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...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?
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| Number | Title | Issue Date |
| 7427375 | Diffuser for an annealing furnace A diffuser (24) for an annealing furnace has a plurality of radially extending generally and vertically oriented vanes (40) for radially directing furnace gases. The vanes have top edges (42) defining a generally planar support and the top edges... | 09/23/2008 |
| 7104789 | Wall structure for carbon baking furnace A carbon baking furnace having spaced-apart, hollow flue walls defining a soaking pit therebetween. Each of the flue walls is formed of refractory bricks and has a pit face facing the pit and a flue face facing an inner flue gas passage. A coating is provided on the... | 09/12/2006 |
| 7072743 | Semiconductor manufacturing gas flow divider system and method A system for dividing a single flow into two or more secondary flows of desired ratios, including an inlet adapted to receive the single flow, at least two secondary flow lines connected to the inlet, an input device adapted to receive at least one desired ratio of ... | 07/04/2006 |
| 7018485 | Apparatus for subjecting rare earth alloy to hydrogenation process and method for producing rare earth sintered magnet using the apparatus An apparatus for subjecting a rare earth alloy block to a hydrogenation process includes a casing, gas inlet and outlet ports, a member arranged to produce a gaseous flow, and a windbreak plate. The casing defines an inner space for receiving a container. The contai... | 03/28/2006 |
| 7018584 | Method and apparatus for metal processing A method for metal processing is provided in which a cooling atmosphere comprising hydrogen is used for accelerated cooling of a processed metal part in a furnace, resulting in improved properties for the metal part. A sintering furnace is also provided and comprise... | 03/28/2006 |
| 6941965 | Method and apparatus for providing a determined ratio of process fluids A fluid flow control system that includes a fluid inlet to receive a flow of process fluid and a plurality of fluid outlets. The plurality of fluid outlets include a first fluid outlet and at least one second fluid outlet. The first fluid outlet provides a first pre... | 09/13/2005 |
| 6426969 | Discharge screw for moving hearth Discharge screw (6) for a moving hearth, and in particular for an annular rotary hearth (2) of a reheat furnace for the heat treatment of loose materials, comprising a cylinder (61) arranged above and substantially radially with respect to this annular he... | 07/30/2002 |
| 6250907 | Device for hot-isostatic pressing of parts A method of treating parts (34) in a treatment chamber (33) by hot-isostatic pressing with an inert gas as pressure medium and in the presence of a purifying agent (25a) for the inert gas comprises the steps of reducing the pressure in the treatment chamb... | 06/26/2001 |
| 6241515 | Device and method for treating combustibles obtained from a thermal processing apparatus and apparatus employed thereby A device adapted for attachment to a thermal processing furnace, the device includes a housing having first and second openings with a chamber located therebetween, the second opening is operatively connected to a thermal processing furnace and in communi... | 06/05/2001 |
| 6106281 | Method of reducing the flow of gas needed for a chamber with controlled temperature and controlled composition of gas A temperature-controlled chamber, such as an inerted oven for soldering, in which the buoyancy-induced motion of gas at the opening of the chamber is suppressed by adjusting the densities of gases. In one embodiment the inertant gas is chosen to be a mixt... | 08/22/2000 |
| 5944894 | Substrate treatment system A substrate treatment system comprises process sections provided with at least either of liquid treatment group units and heat treatment group units, an upper space formed above the process sections in order to supply air to the process sections, a purifi... | 08/31/1999 |
| 5624255 | Multipurpose controlled atmosphere heat treatment system A multipurpose controlled atmosphere heat treatment system applicable to small-quantity production of multiple items as well as mass-production. A delivery path is provided so as to pass through a workstation and the heat treatment system and an automatic... | 04/29/1997 |
| 5236353 | Vertical combustion furnace A vertical resistive combustion furnace having a vertically oriented combustion zone in which first and second coaxially aligned tubes depend. The first tube is open at one end and closed at the other. The second tube is open at one end and partially clos... | 08/17/1993 |
