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...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7628611 | Low conductivity refractory insulation member with fiber mat A thermo-insulation article for a heat absorptive element, e.g., a water-cooled pipe, in a furnace has two parts joined to form a member for covering the pipe. Each part has an interconnected reticulated metal structure embedded in a refractory material. A thermo-in... | 12/08/2009 |
| 7175423 | Air staged low-NOx burner An apparatus and method for using staged air combustion. The apparatus includes a burner body (10) secured to a port block (42), and a fuel passageway (12) extending through the burner body (10), terminating in a fuel nozzle (22), ... | 02/13/2007 |
| 6793486 | Burner for non-symmetrical combustion and method A burner for non-symmetrical combustion generally includes a burner housing enclosing a burner plenum. A fuel conduit extends within the housing and is positioned coaxial with a line spaced from a central axis of the burner. The fuel conduit defines a fuel exit open... | 09/21/2004 |
| 6685463 | Air and fuel staged burner A burner (10) for reducing NOx emissions where supply fuel (16) and supply air (20) are supplied to a combustion tunnel (52) at high and low velocities and secondary air (26) is supplied to a secondary combustion zone (60), wherein products of ... | 02/03/2004 |
| 6471508 | Burner for non-symmetrical combustion and method A burner for non-symmetrical combustion includes a burner housing enclosing a burner plenum. A fuel conduit extends longitudinally within the housing and is positioned coaxial with a line spaced from a central axis of the burner. The fuel conduit defines ... | 10/29/2002 |
| 6029647 | Recuperative radiant tube with hot side vitiation A radiant tube assembly comprises a radiant tube having a burner leg, an exhaust leg and a recuperator inside the exhaust leg and in a stream of products of combustion flowing in the exhaust leg. The recuperator has an air intake port at a first end and a... | 02/29/2000 |
| 5775317 | Recuperative radiant tube with hot side vitiation A radiant tube assembly includes a radiant tube having a burner leg with a burner therein, an exhaust leg and a connector leg. A recuperator is located inside the exhaust leg in a stream of products of combustion flowing through the exhaust leg. The recup... | 07/07/1998 |
| 5368472 | Low NOx burner A regenerative burner having heat storage units with combustion effluent/combustion air ducts therethrough, fuel intake means and a burner body, wherein the burner is designed to suppress NOx formation and to control flame shape and characteristic in the ... | 11/29/1994 |
| 5318076 | Protective refractory locking mechanism A device for locking refractory insulation members on support elements in a heat treating furnace, boiler or other piping has a first strap end with a ramp and a second strap end with a raised bearing tab. The ramp engages the bearing tab with an interfer... | 06/07/1994 |
| 5180300 | Low NOx regenerative burner A regenerative burner having heat storage units with combustion effluent/combustion air ducts therethrough, fuel intake means and a burner body, wherein the burner is designed to suppress NOx formation and to control flame shape and characteristic in the ... | 01/19/1993 |
| 5149265 | Method for firing direct-fired burner A method for providing uniform temperature in a furnace, such as a soaking pit or a reheat furnace is disclosed. Temperatures at a front wall and a burner wall within the heating chamber are constantly monitored by a computer, and the computer operates a ... | 09/22/1992 |
| 4983118 | Low NOx regenerative burner A regenerative burner having heat storage units with combustion effluent/combustion air ducts therethrough, fuel intake means and a burner body, wherein the burner is designed to suppress NOx formation and to control flame shape and characteristic in the ... | 01/08/1991 |
| 4942832 | Method and device for controlling NOx emissions by vitiation A furnace for controlling flame temperature and emission of NOx comprising a burner to which fuel and air are supplied and product of combustion are discharged, wherein said air is vitiated with said products of combustion; a means for sensing furnace ope... | 07/24/1990 |
| 4828483 | Method and apparatus for suppressing NOx formation in regenerative burners A method and apparatus for repressing NOx formation in twinned regenerative burner pairs includes inducing a stream of hot flue gas, preferably containing enriched products of combustion, from the main hot flue gas exhaust stream and vitiating the preheat... | 05/09/1989 |
| 4800866 | Low NOX radiant tube burner and method The radiant tube burner assembly comprises a radiant tube having a burner leg and an exhaust leg. A plenum for mixing combustion air and products of combustion from the exhaust leg is positioned to direct the resultant mixture into the burner leg. A jet p... | 01/31/1989 |
