Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7424855 | Slide arrangement A slide arrangement for blocking or closing off a channel disposed between a coal pulverizer and coal dust burners, and conveying a gas having a high proportion of coal dust. The slide arrangement includes a housing disposed in the channel wall and a shroud or steel... | 09/16/2008 |
| 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 |
| 7331298 | Coke oven rotary wedge door latch An oven door latch system for a coke oven door positionable within an oven door opening and method of sealing a coke oven. The door latch system includes a rotary member rotatively attachable to the oven door. The rotary member has a wedge-shaped, arcuate engagement... | 02/19/2008 |
| 6959704 | Grill unit and cooking apparatus with the same A grill unit and a cooking apparatus having the grill unit, the grill unit including a plurality of grill pipes; water tanks connected to ends of the grill pipes to supply water into the grill pipes; covers to selectively open and close upper portions of the water t... | 11/01/2005 |
| 6729245 | Fill door having angled movement A fill door for use on the angled surfaces of furnace shells and chemical containers. The door is pivotally coupled to a door frame integral with the angled surface and includes a rim that mates with a female channel in the door. A U-shaped latch is pivotally connec... | 05/04/2004 |
| 6705242 | Method and apparatus for hermetically sealing openings of an explosion containment chamber A method and apparatus to hermetically seal openings in an explosion suppression chamber. The present invention utilizes an air lock device to ensure that, in the event toxins are released from the primary explosion chamber opening closing means, the toxins are prop... | 03/16/2004 |
| 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 |
| 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 |
| 6244195 | Safety incinerator for rubbish in volume and flammable waste This invention is a mass incinerator for burning various rubbishes (life rubbishes, industry wastes, hospital rubbishes and like) and flammable wastes (hospital wastes, poison material and like) under high temperature atmosphere. In particularly; to an in... | 06/12/2001 |
| 6079403 | Door for a high-temperature oven A door for a high-temperature oven is disclosed that includes an external door and an internal door which are thermally isolated from one another. The internal door is held at a distance in a frame of the external door by internal door carriers. The inter... | 06/27/2000 |
| 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 |
| 6017215 | Expandable panel for environmentally controllable chamber An apparatus having at least one environmentally controllable chamber with an opening includes a chamber opening covering having at least one expandable portion that is expandable into the chamber when the covering is in a closed position. A chamber openi... | 01/25/2000 |
| 5913273 | Incinerator including vibrator and incinerator including drying chamber A waste incinerator including separate burning-, blower-, chimney- and ash-receiving chambers. A suction-discharge port is provided in a wall between the burning chamber and the chimney chamber for discharging gases from the burning chamber through a chim... | 06/22/1999 |
| 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 |
| 5761859 | Interconnected door jamb brick Refractory door jamb assemblies for high temperature furnaces. The door jamb assemblies include alternating courses of refractory brick shapes, selected ones of which are fitted with apertures that are aligned as by drilling, when the bricks are installed... | 06/09/1998 |
| 5727479 | Furnace door closure system A guillotine-style door closure system for a furnace comprises a furnace opening with a door frame on a vertical side of the furnace; a furnace door adapted to mate with the frame; a left closing chain mounted, at one end, to the vertical side of the furn... | 03/17/1998 |
| 5720855 | Coke oven door A coke oven door comprises a door frame, a plate mounted so as to be freely movable relative to the door frame within limits and a seal operatively mounted to the plate and positioned around the periphery of the frame for effecting sealing against the jam... | 02/24/1998 |
| 5688376 | Method for the gas sealing manufacture of a door frame of a coke oven battery and such a door frame structure Method for the gas sealing manufacture of a door frame of a coke oven battery which battery comprises a refractory structure with an armor plate connected to it onto which the door frame is fitted characterized by the following steps: measuring the profil... | 11/18/1997 |
| 5683552 | Coke oven door liner assembly A coke oven door assembly has first abutting vertically aligned refractory cold face layers, second abutting vertically aligned refractory hot face layers spaced therefrom, and an integral one piece uppermost refractory section having a bottom, a horizont... | 11/04/1997 |
| 5658434 | Coke-oven door assembly A coke-oven door assembly has a rigid door, a mounting block adjacent the door, a door-plug backing plate fixed to the mounting block, and a membrane having a center portion between the backing and mounting blocks and a periphery juxtaposed with a coke-ov... | 08/19/1997 |
| 5613451 | Removable hopper cover An apparatus for covering the hopper of a material melting and dispensing apparatus is disclosed. The apparatus includes a cover lid engageable with a cover base. A hinge arrangement allows pivoting between the cover lid and cover base, and also allows fo... | 03/25/1997 |