| 5064617 | Combustion system A combustion chamber includes an inner cylindrical member concentrically mounted within an outer cylindrical member with a cylindrical space therebetween. The outer cylindrical member is enclosed at one end and both cylindrical members are open at an oppo... | 11/12/1991 |
| 5028399 | Gas manifold for solder reflow processing atmosphere A manifold (10) for use in a gas solder-reflow oven (50) comprises a hollow tube made from a transition metal having an open end (18) for receiving gas, a closed end (16), and a plurality of holes (12).... | 07/02/1991 |
| 4963090 | Reverse flow furnace/retort system Reversing the flow of conventional furnace/retort systems prevents damaging exhaust gases from entering the furnace while still maintaining a gas flow through the retort. The gases exit the retort into a treatment system; preventing contamination of any a... | 10/16/1990 |
| 4927359 | Fluid distribution apparatus A two-stage gas distribution nozzle for a muffle furnace includes an inner pipe with spaced apertures for feeding gas at spaced intervals to an outer pipe enclosing the inner pipe. The outer pipe includes spaced apertures facing in a direction such that t... | 05/22/1990 |
| 4920998 | Method and apparatus for controlling flow bias in a multiple zone process The present invention provides a method and apparatus for controlling the fluid flow bias of continuous, multiple zone processes having gas or vapor comprising atmospheres that are in immediate access to each other. Active control of the fluid flow bias i... | 05/01/1990 |
| 4805881 | Internal gas generator for heat treating furnace An internal gas generator in combination with a standard heat treat furnace is provided for producing either an endothermic product gas or a purge gas. The generator includes a reaction tube containing alternating packed beds of a highly active catalyst a... | 02/21/1989 |
| 4701127 | Controlled atmosphere capsule for fluxless brazing A controlled environment capsule for fluxless brazing comprising an open-bottom box, an end-plate and a foil gasket sealing means. Diffusion plates are disposed within the interior of the box and connected to an external source of inert gas. The inert gas... | 10/20/1987 |
| 4692114 | Vapor level control for vapor processing system A vapor processing system which has a vessel for containing a processing vapor generated by heating electronic fluid contained within the vessel. A selected saturated vapor zone level is devined for work product delivered to the vapor zone by generating a... | 09/08/1987 |
| 4683664 | Apparatus for drying metal turnings or scrap Apparatus for the drying of ferrous or non-ferrous turnings or scrap comprises a vertical axis drier (1) in which a drum (2) which encloses a transporter (3) for the turnings in question is mounted transversely. The turnings are heated indirectly via the ... | 08/04/1987 |
| 4627814 | Continuous type atmosphere heat treating furnace A continuous heat treating furnace for heat treating a ferrous metal work in a protective atmosphere, including a furnace separated into a charge chamber and a heat treating chamber by a partition door and provided with a transport device for transporting... | 12/09/1986 |
| 4616996 | Non-oxidizing atmosphere firing furnace for ceramic articles A non-oxidizing firing furnace for ceramic articles, which comprises a furnace chamber filled with a non-oxidizing gas, a conveyor mechanism provided on the floor portion of the furnace chamber and adapted to move the ceramic articles oppositely to a dire... | 10/14/1986 |
| 4597736 | Method and apparatus for heating semiconductor wafers A method and apparatus for heating semiconductor wafers characterized by the release of preheated nitrogen into an oven to considerably reduce heating time for the wafers. The oven is evacuated prior to the release of the preheated nitrogen.... | 07/01/1986 |
| 4555273 | Furnace transient anneal process A method for annealing semiconductor samples, especially following ion-implantation of semiconductor samples is disclosed. A furnace on a set of rails is passed over the semiconductor sample which is supported on a stationary wire basket made of low therm... | 11/26/1985 |
| 4551091 | Method for reducing the volume of atmosphere needed to inhibit ingress of ambient oxygen into the furnace chamber of a continuous heat treatment furnace The volume of atmosphere needed to inhibit the ingress of ambient oxygen into the furnace chamber (3) of a continuous heat treatment furnace (1) can be reduced by introducing a gas containing free oxygen (e.g. air) into the entrance section (2) and/or exi... | 11/05/1985 |