| 4528672 | Weld insert and refractory anchor A protective refractory member for protecting heat-absorptive elements in a high-temperature furnace comprises a refractory shape, an interconnected, reticulated metal mesh embedded within the shape and positioned substantially adjacent an inner surface o... | 07/09/1985 |
| 4475885 | Adjustable flame burner An adjustable flame burner for an industrial furnace comprises a burner body having a baffle with a discharge face forming a forward wall thereof. A first set of space combustion sustaining gas apertures extend axially through the baffle and a second set ... | 10/09/1984 |
| 4462698 | Noncontact temperature sensing method and apparatus for ladle preheating A ladle preheat station includes a wall, a ladle base for holding a ladle juxtapositioned to the wall on one side thereof, and burner extending through the wall for firing into the ladle interior. The wall includes a sight tube extending therethrough. An ... | 07/31/1984 |
| 4457706 | Ladle station seal A ladle preheat station includes a firing wall through which a burner fires into an open end of a ladle juxtapositioned with respect to the wall, an air curtain means positioned about the firing wall so as to direct a curtain of air toward the ladle to el... | 07/03/1984 |
| 4453915 | Method and apparatus for underfiring oil country tube reheat furnaces The improvement in a walking beam oil country tube reheat furnace comprises a first row of burners positioned in spaced relationship and transverse the furnace hearth with each of the burners containing a refractory housing positioned in the limited space... | 06/12/1984 |
| 4449922 | Reheat furnace drop out door seal A discharge door assembly for a reheat pusher furnace having a drop out slope includes a refractory lined main frame, a hood extending out from the main frame, a fluid plenum extending substantially the length of the door beneath the hood and a plurality ... | 05/22/1984 |
| 4359209 | Hot air ladle preheat station and method The hot air ladle preheat station comprises an outer casing defining an opening for receiving a separately supported ladle. The opening is dimensioned so as to form a dilution air space about the ladle exterior. A wall is spaced inward of the outer casing... | 11/16/1982 |
| 4337034 | Protective refractory member locking device A protective refractory elongated hollow member for protecting pipe and the like in high temperature metallurgical furnaces comprises an arcuately shaped male part and an arcuately shaped female part interconnected at their respective longitudinal edges. ... | 06/29/1982 |
| 4305706 | Unitary protective refractory member An elongated unitary refractory member having a horseshoe-shaped configuration is defined by opposing legs, each having a distal section, an interior surface adjacent to and extending between the distal sections, an outer surface and slot-like openings ex... | 12/15/1981 |
| 4182609 | Protective refractory member A protective refractory member which protects heat absorptive elements such as pipe in a furnace comprises two parts connected at their respective longitudinal edges to form a peripherally continuous hollow member. Both parts include a reticulated metal s... | 01/08/1980 |
| 4181491 | Method and apparatus for heating a furnace chamber The method for heating the furnace chamber produces high momentum levels during the heat treating cycle so as to obtain substantially uniform temperature throughout the charge. The method includes initially firing a plurality of high velocity burners at s... | 01/01/1980 |
| 4162890 | Combustion apparatus Fuel is injected into a combustion chamber by a central burner. Combustion air is fed through an air supply passage provided in a plurality of air ejection holes on an annular plate surrounding the front end of said air supply passage.... | 07/31/1979 |
| 4145259 | Closure members A closure for an opening into a combustion chamber or a distillation chamber which tightly seals said opening. The closure has a central portion with a lip at its periphery having at least one sealing surface thereon. A member adjacent to the opening has ... | 03/20/1979 |
| 4083677 | Method and apparatus for heating a furnace chamber The method for heating the furnace chamber produces high momentum levels during the heat treating cycle so as to obtain substantially uniform temperature throughout the charge. The method includes initially firing a plurality of high velocity burners at s... | 04/11/1978 |
| 3990950 | Leveler door for coke ovens A leveler door for sealing the leveler opening in a coke oven door; the oven door of the type having leveler door mounting and latching apparatus associated therewith. The leveler door comprising a flexible closure member possessing spring-like properties... | 11/09/1976 |
