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| Number | Title | Issue Date |
| 7048173 | Wave soldering method using lead-free solder, apparatus therefor, and wave-soldered assembly The present invention relates to a wave soldering method and a wave soldering apparatus using lead-free solder comprising a wave soldering step in which the lower side of a substrate with leads of component parts inserted in through-holes formed in the substrate fro... | 05/23/2006 |
| 7011710 | Concentration profile on demand gas delivery system (individual divert delivery system) Apparatus and method for delivering processing gas are provided. The apparatus for delivering processing gas from a vaporizer to a processing system comprises: a valve connected between the vaporizer and the processing system, the valve having a valve input connecte... | 03/14/2006 |
| 6997704 | Method and apparatus to aid in the delubrification of parts A method and apparatus for delubrification of parts. The method comprising the steps of moving the parts on the belt into a chamber of the furnace, heating the parts, igniting the unused combustible atmosphere above the parts, and allowing the atmosphere above the p... | 02/14/2006 |
| 6954994 | Moisture removal mechanism A moisture removal mechanism comprises a drying zone through which product to be dried passes. A fluid circulation path is in fluid communication with the drying zone. A forced fluid feed device directs drying fluid to and from the drying zone, the fluid feed device... | 10/18/2005 |
| 6921261 | Air-heating gas burner A burner (10, 210, 310, 410) including a fuel manifold (12, 212, 312, 412), perforated air-mixing plates (14, 16, 214, 218, 414) coupled to the fuel manifold to define a fuel-air mixing region (22, 473) therebetween above the fuel manifol... | 07/26/2005 |
| 6644962 | Heating furnace having heat regenerating burners and operation method thereof A method of controlling a furnace pressure for preventing air from intruding to a heating furnace, a method of stable operation during low combustion load of heat regenerating burners and a method of measuring concentration of an atmospheric gas in a heat... | 11/11/2003 |
| 6454562 | Oxy-boost control in furnaces A process controls oxy-boost firing and air-fuel burner firing in furnaces, including large glass furnaces such as float furnaces. The large side-fired regenerative float furnaces use oxy-boost firing for a variety of reasons, including production increas... | 09/24/2002 |
| 6418755 | Glass melting apparatus and method including exhausting the furnace atmosphere by removal of a heating element A system for melting and delivering glass to a work area such as spinners for making fiberglass includes a melter with heaters so arranged that the "hot spot" in the molten glass is located away from the walls and corrosion sensitive parts so that the var... | 07/16/2002 |
| 6339729 | Process and regulation device for ring furnaces A process for regulating a furnace which includes a sequence of sections, cooling sections, baking sections, and preheating sections, in which the preheating sections at the tail are fitted with exhaust pipes for combustion gases, and in the transverse di... | 01/15/2002 |
| 6276929 | Method for controlling kiln pressure A method for controlling kiln pressure for a shuttle kiln having an exhaust gas fan and an exhaust gas damper in an exhaust gas passage includes the steps of performing a control operation for controlling the number of revolution of the exhaust gas fan to... | 08/21/2001 |
| 6074203 | Method for supplying gas to a chamber and method for regulating the content of a given element in the atmosphere of such a chamber The invention relates to a process for supplying gas to a chamber which is supplied via a supply network which includes at least one primary line connected in its upstream part to a supply of the said gas, and at least two respective secondary lines conne... | 06/13/2000 |
| 6007330 | Liquid precursor delivery system A system for delivering a liquid phase precursor fluid into a process chamber as a vapor phase fluid at constant pressure, the system comprising: a vaporizer for vaporizing the liquid phase precursor fluid prior to injecting the vapor phase fluid precurso... | 12/28/1999 |
| 5795147 | Furnace having regulated flow rate of inerting gas A furnace, for instance a reflow soldering oven, in which oxygen concentration is either directly or inferentially sensed within central processing and either one or both of the inlet and outlet sections of the furnace. Signals generated by these sensors ... | 08/18/1998 |
| 5682826 | Systems and methods for controlling a draft inducer for a furnace Systems and methods for controlling a draft inducer for use with a furnace. The draft inducer includes a fan for inducing a draft in the furnace combustion chamber that causes a pressure drop across a heat exchanger assembly for moving exhaust combustion ... | 11/04/1997 |
| 5676069 | Systems and methods for controlling a draft inducer for a furnace Systems and methods for controlling a draft inducer for use with a furnace. The draft inducer includes a motor for driving a fan for inducing a draft in the furnace that causes a pressure drop across the heat exchanger of the furnace. A memory stores info... | 10/14/1997 |
| 5520538 | Low-gas temperature stabilization system The temperature of articles in an "environmental" chamber is stabilized by evacuation of the "environmental" chamber, after having stabilized the temperature of such an article to approximate that of a controlled-temperature member spaced from the article... | 05/28/1996 |
| 4726764 | Heat treating apparatus and method of operating heat treating apparatus A heat treating apparatus which comprises a core tube for containing a material to be treated, a heating furnace surrounding the core tube, core tube gas supply means for supplying gas into the core tube, furnace gas supply means for supplying gas into a ... | 02/23/1988 |
| 4576574 | Gas horseshoe forge A portable gas forge. The forge is comprised of a housing having an insulated interior and an opening for insertion of the article to be heated such as a horseshoe or the like. The forge is resistant to blow-out by wind when used in the field and has a sp... | 03/18/1986 |
| 4569658 | Tunnel ovens A tunnel oven 20 has a baking chamber divided by partitions 21 into a plurality of longitudinally extending zones 22. The oven heating system comprises upper and lower heater ducts 6a, 6b through which hot gases are passed, using a blower 24 for each zone... | 02/11/1986 |
| 4437835 | Method of and apparatus for measuring the rate at which gases are blown into a rotary kiln Gases are blown into the kiln through its shell by means of shell pipes or nozzle blocks. The rates at which gases actually enter the kiln are ascertained in that the pressure in each supply duct is pneumatically tapped at a constriction and is applied to... | 03/20/1984 |
| 4249890 | Production of heated bituminous mixes A process for the production of heated aggregate mix, such as bituminous mix, and a reactor for carrying out the process. In one aspect, the process entails the control of gas flow through a tumbler drum, preferably by controlling exhaust from the drum, i... | 02/10/1981 |
| 4179265 | Method and apparatus for operating rotary driers The pressure of heated gases supplied by a furnace to an induced draft, rotating drum drier, through which the material being dried is moved primarily by the heated gases, is compared with the pressure of gases discharging from the drum, and the different... | 12/18/1979 |
| 4096038 | Method and apparatus for operating a calciner under a pressure differential Method and apparatus for the heat treatment of volatile containing materials in a rotary hearth type furnace wherein the flue gases emanating from the calciner are employed to create either a positive or negative pressure within the calciner hearth as wel... | 06/20/1978 |
| 4002421 | Control of vertical heat treating vessels Uniform heat treatment of particulate material of nonuniform gradation in a vertical heat treating vessel such as a vertical kiln or retort is affected by regulating the heat input to a heat treating zone in the vessel in response to changes in specific g... | 01/11/1977 |
