloride monomer includes the use of a knock back condenser and a plurality of column fractional distillation trays disposed within the quench column, and a liquid stream of 1,2-... | 09/24/1996 |
| 5421963 | Coke-feeding device with housing for a dry cooling installation for coke Coke feed device with housing (6) for a coke dry cooling installation which is allocated to a cooling shaft (41) and consists of a stationary hopper (1) with an extraction line (9), a movable hopper (2), a movable, liftable and lowerable cooling shaft clo... | 06/06/1995 |
| 5192398 | Coke box with indirectly cooled receiving chamber and exhaust gas burner A coke box for dry quenching and indirectly cooling a charge of coke received from the discharge end of a coke oven. The coke box includes a chamber for receiving the coke and a seal engageable with the discharge end of the oven to substantially prevent t... | 03/09/1993 |
| 5190617 | Coke handling apparatus including coke box and carrier vehicle An improved coke handling apparatus includes a coke box for receiving and indirectly cooling a coke charge from a coke oven in a pollution-free manner and a vehicle for transporting and maneuvering the coke box. The carrier may be self-propelled with at l... | 03/02/1993 |
| 4813788 | Static, gravity-flow mixing apparatus for particulate matter Gravity flow mixing apparatus for the packed bed flow mixing of particulate matter, such as hot, retorted oil shale, comprises a mixing tower having therein a plurality of parallel mixing tubes. A plurality of three dimensional mixing members are axially ... | 03/21/1989 |
| 4772360 | Thin wall coke quenching container A twin wall coke quenching container having an upwardly slanting bottom, there being a first plurality of quenching water inlets in an upper portion of that bottom, the openings of the first plurality having axes transverse to the upwardly slanting bottom... | 09/20/1988 |
| 4747913 | Cooling apparatus for granular coke material Apparatus for cooling granular material such as petroleum coke comprises an elongated drum characterized by a generally cylindrical shell wall having spaced apart circular segment pockets extending radially inwardly from the shell wall toward the central ... | 05/31/1988 |
| 4743342 | Coke quenching apparatus A coke quenching car comprises an open coke receptacle having a sloping bottom wall inclined toward one side, closely spaced vertical internal walls, a vertical side wall opposite the one side and end walls. All of the walls are formed with cooling fluid ... | 05/10/1988 |
| 4726465 | Coke quenching car A quenching car from coke ovens that serves to receive a carbonized batch from an oven chamber while standing still and is capable of travel alongside a battery of coke ovens to a point under a quenching tower, includes a coke receptacle which is designed... | 02/23/1988 |
| 4683031 | Hot coke receiving device A hot coke receiving device of a type having a coke bucket body which has a cylindrical or polygonal form with a discharge gate provided in the bottom thereof, and having the coke bucket turnably mounted on a bucket car, said receiving device comprising: ... | 07/28/1987 |
| 4667731 | Coke cooler A bulk hot coke cooler with a vessel for holding the coolant material and a drum rotatably supported within the vessel so that when the drum rotates, it moves through the coolant, the drum having a plurality of hollow cooling pockets going from one side o... | 05/26/1987 |
| 4664750 | Method for coke quenching control Hot coke 3 expelled from a coking chamber is conveyed in a quenching car 2 to a quenching tower 4 past an infra-red detector 6 which provides a signal to initiate supply of the quenching water. It is a problem to control the amount of quenching water supp... | 05/12/1987 |
| 4634500 | Method of quenching heated coke to limit coke drum stress The present invention provides a method of quenching heated coke in a coke drum. Quench water is fed into the coke drum to cool the coke, and the stress in the coke drum wall is monitored during the quenching. The rate of feeding the quench water into the... | 01/06/1987 |
| 4614567 | Method and apparatus for selective after-quenching of coke on a coke bench Method and apparatus for detection and selective after-quenching of red hot pockets in previously quenched hot coke lying on a coke bench, in which the temperature of the coke is sensed and recorded over the entire surface or area of the coke bench by tem... | 09/30/1986 |
| 4604165 | Apparatus for processing bulk materials by induction An apparatus for processing bulk materials by induction wherein the materials are processed within a plurality of compartments whose walls comprise a material which is adaptable to being heated by induction and wherein the plurality of compartments common... | 08/05/1986 |
| 4557804 | Coke cooler A bulk hot coke cooler with a vessel for holding the coolant material and a drum rotatably supported within the vessel so that when the drum rotates, it moves through the coolant, the drum having a plurality of hollow cooling pockets going from one side o... | 12/10/1985 |
| 4556458 | Apparatus for cooling, depressurizing, and moisturizing retorted oil shale An apparatus and process are provided for depressurizing, cooling, and, optionally, moisturizing retorted oil shale produced in an oil shale retort operated at superatmospheric pressure. Hot retorted oil shale particles are gravitated from the retort and ... | 12/03/1985 |
| 4521279 | Apparatus for dry cooling coke A method of dry cooling coke using a coke transporting bucket which has a removable cover with an exhaust pipe extending from the interior of the bucket to an exterior exhaust connection and a cooling shaft for the coke comprises directing red hot coke in... | 06/04/1985 |
| 4508596 | Apparatus for dry cooling of coke A method for the dry cooling of coke comprises transferring the coke from the coke oven to a special bucket which is moved over a charging hole of a cooling pit. The space between the bucket and the charging hole is closed off and sealed against the atmos... | 04/02/1985 |
| 4439275 | Coke calcining apparatus A coke calcining apparatus comprises a rotary kiln (1), an intermediate cooler (3) installed outside of but rotating unitarily with the kiln at an intermediate part thereof and having inlets (32) and outlets (33) respectively communicating with the upstre... | 03/27/1984 |
| 4437936 | Process for utilizing waste heat and for obtaining water gas during the cooling of incandescent coke A process for utilizing waste heat and for obtaining water gas during the cooling of incandescent coke ejected from a chamber oven is described, this process being in two stages. In the first stage, the coke is dry-cooled with a mixture of water gas and w... | 03/20/1984 |
| 4409067 | Quenching method and apparatus A column of hot coke from a shaft furnace moves downwardly into a vessel which it fills and forms a pile. A gap is left between the angle of repose of the coke surface and the upper portion of the vessel. Water is sprayed onto hot coke as it enters the ve... | 10/11/1983 |
| 4406747 | Apparatus for the cooling of solid residues of gasification The present specification describes and claims a method and apparatus for use in cooling the solid residue of gasification of a reactor operated at a pressure above atmospheric for the gasification of carbonaceous materials. The residue of gasification is... | 09/27/1983 |
