Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7264694 | Retort heating apparatus and methods A retort heating apparatus for processing a feed material includes a heating chamber bounded at least in part by a side wall. A plurality of baffles are at least partially disposed within the heating chamber. Each baffle includes an elongated body having a top surfa... | 09/04/2007 |
| 7213814 | Seal assembly The subject invention discloses a sealing assembly that includes a first component and a second component moveable into and out of mating engagement to form a seal therebetween. The first component has a first sealing surface defining a groove and a sealing bead ext... | 05/08/2007 |
| 7166197 | Coke oven door with wraparound gas channel and membrane A coke-oven door has an annular periphery normally juxtaposed with an annular door frame. A seal assembly for the door has at least two flexible, relatively displaceable, metallic, and annular membranes each having an annular inner periphery and an annular outer per... | 01/23/2007 |
| 7067043 | Coke oven door with gas channel A coke oven has a coke-oven chamber adapted to hold a mass of coke, defining above the mass of coke a gas-collecting chamber, and having a door opening. A door closes the door opening. A peripheral gas channel extends around the opening between the door and coke-ove... | 06/27/2006 |
| 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 |
| 6843889 | 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... | 01/18/2005 |
| 5820736 | Pyrolysing apparatus This apparatus can effect pyrolysis of hydrocarbon containing material at high temperature of 400° to 500° C. and under vacuum in consecutive batches. The apparatus comprises a cylindrical drum rotatable at a variable speed about a horizontal axis and s... | 10/13/1998 |
| 4599142 | Coke oven door lining A construction for the refractory lining member of a coke oven door is provided. The coke oven door lining includes a generally "U"-shaped frame with a castable refractory element formed therein. The frame is provided with a base portion and first and sec... | 07/08/1986 |
| 4458095 | Use of zinc and copper (I) salts to reduce sulfur and nitrogen impurities during the pyrolysis of plastic and rubber waste to hydrocarbons An improvement in a process for the pyrolytic conversion of rubber and plastic waste to hydrocarbon products which results in reduced levels of nitrogen and sulfur impurities in these products. The improvement comprises pyrolyzing the waste in the presenc... | 07/03/1984 |
| 4390397 | Heat dissipating charging hole cover A coke oven charging hole that dissipates heat emanating from the oven so that the cover resists warping due to overheating. The concentration of large amounts of heat directly above the charging hole is also avoided. A lower concave housing member fits i... | 06/28/1983 |
| 4389284 | Charging hole cover seal A charging hole cover sealing structure in which a disc-shape cover is superimposed over the charging hole and an annulus-shaped charging hole frame. The frame has on its top surface a peripheral medial groove and an inner planar surface. The cover has a ... | 06/21/1983 |
| 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 |
| 4304413 | Seal for the gas offtake piping of a coke oven A seal for the offtake piping of a coke oven. The piping includes two communicating parts, such as an ascension pipe and a gooseneck, which move relatively to one another. A seal between these parts prevents escape of gases. The seal includes a trough fix... | 12/08/1981 |
| 4189352 | Coke oven door A flexible seal member is secured to the periphery of the body of a coke oven door that is shaped to the contour of the receiving door jamb of the coke oven body. A seal edge of the seal member contacts the jamb in sealing relation. A plurality of spring ... | 02/19/1980 |
| 4089424 | Device for removing coke oven chamber door A support is pivoted to a frame and supports a first hydraulic drive for actuating movable jaws to engage removing latches of a door to be removed. The support also supports a separate second hydraulic drive for locking or unlocking a door locking device ... | 05/16/1978 |