| 4543060 | Heat treatment of workpieces A continuous heat treatment furnace has an entrance, a preheat zone, a thermal treatment zone, a cooling zone and an exit. Curtains are provided at the entrance and exit respectively. Nitrogen and hydrogen (or other reducing gas) are supplied to the furna... | 09/24/1985 |
| 4490108 | Process for reducing the oxygen content of the atmosphere in a heat treatment furnace and heat treatment furnace for carrying out this process A process for reducing the oxygen content of the atmosphere in a heat treatment furnace for ceramic materials to a prescribed value comprises measuring the O2 content of the furnace atmosphere at the point in the furnace to be affected and intr... | 12/25/1984 |
| 4488871 | Process for producing uneven coloring effects on firing plate-like ceramic material For producing uneven coloring on firing plate-like ceramic material such as tiles or flags in a kiln, more specially a roller kiln, made up of preheating, firing and cooling zones, and through whose oxidizing atmosphere in the firing zone the material to ... | 12/18/1984 |
| 4482316 | Insulated atmosphere furnace A heat treat furnace wherein the furnace top and side walls are each defined by an outer, gas-tight metallic structural wall, an intermediate perforate metal plate generally parallel to and coextensive with the exterior wall to define a plenum chamber the... | 11/13/1984 |
| 4465923 | Apparatus for converting a laboratory air furnace to a reduction furnace A welded stainless steel box of rectangular cross section having a water led flange and cover is used in conjunction with an evacuation system and a pressure regulated and flow controlled gas supply to convert a standard air fired laboratory muffle furna... | 08/14/1984 |
| 4462797 | Cooling zone for a kiln, more specially a roller kiln The cooling zone (24) for a kiln, more specially a roller kiln, made up of a preheating zone (21), a firing zone (22) and a cooling zone (24), through which the goods to be kilned (10), more specially ceramic tiles or plates are transported without any bu... | 07/31/1984 |
| 4457493 | Gas atmosphere heating furnace A furnace for heating steel articles and so on without oxidation and decarbonization. In the furnace, non-oxidation gas atmosphere with or without cementation characteristics is produced and regenerated by subjecting the air to carbon elements and heat at... | 07/03/1984 |
| 4424026 | Equipment for manufacturing gas-filled discharge tubes for use as transient protection A furnace system adapted to perform various manufacturing phases in the production of gas-filled discharge tubes designed as transient protectors includes at least two vertically spaced treatment tube sections separated from each other by a sealing tube. ... | 01/03/1984 |
| 4406618 | Method of operating continuous heat treatment furnace for metal strip coils A method of operating a continuous heat treatment furnace for metal strip coils includes steps of enclosing them in muffles in the furnace supplied with an atmosphere gas containing a combustible gas such as hydrogen and feeding the muffles into and throu... | 09/27/1983 |
| 4405300 | Furnace tray with carbon plate A furnace tray for supporting tooth pegs used in the manufacture of false teeth, dental prostheses and the like comprises a refractory tray base member having a carbon plate receiving recess in its upper surface. A carbon plate is positioned in the recess... | 09/20/1983 |
| 4397451 | Furnace for the heat treatment of scale-covered steel A scale-covered, hot-rolled steel work is heated under a reducing atmosphere and is then allowed to slowly cool while placed under the reducing atmosphere. Thereafter the work is maintained at a predetermined temperature under an oxidizing atmosphere to c... | 08/09/1983 |
| 4369031 | Gas control system for chemical vapor deposition system A gas flow control system in which several constituent gases are mixed and the mixture delivered through controlled injectors to a processing zone. Mass flow controllers control the injector flows with one of the controllers being a master and the other b... | 01/18/1983 |
| 4365954 | Continuous furnace for firing ceramic articles A continuous electric tunnel furnace includes a tunnel through which articles to be fired are passed in a direction of feed. The tunnel has a length portion constituting a sintering zone. Nitrogen is introduced into the tunnel at the outlet thereof. The n... | 12/28/1982 |
