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| Number | Title | Issue Date |
| 7024342 | Thermal flow simulation for casting/molding processes A numerical procedure for simulating the behavior of incompressible, viscous fluid in a casting/molding process. The method is based on classical fluid dynamic equations and uses control volume-finite element and numerical techniques to solve the momentum and energy... | 04/04/2006 |
| 6936793 | Oven apparatus and method of use thereof A solder reflow oven with horizontal cyclonic convection air flow for enhancing equalized heating of printed circuit boards conveyed therethrough. Air circulation apparatus can include a first air movement fan for urging air to move horizontally laterally from the f... | 08/30/2005 |
| 6932938 | Method and apparatus for containing and ejecting a thixotropic metal slurry A container system including a vessel for holding a thixotropic semi-solid aluminum alloy slurry during its processing as a billet and an ejection system for cleanly discharging the processed thixotropic semi-solid aluminum billet. The crucible is preferably formed ... | 08/23/2005 |
| 6901773 | Semi-convective forced air system having amplified air nozzles for heating low “e” coated glass A semi-convective forced air system for heating glass sheets during a heating cycle comprises a heating chamber having a length and a width, at least one heating element located within the heating chamber, a conveyor having a length and a width, the conveyor extendi... | 06/07/2005 |
| 6783358 | Furnace and method for heating coated glass sheets A furnace (12) and a method for heating coated glass sheets by radiant heating also provides convective heating by hot air jets that entrain hot air within the furnace so the combined flow of hot air heats an upwardly facing coated glass surface in addition t... | 08/31/2004 |
| 6769425 | Fuel-fired furnace with combustion air-cooled draft inducer fan motor A fuel-fired, forced draft air heating furnace has a draft inducer fan disposed in a vestibule chamber having an exterior wall with an air intake opening therein. During operation of the draft inducer fan its motor is cooled by combustion air drawn inwardly through ... | 08/03/2004 |
| 6712064 | Cooking oven with improved heat distribution manifold system A cooking oven manifold system includes a conveyor extending through a housing and a plurality of air manifolds positioned above and below the conveyor, each air manifold having a pair of sidewalls extending between a back wall and an inlet. A pair of outlet nozzles... | 03/30/2004 |
| 6619953 | Reflow furnace The present invention relates to a reflow furnace for heating a carried circuit module to perform reflow soldering. The reflow furnace has a nozzle 60 for performing an operation of spraying the inert gas on a soldering portion for the circuit module carr... | 09/16/2003 |
| 6592364 | Apparatus, method and system for independently controlling airflow in a conveyor oven The present invention is an apparatus for distributing air to different regions of a conveyor oven. The apparatus has comprising one or more blowers to distribute the air. A lower plenum is connected to a blower. The lower plenum directs air to the lower ... | 07/15/2003 |
| 6539934 | Multiconveyor convection oven The multiconveyor convection oven comprises a baking chamber, at least two spaced-apart conveyors mounted transversally one over the other in the baking chamber, a heating chamber behind the baking chamber. A convection system is provided for allowing a c... | 04/01/2003 |
| 6394794 | Modular furnace system A modular furnace is fabricated from at least one module having a frame, a removable cover mounted to the frame, exterior cover panels on the frame, and an insulated case fastened to the interior of the module. A conveyor assembly extends through the modu... | 05/28/2002 |
| 6352431 | Furnace inducer motor cooling system A furnace includes a main blower housed in an inlet plenum that circulates temperature controlled air through the furnace and an inducer fan that circulates combustion gases through the furnace. The inducer fan is driven by an inducer fan motor with a hou... | 03/05/2002 |
| 6267587 | Thermal curing oven and thermal curing process An apparatus and a method for curing coatings on ophthalmic lenses is disclosed. The apparatus includes an oven that is continuously supplied with lenses. A vertically oriented conveyor having multiple carrier bars for supporting the lenses is positioned ... | 07/31/2001 |
| 6267588 | Longitudinal continuous furnace applicable to construction ceramic material A longitudinal continuous furnace applicable to construction ceramic material, including a main body (1) lined inside with refractory brick provided internally with a row of nozzles (2) intended to diffuse hot air generated by coaxial gas burners (4), air... | 07/31/2001 |
| 6250296 | Convection oven with circulated air filtration means A convection oven with a filtration system for recirculated convection gas. The oven includes an interior chamber, a product support in the interior chamber and a blower in fluid communication with at least one duct (preferably a plurality) for circulatin... | 06/26/2001 |
| 6192877 | Blown air distributor for a convection oven A blown air distributor for use in a convection oven having a blower that draws air from the baking chamber, a heat source to heat the drawn air and a plenum downstream from the blower to recirculate the heated air in the baking chamber. The blown air dis... | 02/27/2001 |
| 6045358 | Forced convection heating apparatus and process for heating glass sheets therewithin A forced convection heating apparatus and process for heating glass sheets therewithin includes a housing (200) having an interior region, a conveyor for conveying the glass sheets through the interior region of the housing (200), a gas burner (204) opera... | 04/04/2000 |
| 5974833 | Heat transfer method in glass sheet bending oven and a bending oven A heat transfer method in a glass bending furnace, which has a top array of of successive heating sections (2) and under it a bottom array of successive cooling sections (3), and in which method glass sheets are conveyed on bending molds in mold carrying ... | 11/02/1999 |
| 5970857 | Baking oven In a baking oven comprising at least one hearth, a baking conveyor belt, which is guided over a deflection roller, is allocated to each hearth. The deflection roller is extended out of the baking oven through openings where it is lodged for displacement i... | 10/26/1999 |