| 5603810 | Coke-oven door seal A coke-oven door seal and sealing system wherein the coke-oven door seal comprises a sealing arm in angular relation with a door jamb surface, said sealing arm being engagable with said door jamb surface at a knife edge, and said sealing arm protruding be... | 02/18/1997 |
| 5575641 | Semiconductor processor opening and closure construction A semiconductor processor including an enclosure with an access opening. A door assembly is supported for translational movement between aligned and displaced positions relative to the access opening. The door assembly has a main part, and an extension pa... | 11/19/1996 |
| 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 |
| 5449289 | Semiconductor processor opening and closure construction A semiconductor processor including an enclosure with an access opening. A door assembly is supported for translational movement between aligned and displaced positions relative to the access opening. The door assembly has a main part, and an extension pa... | 09/12/1995 |
| 5443696 | Coke oven door Coke oven doors and more particularly coke oven doors having a unique and novel spring arrangement for maintaining the knife edge of the sealing element in sealed relation to the face of the coke oven door jamb, an improved sealing arrangement at the leve... | 08/22/1995 |
| 5302120 | Door assembly for semiconductor processor A door assembly for semiconductor processing equipment used to treat semiconductor substrates, wafers, photomasks, data disks, and other units. The door assembly is mounted to the front wall of a semiconductor processor enclosure having an access opening ... | 04/12/1994 |
| 5263425 | Waste processing system door assembly A door assembly for an air lock of a waste processing system comprising a vertical sliding door member having a perimeter entirely supported when the sliding door member is in a closed position and is sealed by a selectively inflatable gasket assembly loc... | 11/23/1993 |
| 5257280 | Gas introducing and stirring apparatus of metallurgical vessel The present invention has been devised to obtain a metallurgical effect by introducing refining gas into a molten metal in a metallurgical vessel and stirring the molten metal sufficiently by convection, and to improve durability of one nozzle or a few no... | 10/26/1993 |
| 5221019 | Remotely operable vessel cover positioner A remotely operable vessel cover assembly used with a vessel. The cover assembly has a mounting rim secured to the vessel surrounding a circular opening and a circular cover to fit against the mounting rim. A force ring having a plurality of openings is a... | 06/22/1993 |
| 5217369 | Atmospheric furnace door counterbalance An improved apparatus is described for the closure of the open end of a conventional tube furnace used in the treatment of semiconductor devices manufactured in the integrated circuit industry. The apparatus consists primarily of an adjustable fixed weigh... | 06/08/1993 |
| 5193998 | Sealing arrangement for heat treatment apparatus A heat treatment apparatus for vacuum and high pressure operation includes a container within a vessel separated by thermal insulation. The vessel has a door for access to the container. Both the container and thermal insulation have separate doors mounte... | 03/16/1993 |
| 5190182 | Slide gate A slide gate closure is provided for bottom discharge bins which are used for storing and transporting large quantities of dry chemicals. The slide gate includes screw means attached to the gate whereby the contents of the container may be fully or partia... | 03/02/1993 |
| 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 |
| 5088422 | Rotary isolation door A rotary isolation door for use in a conduit extending between an auger feeder and an incinerator which opens to allow the auger feeder to convey material to the incinerator and closes to prevent burn-back of material in the conduit from the incinerator. ... | 02/18/1992 |
| 5029533 | Pressure relief mechanism A safety door for a furnace or like apparatus is operable to open under the force of a hydraulic cylinder when the pressure under the furnace exceeds a predetermined upper limit corresponding to an abnormally high pressure caused by an explosion within th... | 07/09/1991 |
| 5022380 | Oven with double door An oven with double door is disclosed formed of a rigid projecting frame which supports, through guide rods, an inner plate which is urged by springs. Closure is provided by the inner plate which slides with respect to the frame and supports a peripheral ... | 06/11/1991 |
| 4977838 | Modular door jamb and lintel system for industrial furnaces A modular door jamb and lintel system for an industrial furnace having an access door opening. A module is provided with a pair of spaced, generally vertical door jambs of precast refractory material. A refractory lintel spans the door jambs and combines ... | 12/18/1990 |
| 4972785 | Free hanging reheat furnace door A free hanging reheat furnace door has a main door section with modular refractory units secured to a frame in lateral rows and a detachable bottom door section formed from channels and struts which is also covered by modular refractory units. The door se... | 11/27/1990 |
| 4938690 | Ingot pusher furnace with rail drawbridges An ingot pusher furnace includes means for reducing heat loss from the charging and discharging ends of the furnace so as to produce a more efficient and uniform heating of the ingots. The pusher furnace includes support rails which extend between a first... | 07/03/1990 |
