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| Number | Title | Issue Date |
| 7389610 | Door system A door system used in a doorway of a pressurizable compartment of a high temperature structure, having a screw for compressing the door and a thrust collar providing clearance between the thrust collar and a bearing member during decompression of the door such that ... | 06/24/2008 |
| 7013964 | High temperature heat exchanger structure To provide a thermal connection that can withstand mechanical stress in a high temperature structure comprising a panel having one face carrying a circuit made up of tubes in which a fluid flows, the outside walls of the tubes are covered in respective high thermal ... | 03/21/2006 |
| 6439171 | Inner door/burner assembly for fuel-fired water heater An inner combustion chamber access door member for a fuel-fired water heater has main and pilot burner structures respectively supported thereon by gas supply tubes sealingly extending through and anchored to the door member, and is further provided with ... | 08/27/2002 |
| 6415724 | Water-jacketed, high-temperature, stretcher-accessible door for a boiler An access door for a boiler or furnace has a water-cooled jacket mounted on a door panel frame for use in high temperature regions of furnaces and boilers. The door is large enough to permit a stretcher to pass through unobstructed. The water-cooled jacke... | 07/09/2002 |
| 6276308 | Cooled-door boiler An improved boiler of the warm water or steam type includes a door with a water chamber to assist in cooling the boiler. Water moves from the boiler to the door chamber through a bottom pipe on the connected vessels principle. Water or steam exit the door... | 08/21/2001 |
| 6276307 | Heating apparatus, housing and stand A boiler apparatus is provided with a forwardly-opening hinged door. To open the door, the top of the door is moved away from the housing and toward the technician. One or more hinges may be located at the bottom of the door. Since the door does not open ... | 08/21/2001 |
| 6029648 | Outside wood-burning furnace A natural draft furnace has a firebox inside a water box with fire tubes containing water running through the firebox, flues from the firebox running through the water box, a front/fire door of double wall construction to preheat entering air, a damper in... | 02/29/2000 |
| 5803021 | Boiler access door construction Apparatus for selectively permitting access to the interior of a boiler and selectively closing off access to the interior of the boiler which includes a frame, a support plate, and a hinge. The hinge couples the support plate and the frame and allows piv... | 09/08/1998 |
| 5611299 | Boiler with reduced NOX emission A boiler has an exterior housing, and a water-cooled fire chamber within the exterior housing having a rear face wall and a front face wall. A door is provided on an end of the exterior housing, and forms the front face wall of the fire chamber. The door ... | 03/18/1997 |
| 5556515 | Coke oven door A coke oven door, which includes a metal frame, means for latching the door in a closed position, a sealing member extending around the perimeter of the frame having forward edges adapted to contact a sealing surface on a coking chamber door jamb for effe... | 09/17/1996 |
| 5168818 | Liquid cooled boiler door A liquid-cooled boiler door for use with a boiler having a flooded liquid section and a storage liquid section. The liquid-cooled boiler door includes an interior wall having an interior surface and an exterior surface and an exterior wall having an inter... | 12/08/1992 |
| 5158043 | High temperature application door installation This invention comprises a door for gas-tight sealing engagement in an access opening in environments involving high temperature. In one embodiment, the door is a boiler access door provided through a waterwall in a boiler, and includes a tapered insulati... | 10/27/1992 |
| 4570550 | Water cooled door A water cooled door (10) for a slagging furnace include a casing (16), an insulating layer (24) and a refractory layer (42). A tube panel (28) is embedded in the furnace side (12) of the refractory and carries studs (50), (52), and (54) on the furnace sid... | 02/18/1986 |
| 4524729 | Primary manway closure redundant restraint In combination, a vessel (10), opening means (16) in the vessel, a cover (18), flange means (20) surrounding the opening means, a primary closing means (22, 24) for the cover including a plurality of studs (22) securing the cover onto the vessel, the stud... | 06/25/1985 |
| 4471724 | Liquid heating system This invention is a non-fossil fuel fired hot water system which allows a large amount of water or other liquid to be raised to a relatively high temperature, but below the boiling point, in a relatively short period of time. Due to a unique air circulati... | 09/18/1984 |
| 4418649 | Boiler structure A boiler comprising a long tank lying on its side and having a fire box at one end which is adjacent to a recessed bulkhead that is spaced from a partition in the end of the tank. The top of the tank and two sides thereof extend beyond the bulkhead around... | 12/06/1983 |
| 4210086 | Cover for soaking pits and the like A novel and improved cover structure is provided for a furnace, particularly a soaking pit cover. The cover comprises a one-piece cast ferrous metal shell or body having a shallow recess at one side, a plurality of anchor devices secured in spaced relatio... | 07/01/1980 |
| 4033827 | Apparatus for sealing a coking chamber Apparatus for providing a good seal between sealing edges and sealing surfaces of a coke oven door includes an improved high temperature resistant, compressible and deformable sealing member between the sealing edge and sealing surface. The sealing member... | 07/05/1977 |
| 4027654 | Damper assembly for high temperature or corrosive gases A damper assembly for high temperature or corrosive gases including a flow through housing with a damper blade disposed therein, the damper blade including a metallic plate member attached to a transversely extending support member which extends through o... | 06/07/1977 |
| 4016046 | Apparatus and method for sealing coke oven doors A coke oven door has a primary seal that includes a first metal knife edge in contact with a door jamb first sealing surface, and a secondary seal that includes a second metal knife edge in contact with a door jamb second sealing surface. The plenum or sp... | 04/05/1977 |
| 4016045 | Coke oven door sealing system A sealing arrangement for a door of a coke oven chamber includes a fluid channel around the door carrying gases from a coke oven chamber. Means is provided that subdivides the channel into separate fluid channelways and means is provided for conducting th... | 04/05/1977 |
| 3957591 | Coking oven A coking oven has an upright wall formed with an opening which is normally closed by a door past which noxious gases escape at least at times. Outwardly adjacent the opening and the wall are formed one or more upright channels having open ends located bel... | 05/18/1976 |