| 5881636 | Heat impingement bake oven An oven for baking food products includes a spiral conveyor having a wire mesh conveyor belt for transporting food products from a loading bin to a storage bin. The spiral conveyor is surrounded by a threaded cylindrical housing having apertures which com... | 03/16/1999 |
| 5875705 | Baking oven A baking oven comprises several oven modules disposed one after the other in the longitudinal direction, each of which comprising independently controllable heating devices and at least one supply duct for vapor and/or fresh air which leads to the hearths... | 03/02/1999 |
| 5683240 | Balanced air return convection oven A method and apparatus for heating a product which includes a plurality of tapered ducts in a cabinet above and below a conveyor to form streams which are directed toward the product. Spent air is drawn through return ducts which have intake openings cent... | 11/04/1997 |
| 5603615 | Smoke pollution device for tunnel kiln The present invention relates to a smoke and heat source recycling device for a tunnel kiln in order to prevent smoke pollution. It has an exhaust fan in the preheating zone, the exhaust fan absorbing heat from the preheating zone and delivering such heat... | 02/18/1997 |
| 5567151 | Reflow furnaces with hot air blow type heaters This invention discloses a furnace in which hot gases are discharged from heaters to provide uniform heating to printed circuit boards commonly used in the electronic industry. Outside air is prevented from flowing into the furnace, so as to reduce and to... | 10/22/1996 |
| 5423248 | Air circulator for impingement heat transfer apparatus A method and apparatus for heating a product which includes a plurality of tapered ducts in a cabinet above and below a conveyor to form streams which are directed toward the product. Spent air is drawn through return ducts which have intake openings cent... | 06/13/1995 |
| 5421316 | Conveyor oven with improved air flow A conveyor oven is described having increased efficiency from enhanced flow therethrough. The oven consists of an upper plenum, a lower plenum, and a return plenum. The upper plenum is disposed above the conveyor and dispenses heated air through nozzles d... | 06/06/1995 |
| 5277105 | Low profile stackable conveyor oven A conveyor oven module has a very low profile so that more oven modules may be stacked to give a greater baking capacity in the same "foot print" without the top conveyor being higher than the five and a half feet from the floor, which is the generally ac... | 01/11/1994 |
| 5131841 | Balanced air return convection oven A method and apparatus for heating a product which includes a plurality of tapered ducts in a cabinet above and below a conveyor to form streams which are directed toward the product. Spent air is drawn through return ducts which have intake openings cent... | 07/21/1992 |
| 4921422 | Method for controlling the preheating zone of a tunnel kiln This disclosure is directed to a method for controlling the preheating zone of a tunnel kiln which includes firing and cooling zones. The method comprises forcedly blowing air from the entire ceiling portion of the preheating zone in the downward directio... | 05/01/1990 |
| 4884969 | Tunnel kiln The invention relates to a tunnel kiln for fine ceramic products comprizing a heating section, a firing section, and a cooling section, where by means of gas conveying means (10) gases are taken in from the region of said cooling section (140, 176, 182) a... | 12/05/1989 |
| 4863377 | Apparatus for the hydraulic conveyance of substances and use thereof A conveyance channel (76) connects an inlet valve (74) to a free outlet (82) whereby the conveyance channel (76) first passes through a sterilization zone (78) and then through a cooling zone (80). Within the cooling zone (80), the conveyance conduit cont... | 09/05/1989 |
| 4846678 | Means and method for heat treatment of green bodies The invention relates to means for heat treating green bodies comprising two mutually parallel kiln channels operated in opposite directions each having at least one heating section, firing section, and cooling section, where an offtake means leads from o... | 07/11/1989 |
| 4834646 | Process for cooling fired products in a kiln A process is provided for cooling fired products such as tiles in a kiln by repeating a cooling step to cool down said products, the cooling step comprising blowing a cooling gaseous fluid, e.g., cooling air, to the fired products in the kiln, alternately... | 05/30/1989 |
| 4753215 | Burner for low profile inpingement oven A food preparation apparatus including a cooking chamber having a pair of openings in two opposite facing walls thereof. A conveyor extends through the side wall openings in the chamber for conveying a food product through the chamber. First and second pa... | 06/28/1988 |
| 4717339 | Curing oven The present invention provides a high efficiency, non-polluting curing oven, having an internal curing chamber comprising forward and rearward regions, bottom located forward and rearward access openings to and from the forward and rearward regions, a plu... | 01/05/1988 |
| 4674975 | Method and tunnel type furnace for calcining carbonaceous bodies, in particular electrodes The method comprises passing preformed bodies to be calcined, containing pyrolyzable substances, through a furnace having, arranged in succession, a first heating zone, a second or combustion zone wherein volatile substance released by said bodies are sub... | 06/23/1987 |
| 4626203 | Furnace Disclosed is a furnace having a furnace chamber formed with a work inlet and a work outlet, and a work mount turntable rotatably provided within the furnace chamber, the furnace further comprising work carry-in means for carrying a work while mounting the... | 12/02/1986 |
| 4620840 | Furnace for heating up cylindrical charges A furnace for heating cylindrical charges, in particular billets, rods and tubes, features a transportation facility with a conveyance device which feeds the charges in the longitudinal direction through a treatment chamber, the cross-sectional shape of w... | 11/04/1986 |
| 4616997 | Ingot pusher furnace An ingot furnace pusher furnace includes a fixed baffle assembly suspended from a furnace top wall. The baffle assembly includes a horizontal top baffle plate and a bottom baffle sheet disposed below the top plate. The bottom baffle sheet consist of a cen... | 10/14/1986 |
| 4585412 | Ingot pusher furnace An ingot pusher furnace includes a horizontal baffle assembly suspended from a frame member located above a furnace top wall. The baffle assembly includes of a center portion and a pair of first and second upwardly sloping end portions connected to the ce... | 04/29/1986 |
